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Get rid of some platform-specific functions examining window
[bpt/emacs.git] / src / w32fns.c
1 /* Graphical user interface functions for the Microsoft Windows API.
2
3 Copyright (C) 1989, 1992-2013 Free Software Foundation, Inc.
4
5 This file is part of GNU Emacs.
6
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
11
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
19
20 /* Added by Kevin Gallo */
21
22 #include <config.h>
23
24 #include <signal.h>
25 #include <stdio.h>
26 #include <limits.h>
27 #include <errno.h>
28 #include <math.h>
29 #include <fcntl.h>
30 #include <unistd.h>
31
32 #include "lisp.h"
33 #include "w32term.h"
34 #include "frame.h"
35 #include "window.h"
36 #include "character.h"
37 #include "buffer.h"
38 #include "intervals.h"
39 #include "dispextern.h"
40 #include "keyboard.h"
41 #include "blockinput.h"
42 #include "epaths.h"
43 #include "charset.h"
44 #include "coding.h"
45 #include "ccl.h"
46 #include "fontset.h"
47 #include "systime.h"
48 #include "termhooks.h"
49
50 #include "w32common.h"
51
52 #ifdef WINDOWSNT
53 #include "w32heap.h"
54 #endif /* WINDOWSNT */
55
56 #if CYGWIN
57 #include "cygw32.h"
58 #else
59 #include "w32.h"
60 #endif
61
62 #include "bitmaps/gray.xbm"
63
64 #include <commctrl.h>
65 #include <commdlg.h>
66 #include <shellapi.h>
67 #include <ctype.h>
68 #include <winspool.h>
69 #include <objbase.h>
70
71 #include <dlgs.h>
72 #include <imm.h>
73
74 #include "font.h"
75 #include "w32font.h"
76
77 #ifndef FOF_NO_CONNECTED_ELEMENTS
78 #define FOF_NO_CONNECTED_ELEMENTS 0x2000
79 #endif
80
81 void syms_of_w32fns (void);
82 void globals_of_w32fns (void);
83
84 extern void free_frame_menubar (struct frame *);
85 extern int w32_console_toggle_lock_key (int, Lisp_Object);
86 extern void w32_menu_display_help (HWND, HMENU, UINT, UINT);
87 extern void w32_free_menu_strings (HWND);
88 extern const char *map_w32_filename (const char *, const char **);
89 extern char * w32_strerror (int error_no);
90
91 /* If non-NULL, a handle to a frame where to display the hourglass cursor. */
92 static HWND hourglass_hwnd = NULL;
93
94 #ifndef IDC_HAND
95 #define IDC_HAND MAKEINTRESOURCE(32649)
96 #endif
97
98 Lisp_Object Qsuppress_icon;
99 Lisp_Object Qundefined_color;
100 Lisp_Object Qcancel_timer;
101 Lisp_Object Qfont_param;
102 Lisp_Object Qhyper;
103 Lisp_Object Qsuper;
104 Lisp_Object Qmeta;
105 Lisp_Object Qalt;
106 Lisp_Object Qctrl;
107 Lisp_Object Qcontrol;
108 Lisp_Object Qshift;
109
110
111 /* Prefix for system colors. */
112 #define SYSTEM_COLOR_PREFIX "System"
113 #define SYSTEM_COLOR_PREFIX_LEN (sizeof (SYSTEM_COLOR_PREFIX) - 1)
114
115 /* State variables for emulating a three button mouse. */
116 #define LMOUSE 1
117 #define MMOUSE 2
118 #define RMOUSE 4
119
120 static int button_state = 0;
121 static W32Msg saved_mouse_button_msg;
122 static unsigned mouse_button_timer = 0; /* non-zero when timer is active */
123 static W32Msg saved_mouse_move_msg;
124 static unsigned mouse_move_timer = 0;
125
126 /* Window that is tracking the mouse. */
127 static HWND track_mouse_window;
128
129 /* Multi-monitor API definitions that are not pulled from the headers
130 since we are compiling for NT 4. */
131 #ifndef MONITOR_DEFAULT_TO_NEAREST
132 #define MONITOR_DEFAULT_TO_NEAREST 2
133 #endif
134 /* MinGW headers define MONITORINFO unconditionally, but MSVC ones don't.
135 To avoid a compile error on one or the other, redefine with a new name. */
136 struct MONITOR_INFO
137 {
138 DWORD cbSize;
139 RECT rcMonitor;
140 RECT rcWork;
141 DWORD dwFlags;
142 };
143
144 /* Reportedly, MSVC does not have this in its headers. */
145 #if defined (_MSC_VER) && _WIN32_WINNT < 0x0500
146 DECLARE_HANDLE(HMONITOR);
147 #endif
148
149 typedef BOOL (WINAPI * TrackMouseEvent_Proc)
150 (IN OUT LPTRACKMOUSEEVENT lpEventTrack);
151 typedef LONG (WINAPI * ImmGetCompositionString_Proc)
152 (IN HIMC context, IN DWORD index, OUT LPVOID buffer, IN DWORD bufLen);
153 typedef HIMC (WINAPI * ImmGetContext_Proc) (IN HWND window);
154 typedef HWND (WINAPI * ImmReleaseContext_Proc) (IN HWND wnd, IN HIMC context);
155 typedef HWND (WINAPI * ImmSetCompositionWindow_Proc) (IN HIMC context,
156 IN COMPOSITIONFORM *form);
157 typedef HMONITOR (WINAPI * MonitorFromPoint_Proc) (IN POINT pt, IN DWORD flags);
158 typedef BOOL (WINAPI * GetMonitorInfo_Proc)
159 (IN HMONITOR monitor, OUT struct MONITOR_INFO* info);
160
161 TrackMouseEvent_Proc track_mouse_event_fn = NULL;
162 ImmGetCompositionString_Proc get_composition_string_fn = NULL;
163 ImmGetContext_Proc get_ime_context_fn = NULL;
164 ImmReleaseContext_Proc release_ime_context_fn = NULL;
165 ImmSetCompositionWindow_Proc set_ime_composition_window_fn = NULL;
166 MonitorFromPoint_Proc monitor_from_point_fn = NULL;
167 GetMonitorInfo_Proc get_monitor_info_fn = NULL;
168
169 #ifdef NTGUI_UNICODE
170 #define unicode_append_menu AppendMenuW
171 #else /* !NTGUI_UNICODE */
172 extern AppendMenuW_Proc unicode_append_menu;
173 #endif /* NTGUI_UNICODE */
174
175 /* Flag to selectively ignore WM_IME_CHAR messages. */
176 static int ignore_ime_char = 0;
177
178 /* W95 mousewheel handler */
179 unsigned int msh_mousewheel = 0;
180
181 /* Timers */
182 #define MOUSE_BUTTON_ID 1
183 #define MOUSE_MOVE_ID 2
184 #define MENU_FREE_ID 3
185 /* The delay (milliseconds) before a menu is freed after WM_EXITMENULOOP
186 is received. */
187 #define MENU_FREE_DELAY 1000
188 static unsigned menu_free_timer = 0;
189
190 #ifdef GLYPH_DEBUG
191 static int image_cache_refcount, dpyinfo_refcount;
192 #endif
193
194 static HWND w32_visible_system_caret_hwnd;
195
196 static int w32_unicode_gui;
197
198 /* From w32menu.c */
199 extern HMENU current_popup_menu;
200 static int menubar_in_use = 0;
201
202 /* From w32uniscribe.c */
203 extern void syms_of_w32uniscribe (void);
204 extern int uniscribe_available;
205
206 /* Function prototypes for hourglass support. */
207 static void w32_show_hourglass (struct frame *);
208 static void w32_hide_hourglass (void);
209
210 #ifdef WINDOWSNT
211 /* From w32inevt.c */
212 extern int faked_key;
213 #endif /* WINDOWSNT */
214
215 /* This gives us the page size and the size of the allocation unit on NT. */
216 SYSTEM_INFO sysinfo_cache;
217
218 /* This gives us version, build, and platform identification. */
219 OSVERSIONINFO osinfo_cache;
220
221 DWORD_PTR syspage_mask = 0;
222
223 /* The major and minor versions of NT. */
224 int w32_major_version;
225 int w32_minor_version;
226 int w32_build_number;
227
228 /* Distinguish between Windows NT and Windows 95. */
229 int os_subtype;
230
231 #ifdef HAVE_NTGUI
232 HINSTANCE hinst = NULL;
233 #endif
234
235 static unsigned int sound_type = 0xFFFFFFFF;
236 #define MB_EMACS_SILENT (0xFFFFFFFF - 1)
237
238 /* Let the user specify a display with a frame.
239 nil stands for the selected frame--or, if that is not a w32 frame,
240 the first display on the list. */
241
242 struct w32_display_info *
243 check_x_display_info (Lisp_Object frame)
244 {
245 if (NILP (frame))
246 {
247 struct frame *sf = XFRAME (selected_frame);
248
249 if (FRAME_W32_P (sf) && FRAME_LIVE_P (sf))
250 return FRAME_W32_DISPLAY_INFO (sf);
251 else
252 return &one_w32_display_info;
253 }
254 else if (STRINGP (frame))
255 return x_display_info_for_name (frame);
256 else
257 {
258 FRAME_PTR f;
259
260 CHECK_LIVE_FRAME (frame);
261 f = XFRAME (frame);
262 if (! FRAME_W32_P (f))
263 error ("Non-W32 frame used");
264 return FRAME_W32_DISPLAY_INFO (f);
265 }
266 }
267 \f
268 /* Return the Emacs frame-object corresponding to an w32 window.
269 It could be the frame's main window or an icon window. */
270
271 struct frame *
272 x_window_to_frame (struct w32_display_info *dpyinfo, HWND wdesc)
273 {
274 Lisp_Object tail, frame;
275 struct frame *f;
276
277 FOR_EACH_FRAME (tail, frame)
278 {
279 f = XFRAME (frame);
280 if (!FRAME_W32_P (f) || FRAME_W32_DISPLAY_INFO (f) != dpyinfo)
281 continue;
282
283 if (FRAME_W32_WINDOW (f) == wdesc)
284 return f;
285 }
286 return 0;
287 }
288
289 \f
290 static Lisp_Object unwind_create_frame (Lisp_Object);
291 static Lisp_Object unwind_create_tip_frame (Lisp_Object);
292 static void my_create_window (struct frame *);
293 static void my_create_tip_window (struct frame *);
294
295 /* TODO: Native Input Method support; see x_create_im. */
296 void x_set_foreground_color (struct frame *, Lisp_Object, Lisp_Object);
297 void x_set_background_color (struct frame *, Lisp_Object, Lisp_Object);
298 void x_set_mouse_color (struct frame *, Lisp_Object, Lisp_Object);
299 void x_set_cursor_color (struct frame *, Lisp_Object, Lisp_Object);
300 void x_set_border_color (struct frame *, Lisp_Object, Lisp_Object);
301 void x_set_cursor_type (struct frame *, Lisp_Object, Lisp_Object);
302 void x_set_icon_type (struct frame *, Lisp_Object, Lisp_Object);
303 void x_set_icon_name (struct frame *, Lisp_Object, Lisp_Object);
304 void x_explicitly_set_name (struct frame *, Lisp_Object, Lisp_Object);
305 void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
306 void x_set_title (struct frame *, Lisp_Object, Lisp_Object);
307 void x_set_tool_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
308
309
310 \f
311
312 /* Store the screen positions of frame F into XPTR and YPTR.
313 These are the positions of the containing window manager window,
314 not Emacs's own window. */
315
316 void
317 x_real_positions (FRAME_PTR f, int *xptr, int *yptr)
318 {
319 POINT pt;
320 RECT rect;
321
322 /* Get the bounds of the WM window. */
323 GetWindowRect (FRAME_W32_WINDOW (f), &rect);
324
325 pt.x = 0;
326 pt.y = 0;
327
328 /* Convert (0, 0) in the client area to screen co-ordinates. */
329 ClientToScreen (FRAME_W32_WINDOW (f), &pt);
330
331 /* Remember x_pixels_diff and y_pixels_diff. */
332 f->x_pixels_diff = pt.x - rect.left;
333 f->y_pixels_diff = pt.y - rect.top;
334
335 *xptr = rect.left;
336 *yptr = rect.top;
337 }
338
339 \f
340
341 DEFUN ("w32-define-rgb-color", Fw32_define_rgb_color,
342 Sw32_define_rgb_color, 4, 4, 0,
343 doc: /* Convert RGB numbers to a Windows color reference and associate with NAME.
344 This adds or updates a named color to `w32-color-map', making it
345 available for use. The original entry's RGB ref is returned, or nil
346 if the entry is new. */)
347 (Lisp_Object red, Lisp_Object green, Lisp_Object blue, Lisp_Object name)
348 {
349 Lisp_Object rgb;
350 Lisp_Object oldrgb = Qnil;
351 Lisp_Object entry;
352
353 CHECK_NUMBER (red);
354 CHECK_NUMBER (green);
355 CHECK_NUMBER (blue);
356 CHECK_STRING (name);
357
358 XSETINT (rgb, RGB (XUINT (red), XUINT (green), XUINT (blue)));
359
360 block_input ();
361
362 /* replace existing entry in w32-color-map or add new entry. */
363 entry = Fassoc (name, Vw32_color_map);
364 if (NILP (entry))
365 {
366 entry = Fcons (name, rgb);
367 Vw32_color_map = Fcons (entry, Vw32_color_map);
368 }
369 else
370 {
371 oldrgb = Fcdr (entry);
372 Fsetcdr (entry, rgb);
373 }
374
375 unblock_input ();
376
377 return (oldrgb);
378 }
379
380 /* The default colors for the w32 color map */
381 typedef struct colormap_t
382 {
383 char *name;
384 COLORREF colorref;
385 } colormap_t;
386
387 colormap_t w32_color_map[] =
388 {
389 {"snow" , PALETTERGB (255,250,250)},
390 {"ghost white" , PALETTERGB (248,248,255)},
391 {"GhostWhite" , PALETTERGB (248,248,255)},
392 {"white smoke" , PALETTERGB (245,245,245)},
393 {"WhiteSmoke" , PALETTERGB (245,245,245)},
394 {"gainsboro" , PALETTERGB (220,220,220)},
395 {"floral white" , PALETTERGB (255,250,240)},
396 {"FloralWhite" , PALETTERGB (255,250,240)},
397 {"old lace" , PALETTERGB (253,245,230)},
398 {"OldLace" , PALETTERGB (253,245,230)},
399 {"linen" , PALETTERGB (250,240,230)},
400 {"antique white" , PALETTERGB (250,235,215)},
401 {"AntiqueWhite" , PALETTERGB (250,235,215)},
402 {"papaya whip" , PALETTERGB (255,239,213)},
403 {"PapayaWhip" , PALETTERGB (255,239,213)},
404 {"blanched almond" , PALETTERGB (255,235,205)},
405 {"BlanchedAlmond" , PALETTERGB (255,235,205)},
406 {"bisque" , PALETTERGB (255,228,196)},
407 {"peach puff" , PALETTERGB (255,218,185)},
408 {"PeachPuff" , PALETTERGB (255,218,185)},
409 {"navajo white" , PALETTERGB (255,222,173)},
410 {"NavajoWhite" , PALETTERGB (255,222,173)},
411 {"moccasin" , PALETTERGB (255,228,181)},
412 {"cornsilk" , PALETTERGB (255,248,220)},
413 {"ivory" , PALETTERGB (255,255,240)},
414 {"lemon chiffon" , PALETTERGB (255,250,205)},
415 {"LemonChiffon" , PALETTERGB (255,250,205)},
416 {"seashell" , PALETTERGB (255,245,238)},
417 {"honeydew" , PALETTERGB (240,255,240)},
418 {"mint cream" , PALETTERGB (245,255,250)},
419 {"MintCream" , PALETTERGB (245,255,250)},
420 {"azure" , PALETTERGB (240,255,255)},
421 {"alice blue" , PALETTERGB (240,248,255)},
422 {"AliceBlue" , PALETTERGB (240,248,255)},
423 {"lavender" , PALETTERGB (230,230,250)},
424 {"lavender blush" , PALETTERGB (255,240,245)},
425 {"LavenderBlush" , PALETTERGB (255,240,245)},
426 {"misty rose" , PALETTERGB (255,228,225)},
427 {"MistyRose" , PALETTERGB (255,228,225)},
428 {"white" , PALETTERGB (255,255,255)},
429 {"black" , PALETTERGB ( 0, 0, 0)},
430 {"dark slate gray" , PALETTERGB ( 47, 79, 79)},
431 {"DarkSlateGray" , PALETTERGB ( 47, 79, 79)},
432 {"dark slate grey" , PALETTERGB ( 47, 79, 79)},
433 {"DarkSlateGrey" , PALETTERGB ( 47, 79, 79)},
434 {"dim gray" , PALETTERGB (105,105,105)},
435 {"DimGray" , PALETTERGB (105,105,105)},
436 {"dim grey" , PALETTERGB (105,105,105)},
437 {"DimGrey" , PALETTERGB (105,105,105)},
438 {"slate gray" , PALETTERGB (112,128,144)},
439 {"SlateGray" , PALETTERGB (112,128,144)},
440 {"slate grey" , PALETTERGB (112,128,144)},
441 {"SlateGrey" , PALETTERGB (112,128,144)},
442 {"light slate gray" , PALETTERGB (119,136,153)},
443 {"LightSlateGray" , PALETTERGB (119,136,153)},
444 {"light slate grey" , PALETTERGB (119,136,153)},
445 {"LightSlateGrey" , PALETTERGB (119,136,153)},
446 {"gray" , PALETTERGB (190,190,190)},
447 {"grey" , PALETTERGB (190,190,190)},
448 {"light grey" , PALETTERGB (211,211,211)},
449 {"LightGrey" , PALETTERGB (211,211,211)},
450 {"light gray" , PALETTERGB (211,211,211)},
451 {"LightGray" , PALETTERGB (211,211,211)},
452 {"midnight blue" , PALETTERGB ( 25, 25,112)},
453 {"MidnightBlue" , PALETTERGB ( 25, 25,112)},
454 {"navy" , PALETTERGB ( 0, 0,128)},
455 {"navy blue" , PALETTERGB ( 0, 0,128)},
456 {"NavyBlue" , PALETTERGB ( 0, 0,128)},
457 {"cornflower blue" , PALETTERGB (100,149,237)},
458 {"CornflowerBlue" , PALETTERGB (100,149,237)},
459 {"dark slate blue" , PALETTERGB ( 72, 61,139)},
460 {"DarkSlateBlue" , PALETTERGB ( 72, 61,139)},
461 {"slate blue" , PALETTERGB (106, 90,205)},
462 {"SlateBlue" , PALETTERGB (106, 90,205)},
463 {"medium slate blue" , PALETTERGB (123,104,238)},
464 {"MediumSlateBlue" , PALETTERGB (123,104,238)},
465 {"light slate blue" , PALETTERGB (132,112,255)},
466 {"LightSlateBlue" , PALETTERGB (132,112,255)},
467 {"medium blue" , PALETTERGB ( 0, 0,205)},
468 {"MediumBlue" , PALETTERGB ( 0, 0,205)},
469 {"royal blue" , PALETTERGB ( 65,105,225)},
470 {"RoyalBlue" , PALETTERGB ( 65,105,225)},
471 {"blue" , PALETTERGB ( 0, 0,255)},
472 {"dodger blue" , PALETTERGB ( 30,144,255)},
473 {"DodgerBlue" , PALETTERGB ( 30,144,255)},
474 {"deep sky blue" , PALETTERGB ( 0,191,255)},
475 {"DeepSkyBlue" , PALETTERGB ( 0,191,255)},
476 {"sky blue" , PALETTERGB (135,206,235)},
477 {"SkyBlue" , PALETTERGB (135,206,235)},
478 {"light sky blue" , PALETTERGB (135,206,250)},
479 {"LightSkyBlue" , PALETTERGB (135,206,250)},
480 {"steel blue" , PALETTERGB ( 70,130,180)},
481 {"SteelBlue" , PALETTERGB ( 70,130,180)},
482 {"light steel blue" , PALETTERGB (176,196,222)},
483 {"LightSteelBlue" , PALETTERGB (176,196,222)},
484 {"light blue" , PALETTERGB (173,216,230)},
485 {"LightBlue" , PALETTERGB (173,216,230)},
486 {"powder blue" , PALETTERGB (176,224,230)},
487 {"PowderBlue" , PALETTERGB (176,224,230)},
488 {"pale turquoise" , PALETTERGB (175,238,238)},
489 {"PaleTurquoise" , PALETTERGB (175,238,238)},
490 {"dark turquoise" , PALETTERGB ( 0,206,209)},
491 {"DarkTurquoise" , PALETTERGB ( 0,206,209)},
492 {"medium turquoise" , PALETTERGB ( 72,209,204)},
493 {"MediumTurquoise" , PALETTERGB ( 72,209,204)},
494 {"turquoise" , PALETTERGB ( 64,224,208)},
495 {"cyan" , PALETTERGB ( 0,255,255)},
496 {"light cyan" , PALETTERGB (224,255,255)},
497 {"LightCyan" , PALETTERGB (224,255,255)},
498 {"cadet blue" , PALETTERGB ( 95,158,160)},
499 {"CadetBlue" , PALETTERGB ( 95,158,160)},
500 {"medium aquamarine" , PALETTERGB (102,205,170)},
501 {"MediumAquamarine" , PALETTERGB (102,205,170)},
502 {"aquamarine" , PALETTERGB (127,255,212)},
503 {"dark green" , PALETTERGB ( 0,100, 0)},
504 {"DarkGreen" , PALETTERGB ( 0,100, 0)},
505 {"dark olive green" , PALETTERGB ( 85,107, 47)},
506 {"DarkOliveGreen" , PALETTERGB ( 85,107, 47)},
507 {"dark sea green" , PALETTERGB (143,188,143)},
508 {"DarkSeaGreen" , PALETTERGB (143,188,143)},
509 {"sea green" , PALETTERGB ( 46,139, 87)},
510 {"SeaGreen" , PALETTERGB ( 46,139, 87)},
511 {"medium sea green" , PALETTERGB ( 60,179,113)},
512 {"MediumSeaGreen" , PALETTERGB ( 60,179,113)},
513 {"light sea green" , PALETTERGB ( 32,178,170)},
514 {"LightSeaGreen" , PALETTERGB ( 32,178,170)},
515 {"pale green" , PALETTERGB (152,251,152)},
516 {"PaleGreen" , PALETTERGB (152,251,152)},
517 {"spring green" , PALETTERGB ( 0,255,127)},
518 {"SpringGreen" , PALETTERGB ( 0,255,127)},
519 {"lawn green" , PALETTERGB (124,252, 0)},
520 {"LawnGreen" , PALETTERGB (124,252, 0)},
521 {"green" , PALETTERGB ( 0,255, 0)},
522 {"chartreuse" , PALETTERGB (127,255, 0)},
523 {"medium spring green" , PALETTERGB ( 0,250,154)},
524 {"MediumSpringGreen" , PALETTERGB ( 0,250,154)},
525 {"green yellow" , PALETTERGB (173,255, 47)},
526 {"GreenYellow" , PALETTERGB (173,255, 47)},
527 {"lime green" , PALETTERGB ( 50,205, 50)},
528 {"LimeGreen" , PALETTERGB ( 50,205, 50)},
529 {"yellow green" , PALETTERGB (154,205, 50)},
530 {"YellowGreen" , PALETTERGB (154,205, 50)},
531 {"forest green" , PALETTERGB ( 34,139, 34)},
532 {"ForestGreen" , PALETTERGB ( 34,139, 34)},
533 {"olive drab" , PALETTERGB (107,142, 35)},
534 {"OliveDrab" , PALETTERGB (107,142, 35)},
535 {"dark khaki" , PALETTERGB (189,183,107)},
536 {"DarkKhaki" , PALETTERGB (189,183,107)},
537 {"khaki" , PALETTERGB (240,230,140)},
538 {"pale goldenrod" , PALETTERGB (238,232,170)},
539 {"PaleGoldenrod" , PALETTERGB (238,232,170)},
540 {"light goldenrod yellow" , PALETTERGB (250,250,210)},
541 {"LightGoldenrodYellow" , PALETTERGB (250,250,210)},
542 {"light yellow" , PALETTERGB (255,255,224)},
543 {"LightYellow" , PALETTERGB (255,255,224)},
544 {"yellow" , PALETTERGB (255,255, 0)},
545 {"gold" , PALETTERGB (255,215, 0)},
546 {"light goldenrod" , PALETTERGB (238,221,130)},
547 {"LightGoldenrod" , PALETTERGB (238,221,130)},
548 {"goldenrod" , PALETTERGB (218,165, 32)},
549 {"dark goldenrod" , PALETTERGB (184,134, 11)},
550 {"DarkGoldenrod" , PALETTERGB (184,134, 11)},
551 {"rosy brown" , PALETTERGB (188,143,143)},
552 {"RosyBrown" , PALETTERGB (188,143,143)},
553 {"indian red" , PALETTERGB (205, 92, 92)},
554 {"IndianRed" , PALETTERGB (205, 92, 92)},
555 {"saddle brown" , PALETTERGB (139, 69, 19)},
556 {"SaddleBrown" , PALETTERGB (139, 69, 19)},
557 {"sienna" , PALETTERGB (160, 82, 45)},
558 {"peru" , PALETTERGB (205,133, 63)},
559 {"burlywood" , PALETTERGB (222,184,135)},
560 {"beige" , PALETTERGB (245,245,220)},
561 {"wheat" , PALETTERGB (245,222,179)},
562 {"sandy brown" , PALETTERGB (244,164, 96)},
563 {"SandyBrown" , PALETTERGB (244,164, 96)},
564 {"tan" , PALETTERGB (210,180,140)},
565 {"chocolate" , PALETTERGB (210,105, 30)},
566 {"firebrick" , PALETTERGB (178,34, 34)},
567 {"brown" , PALETTERGB (165,42, 42)},
568 {"dark salmon" , PALETTERGB (233,150,122)},
569 {"DarkSalmon" , PALETTERGB (233,150,122)},
570 {"salmon" , PALETTERGB (250,128,114)},
571 {"light salmon" , PALETTERGB (255,160,122)},
572 {"LightSalmon" , PALETTERGB (255,160,122)},
573 {"orange" , PALETTERGB (255,165, 0)},
574 {"dark orange" , PALETTERGB (255,140, 0)},
575 {"DarkOrange" , PALETTERGB (255,140, 0)},
576 {"coral" , PALETTERGB (255,127, 80)},
577 {"light coral" , PALETTERGB (240,128,128)},
578 {"LightCoral" , PALETTERGB (240,128,128)},
579 {"tomato" , PALETTERGB (255, 99, 71)},
580 {"orange red" , PALETTERGB (255, 69, 0)},
581 {"OrangeRed" , PALETTERGB (255, 69, 0)},
582 {"red" , PALETTERGB (255, 0, 0)},
583 {"hot pink" , PALETTERGB (255,105,180)},
584 {"HotPink" , PALETTERGB (255,105,180)},
585 {"deep pink" , PALETTERGB (255, 20,147)},
586 {"DeepPink" , PALETTERGB (255, 20,147)},
587 {"pink" , PALETTERGB (255,192,203)},
588 {"light pink" , PALETTERGB (255,182,193)},
589 {"LightPink" , PALETTERGB (255,182,193)},
590 {"pale violet red" , PALETTERGB (219,112,147)},
591 {"PaleVioletRed" , PALETTERGB (219,112,147)},
592 {"maroon" , PALETTERGB (176, 48, 96)},
593 {"medium violet red" , PALETTERGB (199, 21,133)},
594 {"MediumVioletRed" , PALETTERGB (199, 21,133)},
595 {"violet red" , PALETTERGB (208, 32,144)},
596 {"VioletRed" , PALETTERGB (208, 32,144)},
597 {"magenta" , PALETTERGB (255, 0,255)},
598 {"violet" , PALETTERGB (238,130,238)},
599 {"plum" , PALETTERGB (221,160,221)},
600 {"orchid" , PALETTERGB (218,112,214)},
601 {"medium orchid" , PALETTERGB (186, 85,211)},
602 {"MediumOrchid" , PALETTERGB (186, 85,211)},
603 {"dark orchid" , PALETTERGB (153, 50,204)},
604 {"DarkOrchid" , PALETTERGB (153, 50,204)},
605 {"dark violet" , PALETTERGB (148, 0,211)},
606 {"DarkViolet" , PALETTERGB (148, 0,211)},
607 {"blue violet" , PALETTERGB (138, 43,226)},
608 {"BlueViolet" , PALETTERGB (138, 43,226)},
609 {"purple" , PALETTERGB (160, 32,240)},
610 {"medium purple" , PALETTERGB (147,112,219)},
611 {"MediumPurple" , PALETTERGB (147,112,219)},
612 {"thistle" , PALETTERGB (216,191,216)},
613 {"gray0" , PALETTERGB ( 0, 0, 0)},
614 {"grey0" , PALETTERGB ( 0, 0, 0)},
615 {"dark grey" , PALETTERGB (169,169,169)},
616 {"DarkGrey" , PALETTERGB (169,169,169)},
617 {"dark gray" , PALETTERGB (169,169,169)},
618 {"DarkGray" , PALETTERGB (169,169,169)},
619 {"dark blue" , PALETTERGB ( 0, 0,139)},
620 {"DarkBlue" , PALETTERGB ( 0, 0,139)},
621 {"dark cyan" , PALETTERGB ( 0,139,139)},
622 {"DarkCyan" , PALETTERGB ( 0,139,139)},
623 {"dark magenta" , PALETTERGB (139, 0,139)},
624 {"DarkMagenta" , PALETTERGB (139, 0,139)},
625 {"dark red" , PALETTERGB (139, 0, 0)},
626 {"DarkRed" , PALETTERGB (139, 0, 0)},
627 {"light green" , PALETTERGB (144,238,144)},
628 {"LightGreen" , PALETTERGB (144,238,144)},
629 };
630
631 static Lisp_Object
632 w32_default_color_map (void)
633 {
634 int i;
635 colormap_t *pc = w32_color_map;
636 Lisp_Object cmap;
637
638 block_input ();
639
640 cmap = Qnil;
641
642 for (i = 0; i < sizeof (w32_color_map) / sizeof (w32_color_map[0]);
643 pc++, i++)
644 cmap = Fcons (Fcons (build_string (pc->name),
645 make_number (pc->colorref)),
646 cmap);
647
648 unblock_input ();
649
650 return (cmap);
651 }
652
653 DEFUN ("w32-default-color-map", Fw32_default_color_map, Sw32_default_color_map,
654 0, 0, 0, doc: /* Return the default color map. */)
655 (void)
656 {
657 return w32_default_color_map ();
658 }
659
660 static Lisp_Object
661 w32_color_map_lookup (const char *colorname)
662 {
663 Lisp_Object tail, ret = Qnil;
664
665 block_input ();
666
667 for (tail = Vw32_color_map; CONSP (tail); tail = XCDR (tail))
668 {
669 register Lisp_Object elt, tem;
670
671 elt = XCAR (tail);
672 if (!CONSP (elt)) continue;
673
674 tem = XCAR (elt);
675
676 if (lstrcmpi (SDATA (tem), colorname) == 0)
677 {
678 ret = Fcdr (elt);
679 break;
680 }
681
682 QUIT;
683 }
684
685 unblock_input ();
686
687 return ret;
688 }
689
690
691 static void
692 add_system_logical_colors_to_map (Lisp_Object *system_colors)
693 {
694 HKEY colors_key;
695
696 /* Other registry operations are done with input blocked. */
697 block_input ();
698
699 /* Look for "Control Panel/Colors" under User and Machine registry
700 settings. */
701 if (RegOpenKeyEx (HKEY_CURRENT_USER, "Control Panel\\Colors", 0,
702 KEY_READ, &colors_key) == ERROR_SUCCESS
703 || RegOpenKeyEx (HKEY_LOCAL_MACHINE, "Control Panel\\Colors", 0,
704 KEY_READ, &colors_key) == ERROR_SUCCESS)
705 {
706 /* List all keys. */
707 char color_buffer[64];
708 char full_name_buffer[MAX_PATH + SYSTEM_COLOR_PREFIX_LEN];
709 int index = 0;
710 DWORD name_size, color_size;
711 char *name_buffer = full_name_buffer + SYSTEM_COLOR_PREFIX_LEN;
712
713 name_size = sizeof (full_name_buffer) - SYSTEM_COLOR_PREFIX_LEN;
714 color_size = sizeof (color_buffer);
715
716 strcpy (full_name_buffer, SYSTEM_COLOR_PREFIX);
717
718 while (RegEnumValueA (colors_key, index, name_buffer, &name_size,
719 NULL, NULL, color_buffer, &color_size)
720 == ERROR_SUCCESS)
721 {
722 int r, g, b;
723 if (sscanf (color_buffer, " %u %u %u", &r, &g, &b) == 3)
724 *system_colors = Fcons (Fcons (build_string (full_name_buffer),
725 make_number (RGB (r, g, b))),
726 *system_colors);
727
728 name_size = sizeof (full_name_buffer) - SYSTEM_COLOR_PREFIX_LEN;
729 color_size = sizeof (color_buffer);
730 index++;
731 }
732 RegCloseKey (colors_key);
733 }
734
735 unblock_input ();
736 }
737
738
739 static Lisp_Object
740 x_to_w32_color (const char * colorname)
741 {
742 register Lisp_Object ret = Qnil;
743
744 block_input ();
745
746 if (colorname[0] == '#')
747 {
748 /* Could be an old-style RGB Device specification. */
749 int size = strlen (colorname + 1);
750 char *color = alloca (size + 1);
751
752 strcpy (color, colorname + 1);
753 if (size == 3 || size == 6 || size == 9 || size == 12)
754 {
755 UINT colorval;
756 int i, pos;
757 pos = 0;
758 size /= 3;
759 colorval = 0;
760
761 for (i = 0; i < 3; i++)
762 {
763 char *end;
764 char t;
765 unsigned long value;
766
767 /* The check for 'x' in the following conditional takes into
768 account the fact that strtol allows a "0x" in front of
769 our numbers, and we don't. */
770 if (!isxdigit (color[0]) || color[1] == 'x')
771 break;
772 t = color[size];
773 color[size] = '\0';
774 value = strtoul (color, &end, 16);
775 color[size] = t;
776 if (errno == ERANGE || end - color != size)
777 break;
778 switch (size)
779 {
780 case 1:
781 value = value * 0x10;
782 break;
783 case 2:
784 break;
785 case 3:
786 value /= 0x10;
787 break;
788 case 4:
789 value /= 0x100;
790 break;
791 }
792 colorval |= (value << pos);
793 pos += 0x8;
794 if (i == 2)
795 {
796 unblock_input ();
797 XSETINT (ret, colorval);
798 return ret;
799 }
800 color = end;
801 }
802 }
803 }
804 else if (strnicmp (colorname, "rgb:", 4) == 0)
805 {
806 const char *color;
807 UINT colorval;
808 int i, pos;
809 pos = 0;
810
811 colorval = 0;
812 color = colorname + 4;
813 for (i = 0; i < 3; i++)
814 {
815 char *end;
816 unsigned long value;
817
818 /* The check for 'x' in the following conditional takes into
819 account the fact that strtol allows a "0x" in front of
820 our numbers, and we don't. */
821 if (!isxdigit (color[0]) || color[1] == 'x')
822 break;
823 value = strtoul (color, &end, 16);
824 if (errno == ERANGE)
825 break;
826 switch (end - color)
827 {
828 case 1:
829 value = value * 0x10 + value;
830 break;
831 case 2:
832 break;
833 case 3:
834 value /= 0x10;
835 break;
836 case 4:
837 value /= 0x100;
838 break;
839 default:
840 value = ULONG_MAX;
841 }
842 if (value == ULONG_MAX)
843 break;
844 colorval |= (value << pos);
845 pos += 0x8;
846 if (i == 2)
847 {
848 if (*end != '\0')
849 break;
850 unblock_input ();
851 XSETINT (ret, colorval);
852 return ret;
853 }
854 if (*end != '/')
855 break;
856 color = end + 1;
857 }
858 }
859 else if (strnicmp (colorname, "rgbi:", 5) == 0)
860 {
861 /* This is an RGB Intensity specification. */
862 const char *color;
863 UINT colorval;
864 int i, pos;
865 pos = 0;
866
867 colorval = 0;
868 color = colorname + 5;
869 for (i = 0; i < 3; i++)
870 {
871 char *end;
872 double value;
873 UINT val;
874
875 value = strtod (color, &end);
876 if (errno == ERANGE)
877 break;
878 if (value < 0.0 || value > 1.0)
879 break;
880 val = (UINT)(0x100 * value);
881 /* We used 0x100 instead of 0xFF to give a continuous
882 range between 0.0 and 1.0 inclusive. The next statement
883 fixes the 1.0 case. */
884 if (val == 0x100)
885 val = 0xFF;
886 colorval |= (val << pos);
887 pos += 0x8;
888 if (i == 2)
889 {
890 if (*end != '\0')
891 break;
892 unblock_input ();
893 XSETINT (ret, colorval);
894 return ret;
895 }
896 if (*end != '/')
897 break;
898 color = end + 1;
899 }
900 }
901 /* I am not going to attempt to handle any of the CIE color schemes
902 or TekHVC, since I don't know the algorithms for conversion to
903 RGB. */
904
905 /* If we fail to lookup the color name in w32_color_map, then check the
906 colorname to see if it can be crudely approximated: If the X color
907 ends in a number (e.g., "darkseagreen2"), strip the number and
908 return the result of looking up the base color name. */
909 ret = w32_color_map_lookup (colorname);
910 if (NILP (ret))
911 {
912 int len = strlen (colorname);
913
914 if (isdigit (colorname[len - 1]))
915 {
916 char *ptr, *approx = alloca (len + 1);
917
918 strcpy (approx, colorname);
919 ptr = &approx[len - 1];
920 while (ptr > approx && isdigit (*ptr))
921 *ptr-- = '\0';
922
923 ret = w32_color_map_lookup (approx);
924 }
925 }
926
927 unblock_input ();
928 return ret;
929 }
930
931 void
932 w32_regenerate_palette (FRAME_PTR f)
933 {
934 struct w32_palette_entry * list;
935 LOGPALETTE * log_palette;
936 HPALETTE new_palette;
937 int i;
938
939 /* don't bother trying to create palette if not supported */
940 if (! FRAME_W32_DISPLAY_INFO (f)->has_palette)
941 return;
942
943 log_palette = (LOGPALETTE *)
944 alloca (sizeof (LOGPALETTE) +
945 FRAME_W32_DISPLAY_INFO (f)->num_colors * sizeof (PALETTEENTRY));
946 log_palette->palVersion = 0x300;
947 log_palette->palNumEntries = FRAME_W32_DISPLAY_INFO (f)->num_colors;
948
949 list = FRAME_W32_DISPLAY_INFO (f)->color_list;
950 for (i = 0;
951 i < FRAME_W32_DISPLAY_INFO (f)->num_colors;
952 i++, list = list->next)
953 log_palette->palPalEntry[i] = list->entry;
954
955 new_palette = CreatePalette (log_palette);
956
957 enter_crit ();
958
959 if (FRAME_W32_DISPLAY_INFO (f)->palette)
960 DeleteObject (FRAME_W32_DISPLAY_INFO (f)->palette);
961 FRAME_W32_DISPLAY_INFO (f)->palette = new_palette;
962
963 /* Realize display palette and garbage all frames. */
964 release_frame_dc (f, get_frame_dc (f));
965
966 leave_crit ();
967 }
968
969 #define W32_COLOR(pe) RGB (pe.peRed, pe.peGreen, pe.peBlue)
970 #define SET_W32_COLOR(pe, color) \
971 do \
972 { \
973 pe.peRed = GetRValue (color); \
974 pe.peGreen = GetGValue (color); \
975 pe.peBlue = GetBValue (color); \
976 pe.peFlags = 0; \
977 } while (0)
978
979 #if 0
980 /* Keep these around in case we ever want to track color usage. */
981 void
982 w32_map_color (FRAME_PTR f, COLORREF color)
983 {
984 struct w32_palette_entry * list = FRAME_W32_DISPLAY_INFO (f)->color_list;
985
986 if (NILP (Vw32_enable_palette))
987 return;
988
989 /* check if color is already mapped */
990 while (list)
991 {
992 if (W32_COLOR (list->entry) == color)
993 {
994 ++list->refcount;
995 return;
996 }
997 list = list->next;
998 }
999
1000 /* not already mapped, so add to list and recreate Windows palette */
1001 list = xmalloc (sizeof (struct w32_palette_entry));
1002 SET_W32_COLOR (list->entry, color);
1003 list->refcount = 1;
1004 list->next = FRAME_W32_DISPLAY_INFO (f)->color_list;
1005 FRAME_W32_DISPLAY_INFO (f)->color_list = list;
1006 FRAME_W32_DISPLAY_INFO (f)->num_colors++;
1007
1008 /* set flag that palette must be regenerated */
1009 FRAME_W32_DISPLAY_INFO (f)->regen_palette = TRUE;
1010 }
1011
1012 void
1013 w32_unmap_color (FRAME_PTR f, COLORREF color)
1014 {
1015 struct w32_palette_entry * list = FRAME_W32_DISPLAY_INFO (f)->color_list;
1016 struct w32_palette_entry **prev = &FRAME_W32_DISPLAY_INFO (f)->color_list;
1017
1018 if (NILP (Vw32_enable_palette))
1019 return;
1020
1021 /* check if color is already mapped */
1022 while (list)
1023 {
1024 if (W32_COLOR (list->entry) == color)
1025 {
1026 if (--list->refcount == 0)
1027 {
1028 *prev = list->next;
1029 xfree (list);
1030 FRAME_W32_DISPLAY_INFO (f)->num_colors--;
1031 break;
1032 }
1033 else
1034 return;
1035 }
1036 prev = &list->next;
1037 list = list->next;
1038 }
1039
1040 /* set flag that palette must be regenerated */
1041 FRAME_W32_DISPLAY_INFO (f)->regen_palette = TRUE;
1042 }
1043 #endif
1044
1045
1046 /* Gamma-correct COLOR on frame F. */
1047
1048 void
1049 gamma_correct (struct frame *f, COLORREF *color)
1050 {
1051 if (f->gamma)
1052 {
1053 *color = PALETTERGB (
1054 pow (GetRValue (*color) / 255.0, f->gamma) * 255.0 + 0.5,
1055 pow (GetGValue (*color) / 255.0, f->gamma) * 255.0 + 0.5,
1056 pow (GetBValue (*color) / 255.0, f->gamma) * 255.0 + 0.5);
1057 }
1058 }
1059
1060
1061 /* Decide if color named COLOR is valid for the display associated with
1062 the selected frame; if so, return the rgb values in COLOR_DEF.
1063 If ALLOC is nonzero, allocate a new colormap cell. */
1064
1065 int
1066 w32_defined_color (FRAME_PTR f, const char *color, XColor *color_def, int alloc)
1067 {
1068 register Lisp_Object tem;
1069 COLORREF w32_color_ref;
1070
1071 tem = x_to_w32_color (color);
1072
1073 if (!NILP (tem))
1074 {
1075 if (f)
1076 {
1077 /* Apply gamma correction. */
1078 w32_color_ref = XUINT (tem);
1079 gamma_correct (f, &w32_color_ref);
1080 XSETINT (tem, w32_color_ref);
1081 }
1082
1083 /* Map this color to the palette if it is enabled. */
1084 if (!NILP (Vw32_enable_palette))
1085 {
1086 struct w32_palette_entry * entry =
1087 one_w32_display_info.color_list;
1088 struct w32_palette_entry ** prev =
1089 &one_w32_display_info.color_list;
1090
1091 /* check if color is already mapped */
1092 while (entry)
1093 {
1094 if (W32_COLOR (entry->entry) == XUINT (tem))
1095 break;
1096 prev = &entry->next;
1097 entry = entry->next;
1098 }
1099
1100 if (entry == NULL && alloc)
1101 {
1102 /* not already mapped, so add to list */
1103 entry = xmalloc (sizeof (struct w32_palette_entry));
1104 SET_W32_COLOR (entry->entry, XUINT (tem));
1105 entry->next = NULL;
1106 *prev = entry;
1107 one_w32_display_info.num_colors++;
1108
1109 /* set flag that palette must be regenerated */
1110 one_w32_display_info.regen_palette = TRUE;
1111 }
1112 }
1113 /* Ensure COLORREF value is snapped to nearest color in (default)
1114 palette by simulating the PALETTERGB macro. This works whether
1115 or not the display device has a palette. */
1116 w32_color_ref = XUINT (tem) | 0x2000000;
1117
1118 color_def->pixel = w32_color_ref;
1119 color_def->red = GetRValue (w32_color_ref) * 256;
1120 color_def->green = GetGValue (w32_color_ref) * 256;
1121 color_def->blue = GetBValue (w32_color_ref) * 256;
1122
1123 return 1;
1124 }
1125 else
1126 {
1127 return 0;
1128 }
1129 }
1130
1131 /* Given a string ARG naming a color, compute a pixel value from it
1132 suitable for screen F.
1133 If F is not a color screen, return DEF (default) regardless of what
1134 ARG says. */
1135
1136 int
1137 x_decode_color (FRAME_PTR f, Lisp_Object arg, int def)
1138 {
1139 XColor cdef;
1140
1141 CHECK_STRING (arg);
1142
1143 if (strcmp (SDATA (arg), "black") == 0)
1144 return BLACK_PIX_DEFAULT (f);
1145 else if (strcmp (SDATA (arg), "white") == 0)
1146 return WHITE_PIX_DEFAULT (f);
1147
1148 if ((FRAME_W32_DISPLAY_INFO (f)->n_planes * FRAME_W32_DISPLAY_INFO (f)->n_cbits) == 1)
1149 return def;
1150
1151 /* w32_defined_color is responsible for coping with failures
1152 by looking for a near-miss. */
1153 if (w32_defined_color (f, SDATA (arg), &cdef, 1))
1154 return cdef.pixel;
1155
1156 /* defined_color failed; return an ultimate default. */
1157 return def;
1158 }
1159 \f
1160
1161
1162 /* Functions called only from `x_set_frame_param'
1163 to set individual parameters.
1164
1165 If FRAME_W32_WINDOW (f) is 0,
1166 the frame is being created and its window does not exist yet.
1167 In that case, just record the parameter's new value
1168 in the standard place; do not attempt to change the window. */
1169
1170 void
1171 x_set_foreground_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
1172 {
1173 struct w32_output *x = f->output_data.w32;
1174 PIX_TYPE fg, old_fg;
1175
1176 fg = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1177 old_fg = FRAME_FOREGROUND_PIXEL (f);
1178 FRAME_FOREGROUND_PIXEL (f) = fg;
1179
1180 if (FRAME_W32_WINDOW (f) != 0)
1181 {
1182 if (x->cursor_pixel == old_fg)
1183 {
1184 x->cursor_pixel = fg;
1185 x->cursor_gc->background = fg;
1186 }
1187
1188 update_face_from_frame_parameter (f, Qforeground_color, arg);
1189 if (FRAME_VISIBLE_P (f))
1190 redraw_frame (f);
1191 }
1192 }
1193
1194 void
1195 x_set_background_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
1196 {
1197 FRAME_BACKGROUND_PIXEL (f)
1198 = x_decode_color (f, arg, WHITE_PIX_DEFAULT (f));
1199
1200 if (FRAME_W32_WINDOW (f) != 0)
1201 {
1202 SetWindowLong (FRAME_W32_WINDOW (f), WND_BACKGROUND_INDEX,
1203 FRAME_BACKGROUND_PIXEL (f));
1204
1205 update_face_from_frame_parameter (f, Qbackground_color, arg);
1206
1207 if (FRAME_VISIBLE_P (f))
1208 redraw_frame (f);
1209 }
1210 }
1211
1212 void
1213 x_set_mouse_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
1214 {
1215 Cursor cursor, nontext_cursor, mode_cursor, hand_cursor;
1216 int count;
1217 int mask_color;
1218
1219 if (!EQ (Qnil, arg))
1220 f->output_data.w32->mouse_pixel
1221 = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1222 mask_color = FRAME_BACKGROUND_PIXEL (f);
1223
1224 /* Don't let pointers be invisible. */
1225 if (mask_color == f->output_data.w32->mouse_pixel
1226 && mask_color == FRAME_BACKGROUND_PIXEL (f))
1227 f->output_data.w32->mouse_pixel = FRAME_FOREGROUND_PIXEL (f);
1228
1229 #if 0 /* TODO : Mouse cursor customization. */
1230 block_input ();
1231
1232 /* It's not okay to crash if the user selects a screwy cursor. */
1233 count = x_catch_errors (FRAME_W32_DISPLAY (f));
1234
1235 if (!EQ (Qnil, Vx_pointer_shape))
1236 {
1237 CHECK_NUMBER (Vx_pointer_shape);
1238 cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XINT (Vx_pointer_shape));
1239 }
1240 else
1241 cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_xterm);
1242 x_check_errors (FRAME_W32_DISPLAY (f), "bad text pointer cursor: %s");
1243
1244 if (!EQ (Qnil, Vx_nontext_pointer_shape))
1245 {
1246 CHECK_NUMBER (Vx_nontext_pointer_shape);
1247 nontext_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1248 XINT (Vx_nontext_pointer_shape));
1249 }
1250 else
1251 nontext_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_left_ptr);
1252 x_check_errors (FRAME_W32_DISPLAY (f), "bad nontext pointer cursor: %s");
1253
1254 if (!EQ (Qnil, Vx_hourglass_pointer_shape))
1255 {
1256 CHECK_NUMBER (Vx_hourglass_pointer_shape);
1257 hourglass_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1258 XINT (Vx_hourglass_pointer_shape));
1259 }
1260 else
1261 hourglass_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_watch);
1262 x_check_errors (FRAME_W32_DISPLAY (f), "bad busy pointer cursor: %s");
1263
1264 x_check_errors (FRAME_W32_DISPLAY (f), "bad nontext pointer cursor: %s");
1265 if (!EQ (Qnil, Vx_mode_pointer_shape))
1266 {
1267 CHECK_NUMBER (Vx_mode_pointer_shape);
1268 mode_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1269 XINT (Vx_mode_pointer_shape));
1270 }
1271 else
1272 mode_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_xterm);
1273 x_check_errors (FRAME_W32_DISPLAY (f), "bad modeline pointer cursor: %s");
1274
1275 if (!EQ (Qnil, Vx_sensitive_text_pointer_shape))
1276 {
1277 CHECK_NUMBER (Vx_sensitive_text_pointer_shape);
1278 hand_cursor
1279 = XCreateFontCursor (FRAME_W32_DISPLAY (f),
1280 XINT (Vx_sensitive_text_pointer_shape));
1281 }
1282 else
1283 hand_cursor = XCreateFontCursor (FRAME_W32_DISPLAY (f), XC_crosshair);
1284
1285 if (!NILP (Vx_window_horizontal_drag_shape))
1286 {
1287 CHECK_NUMBER (Vx_window_horizontal_drag_shape);
1288 horizontal_drag_cursor
1289 = XCreateFontCursor (FRAME_X_DISPLAY (f),
1290 XINT (Vx_window_horizontal_drag_shape));
1291 }
1292 else
1293 horizontal_drag_cursor
1294 = XCreateFontCursor (FRAME_X_DISPLAY (f), XC_sb_h_double_arrow);
1295
1296 /* Check and report errors with the above calls. */
1297 x_check_errors (FRAME_W32_DISPLAY (f), "can't set cursor shape: %s");
1298 x_uncatch_errors (FRAME_W32_DISPLAY (f), count);
1299
1300 {
1301 XColor fore_color, back_color;
1302
1303 fore_color.pixel = f->output_data.w32->mouse_pixel;
1304 back_color.pixel = mask_color;
1305 XQueryColor (FRAME_W32_DISPLAY (f),
1306 DefaultColormap (FRAME_W32_DISPLAY (f),
1307 DefaultScreen (FRAME_W32_DISPLAY (f))),
1308 &fore_color);
1309 XQueryColor (FRAME_W32_DISPLAY (f),
1310 DefaultColormap (FRAME_W32_DISPLAY (f),
1311 DefaultScreen (FRAME_W32_DISPLAY (f))),
1312 &back_color);
1313 XRecolorCursor (FRAME_W32_DISPLAY (f), cursor,
1314 &fore_color, &back_color);
1315 XRecolorCursor (FRAME_W32_DISPLAY (f), nontext_cursor,
1316 &fore_color, &back_color);
1317 XRecolorCursor (FRAME_W32_DISPLAY (f), mode_cursor,
1318 &fore_color, &back_color);
1319 XRecolorCursor (FRAME_W32_DISPLAY (f), hand_cursor,
1320 &fore_color, &back_color);
1321 XRecolorCursor (FRAME_W32_DISPLAY (f), hourglass_cursor,
1322 &fore_color, &back_color);
1323 }
1324
1325 if (FRAME_W32_WINDOW (f) != 0)
1326 XDefineCursor (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f), cursor);
1327
1328 if (cursor != f->output_data.w32->text_cursor && f->output_data.w32->text_cursor != 0)
1329 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->text_cursor);
1330 f->output_data.w32->text_cursor = cursor;
1331
1332 if (nontext_cursor != f->output_data.w32->nontext_cursor
1333 && f->output_data.w32->nontext_cursor != 0)
1334 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->nontext_cursor);
1335 f->output_data.w32->nontext_cursor = nontext_cursor;
1336
1337 if (hourglass_cursor != f->output_data.w32->hourglass_cursor
1338 && f->output_data.w32->hourglass_cursor != 0)
1339 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->hourglass_cursor);
1340 f->output_data.w32->hourglass_cursor = hourglass_cursor;
1341
1342 if (mode_cursor != f->output_data.w32->modeline_cursor
1343 && f->output_data.w32->modeline_cursor != 0)
1344 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->modeline_cursor);
1345 f->output_data.w32->modeline_cursor = mode_cursor;
1346
1347 if (hand_cursor != f->output_data.w32->hand_cursor
1348 && f->output_data.w32->hand_cursor != 0)
1349 XFreeCursor (FRAME_W32_DISPLAY (f), f->output_data.w32->hand_cursor);
1350 f->output_data.w32->hand_cursor = hand_cursor;
1351
1352 XFlush (FRAME_W32_DISPLAY (f));
1353 unblock_input ();
1354
1355 update_face_from_frame_parameter (f, Qmouse_color, arg);
1356 #endif /* TODO */
1357 }
1358
1359 void
1360 x_set_cursor_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
1361 {
1362 unsigned long fore_pixel, pixel;
1363
1364 if (!NILP (Vx_cursor_fore_pixel))
1365 fore_pixel = x_decode_color (f, Vx_cursor_fore_pixel,
1366 WHITE_PIX_DEFAULT (f));
1367 else
1368 fore_pixel = FRAME_BACKGROUND_PIXEL (f);
1369
1370 pixel = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1371
1372 /* Make sure that the cursor color differs from the background color. */
1373 if (pixel == FRAME_BACKGROUND_PIXEL (f))
1374 {
1375 pixel = f->output_data.w32->mouse_pixel;
1376 if (pixel == fore_pixel)
1377 fore_pixel = FRAME_BACKGROUND_PIXEL (f);
1378 }
1379
1380 f->output_data.w32->cursor_foreground_pixel = fore_pixel;
1381 f->output_data.w32->cursor_pixel = pixel;
1382
1383 if (FRAME_W32_WINDOW (f) != 0)
1384 {
1385 block_input ();
1386 /* Update frame's cursor_gc. */
1387 f->output_data.w32->cursor_gc->foreground = fore_pixel;
1388 f->output_data.w32->cursor_gc->background = pixel;
1389
1390 unblock_input ();
1391
1392 if (FRAME_VISIBLE_P (f))
1393 {
1394 x_update_cursor (f, 0);
1395 x_update_cursor (f, 1);
1396 }
1397 }
1398
1399 update_face_from_frame_parameter (f, Qcursor_color, arg);
1400 }
1401
1402 /* Set the border-color of frame F to pixel value PIX.
1403 Note that this does not fully take effect if done before
1404 F has a window. */
1405
1406 void
1407 x_set_border_pixel (struct frame *f, int pix)
1408 {
1409
1410 f->output_data.w32->border_pixel = pix;
1411
1412 if (FRAME_W32_WINDOW (f) != 0 && f->border_width > 0)
1413 {
1414 if (FRAME_VISIBLE_P (f))
1415 redraw_frame (f);
1416 }
1417 }
1418
1419 /* Set the border-color of frame F to value described by ARG.
1420 ARG can be a string naming a color.
1421 The border-color is used for the border that is drawn by the server.
1422 Note that this does not fully take effect if done before
1423 F has a window; it must be redone when the window is created. */
1424
1425 void
1426 x_set_border_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
1427 {
1428 int pix;
1429
1430 CHECK_STRING (arg);
1431 pix = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
1432 x_set_border_pixel (f, pix);
1433 update_face_from_frame_parameter (f, Qborder_color, arg);
1434 }
1435
1436
1437 void
1438 x_set_cursor_type (FRAME_PTR f, Lisp_Object arg, Lisp_Object oldval)
1439 {
1440 set_frame_cursor_types (f, arg);
1441
1442 /* Make sure the cursor gets redrawn. */
1443 cursor_type_changed = 1;
1444 }
1445 \f
1446 void
1447 x_set_icon_type (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
1448 {
1449 int result;
1450
1451 if (NILP (arg) && NILP (oldval))
1452 return;
1453
1454 if (STRINGP (arg) && STRINGP (oldval)
1455 && EQ (Fstring_equal (oldval, arg), Qt))
1456 return;
1457
1458 if (SYMBOLP (arg) && SYMBOLP (oldval) && EQ (arg, oldval))
1459 return;
1460
1461 block_input ();
1462
1463 result = x_bitmap_icon (f, arg);
1464 if (result)
1465 {
1466 unblock_input ();
1467 error ("No icon window available");
1468 }
1469
1470 unblock_input ();
1471 }
1472
1473 void
1474 x_set_icon_name (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
1475 {
1476 if (STRINGP (arg))
1477 {
1478 if (STRINGP (oldval) && EQ (Fstring_equal (oldval, arg), Qt))
1479 return;
1480 }
1481 else if (!NILP (arg) || NILP (oldval))
1482 return;
1483
1484 fset_icon_name (f, arg);
1485
1486 #if 0
1487 if (f->output_data.w32->icon_bitmap != 0)
1488 return;
1489
1490 block_input ();
1491
1492 result = x_text_icon (f,
1493 SSDATA ((!NILP (f->icon_name)
1494 ? f->icon_name
1495 : !NILP (f->title)
1496 ? f->title
1497 : f->name)));
1498
1499 if (result)
1500 {
1501 unblock_input ();
1502 error ("No icon window available");
1503 }
1504
1505 /* If the window was unmapped (and its icon was mapped),
1506 the new icon is not mapped, so map the window in its stead. */
1507 if (FRAME_VISIBLE_P (f))
1508 {
1509 #ifdef USE_X_TOOLKIT
1510 XtPopup (f->output_data.w32->widget, XtGrabNone);
1511 #endif
1512 XMapWindow (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f));
1513 }
1514
1515 XFlush (FRAME_W32_DISPLAY (f));
1516 unblock_input ();
1517 #endif
1518 }
1519
1520 \f
1521 void
1522 x_set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
1523 {
1524 int nlines;
1525
1526 /* Right now, menu bars don't work properly in minibuf-only frames;
1527 most of the commands try to apply themselves to the minibuffer
1528 frame itself, and get an error because you can't switch buffers
1529 in or split the minibuffer window. */
1530 if (FRAME_MINIBUF_ONLY_P (f))
1531 return;
1532
1533 if (INTEGERP (value))
1534 nlines = XINT (value);
1535 else
1536 nlines = 0;
1537
1538 FRAME_MENU_BAR_LINES (f) = 0;
1539 if (nlines)
1540 FRAME_EXTERNAL_MENU_BAR (f) = 1;
1541 else
1542 {
1543 if (FRAME_EXTERNAL_MENU_BAR (f) == 1)
1544 free_frame_menubar (f);
1545 FRAME_EXTERNAL_MENU_BAR (f) = 0;
1546
1547 /* Adjust the frame size so that the client (text) dimensions
1548 remain the same. This depends on FRAME_EXTERNAL_MENU_BAR being
1549 set correctly. */
1550 x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f));
1551 do_pending_window_change (0);
1552 }
1553 adjust_glyphs (f);
1554 }
1555
1556
1557 /* Set the number of lines used for the tool bar of frame F to VALUE.
1558 VALUE not an integer, or < 0 means set the lines to zero. OLDVAL
1559 is the old number of tool bar lines. This function changes the
1560 height of all windows on frame F to match the new tool bar height.
1561 The frame's height doesn't change. */
1562
1563 void
1564 x_set_tool_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
1565 {
1566 int delta, nlines, root_height;
1567 Lisp_Object root_window;
1568
1569 /* Treat tool bars like menu bars. */
1570 if (FRAME_MINIBUF_ONLY_P (f))
1571 return;
1572
1573 /* Use VALUE only if an integer >= 0. */
1574 if (INTEGERP (value) && XINT (value) >= 0)
1575 nlines = XFASTINT (value);
1576 else
1577 nlines = 0;
1578
1579 /* Make sure we redisplay all windows in this frame. */
1580 ++windows_or_buffers_changed;
1581
1582 delta = nlines - FRAME_TOOL_BAR_LINES (f);
1583
1584 /* Don't resize the tool-bar to more than we have room for. */
1585 root_window = FRAME_ROOT_WINDOW (f);
1586 root_height = WINDOW_TOTAL_LINES (XWINDOW (root_window));
1587 if (root_height - delta < 1)
1588 {
1589 delta = root_height - 1;
1590 nlines = FRAME_TOOL_BAR_LINES (f) + delta;
1591 }
1592
1593 FRAME_TOOL_BAR_LINES (f) = nlines;
1594 resize_frame_windows (f, FRAME_LINES (f), 0);
1595 adjust_glyphs (f);
1596
1597 /* We also have to make sure that the internal border at the top of
1598 the frame, below the menu bar or tool bar, is redrawn when the
1599 tool bar disappears. This is so because the internal border is
1600 below the tool bar if one is displayed, but is below the menu bar
1601 if there isn't a tool bar. The tool bar draws into the area
1602 below the menu bar. */
1603 if (FRAME_W32_WINDOW (f) && FRAME_TOOL_BAR_LINES (f) == 0)
1604 {
1605 clear_frame (f);
1606 clear_current_matrices (f);
1607 }
1608
1609 /* If the tool bar gets smaller, the internal border below it
1610 has to be cleared. It was formerly part of the display
1611 of the larger tool bar, and updating windows won't clear it. */
1612 if (delta < 0)
1613 {
1614 int height = FRAME_INTERNAL_BORDER_WIDTH (f);
1615 int width = FRAME_PIXEL_WIDTH (f);
1616 int y = nlines * FRAME_LINE_HEIGHT (f);
1617
1618 block_input ();
1619 {
1620 HDC hdc = get_frame_dc (f);
1621 w32_clear_area (f, hdc, 0, y, width, height);
1622 release_frame_dc (f, hdc);
1623 }
1624 unblock_input ();
1625
1626 if (WINDOWP (f->tool_bar_window))
1627 clear_glyph_matrix (XWINDOW (f->tool_bar_window)->current_matrix);
1628 }
1629
1630 run_window_configuration_change_hook (f);
1631
1632 }
1633
1634
1635 /* Change the name of frame F to NAME. If NAME is nil, set F's name to
1636 w32_id_name.
1637
1638 If EXPLICIT is non-zero, that indicates that lisp code is setting the
1639 name; if NAME is a string, set F's name to NAME and set
1640 F->explicit_name; if NAME is Qnil, then clear F->explicit_name.
1641
1642 If EXPLICIT is zero, that indicates that Emacs redisplay code is
1643 suggesting a new name, which lisp code should override; if
1644 F->explicit_name is set, ignore the new name; otherwise, set it. */
1645
1646 void
1647 x_set_name (struct frame *f, Lisp_Object name, int explicit)
1648 {
1649 /* Make sure that requests from lisp code override requests from
1650 Emacs redisplay code. */
1651 if (explicit)
1652 {
1653 /* If we're switching from explicit to implicit, we had better
1654 update the mode lines and thereby update the title. */
1655 if (f->explicit_name && NILP (name))
1656 update_mode_lines = 1;
1657
1658 f->explicit_name = ! NILP (name);
1659 }
1660 else if (f->explicit_name)
1661 return;
1662
1663 /* If NAME is nil, set the name to the w32_id_name. */
1664 if (NILP (name))
1665 {
1666 /* Check for no change needed in this very common case
1667 before we do any consing. */
1668 if (!strcmp (FRAME_W32_DISPLAY_INFO (f)->w32_id_name,
1669 SDATA (f->name)))
1670 return;
1671 name = build_string (FRAME_W32_DISPLAY_INFO (f)->w32_id_name);
1672 }
1673 else
1674 CHECK_STRING (name);
1675
1676 /* Don't change the name if it's already NAME. */
1677 if (! NILP (Fstring_equal (name, f->name)))
1678 return;
1679
1680 fset_name (f, name);
1681
1682 /* For setting the frame title, the title parameter should override
1683 the name parameter. */
1684 if (! NILP (f->title))
1685 name = f->title;
1686
1687 if (FRAME_W32_WINDOW (f))
1688 {
1689 block_input ();
1690 GUI_FN (SetWindowText) (FRAME_W32_WINDOW (f),
1691 GUI_SDATA (GUI_ENCODE_SYSTEM (name)));
1692 unblock_input ();
1693 }
1694 }
1695
1696 /* This function should be called when the user's lisp code has
1697 specified a name for the frame; the name will override any set by the
1698 redisplay code. */
1699 void
1700 x_explicitly_set_name (FRAME_PTR f, Lisp_Object arg, Lisp_Object oldval)
1701 {
1702 x_set_name (f, arg, 1);
1703 }
1704
1705 /* This function should be called by Emacs redisplay code to set the
1706 name; names set this way will never override names set by the user's
1707 lisp code. */
1708 void
1709 x_implicitly_set_name (FRAME_PTR f, Lisp_Object arg, Lisp_Object oldval)
1710 {
1711 x_set_name (f, arg, 0);
1712 }
1713 \f
1714 /* Change the title of frame F to NAME.
1715 If NAME is nil, use the frame name as the title. */
1716
1717 void
1718 x_set_title (struct frame *f, Lisp_Object name, Lisp_Object old_name)
1719 {
1720 /* Don't change the title if it's already NAME. */
1721 if (EQ (name, f->title))
1722 return;
1723
1724 update_mode_lines = 1;
1725
1726 fset_title (f, name);
1727
1728 if (NILP (name))
1729 name = f->name;
1730
1731 if (FRAME_W32_WINDOW (f))
1732 {
1733 block_input ();
1734 GUI_FN (SetWindowText) (FRAME_W32_WINDOW (f),
1735 GUI_SDATA (GUI_ENCODE_SYSTEM (name)));
1736 unblock_input ();
1737 }
1738 }
1739
1740 void
1741 x_set_scroll_bar_default_width (struct frame *f)
1742 {
1743 int wid = FRAME_COLUMN_WIDTH (f);
1744
1745 FRAME_CONFIG_SCROLL_BAR_WIDTH (f) = GetSystemMetrics (SM_CXVSCROLL);
1746 FRAME_CONFIG_SCROLL_BAR_COLS (f) = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) +
1747 wid - 1) / wid;
1748 }
1749
1750 \f
1751 /* Subroutines for creating a frame. */
1752
1753 Cursor
1754 w32_load_cursor (LPCTSTR name)
1755 {
1756 /* Try first to load cursor from application resource. */
1757 Cursor cursor = LoadImage ((HINSTANCE) GetModuleHandle (NULL),
1758 name, IMAGE_CURSOR, 0, 0,
1759 LR_DEFAULTCOLOR | LR_DEFAULTSIZE | LR_SHARED);
1760 if (!cursor)
1761 {
1762 /* Then try to load a shared predefined cursor. */
1763 cursor = LoadImage (NULL, name, IMAGE_CURSOR, 0, 0,
1764 LR_DEFAULTCOLOR | LR_DEFAULTSIZE | LR_SHARED);
1765 }
1766 return cursor;
1767 }
1768
1769 static LRESULT CALLBACK w32_wnd_proc (HWND, UINT, WPARAM, LPARAM);
1770
1771 #define INIT_WINDOW_CLASS(WC) \
1772 (WC).style = CS_HREDRAW | CS_VREDRAW; \
1773 (WC).lpfnWndProc = (WNDPROC) w32_wnd_proc; \
1774 (WC).cbClsExtra = 0; \
1775 (WC).cbWndExtra = WND_EXTRA_BYTES; \
1776 (WC).hInstance = hinst; \
1777 (WC).hIcon = LoadIcon (hinst, EMACS_CLASS); \
1778 (WC).hCursor = w32_load_cursor (IDC_ARROW); \
1779 (WC).hbrBackground = NULL; \
1780 (WC).lpszMenuName = NULL; \
1781
1782 static BOOL
1783 w32_init_class (HINSTANCE hinst)
1784 {
1785 if (w32_unicode_gui)
1786 {
1787 WNDCLASSW uwc;
1788 INIT_WINDOW_CLASS(uwc);
1789 uwc.lpszClassName = L"Emacs";
1790
1791 return RegisterClassW (&uwc);
1792 }
1793 else
1794 {
1795 WNDCLASS wc;
1796 INIT_WINDOW_CLASS(wc);
1797 wc.lpszClassName = EMACS_CLASS;
1798
1799 return RegisterClassA (&wc);
1800 }
1801 }
1802
1803 static HWND
1804 w32_createscrollbar (struct frame *f, struct scroll_bar * bar)
1805 {
1806 return (CreateWindow ("SCROLLBAR", "", SBS_VERT | WS_CHILD | WS_VISIBLE,
1807 /* Position and size of scroll bar. */
1808 XINT (bar->left) + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
1809 XINT (bar->top),
1810 XINT (bar->width) - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
1811 XINT (bar->height),
1812 FRAME_W32_WINDOW (f),
1813 NULL,
1814 hinst,
1815 NULL));
1816 }
1817
1818 static void
1819 w32_createwindow (struct frame *f)
1820 {
1821 HWND hwnd;
1822 RECT rect;
1823 Lisp_Object top = Qunbound;
1824 Lisp_Object left = Qunbound;
1825 struct w32_display_info *dpyinfo = &one_w32_display_info;
1826
1827 rect.left = rect.top = 0;
1828 rect.right = FRAME_PIXEL_WIDTH (f);
1829 rect.bottom = FRAME_PIXEL_HEIGHT (f);
1830
1831 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
1832 FRAME_EXTERNAL_MENU_BAR (f));
1833
1834 /* Do first time app init */
1835
1836 w32_init_class (hinst);
1837
1838 if (f->size_hint_flags & USPosition || f->size_hint_flags & PPosition)
1839 {
1840 XSETINT (left, f->left_pos);
1841 XSETINT (top, f->top_pos);
1842 }
1843 else if (EQ (left, Qunbound) && EQ (top, Qunbound))
1844 {
1845 /* When called with RES_TYPE_NUMBER, w32_get_arg will return zero
1846 for anything that is not a number and is not Qunbound. */
1847 left = x_get_arg (dpyinfo, Qnil, Qleft, "left", "Left", RES_TYPE_NUMBER);
1848 top = x_get_arg (dpyinfo, Qnil, Qtop, "top", "Top", RES_TYPE_NUMBER);
1849 }
1850
1851 FRAME_W32_WINDOW (f) = hwnd
1852 = CreateWindow (EMACS_CLASS,
1853 f->namebuf,
1854 f->output_data.w32->dwStyle | WS_CLIPCHILDREN,
1855 EQ (left, Qunbound) ? CW_USEDEFAULT : XINT (left),
1856 EQ (top, Qunbound) ? CW_USEDEFAULT : XINT (top),
1857 rect.right - rect.left,
1858 rect.bottom - rect.top,
1859 NULL,
1860 NULL,
1861 hinst,
1862 NULL);
1863
1864 if (hwnd)
1865 {
1866 SetWindowLong (hwnd, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
1867 SetWindowLong (hwnd, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
1868 SetWindowLong (hwnd, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
1869 SetWindowLong (hwnd, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
1870 SetWindowLong (hwnd, WND_BACKGROUND_INDEX, FRAME_BACKGROUND_PIXEL (f));
1871
1872 /* Enable drag-n-drop. */
1873 DragAcceptFiles (hwnd, TRUE);
1874
1875 /* Do this to discard the default setting specified by our parent. */
1876 ShowWindow (hwnd, SW_HIDE);
1877
1878 /* Update frame positions. */
1879 GetWindowRect (hwnd, &rect);
1880 f->left_pos = rect.left;
1881 f->top_pos = rect.top;
1882 }
1883 }
1884
1885 static void
1886 my_post_msg (W32Msg * wmsg, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
1887 {
1888 wmsg->msg.hwnd = hwnd;
1889 wmsg->msg.message = msg;
1890 wmsg->msg.wParam = wParam;
1891 wmsg->msg.lParam = lParam;
1892 wmsg->msg.time = GetMessageTime ();
1893
1894 post_msg (wmsg);
1895 }
1896
1897 /* GetKeyState and MapVirtualKey on Windows 95 do not actually distinguish
1898 between left and right keys as advertised. We test for this
1899 support dynamically, and set a flag when the support is absent. If
1900 absent, we keep track of the left and right control and alt keys
1901 ourselves. This is particularly necessary on keyboards that rely
1902 upon the AltGr key, which is represented as having the left control
1903 and right alt keys pressed. For these keyboards, we need to know
1904 when the left alt key has been pressed in addition to the AltGr key
1905 so that we can properly support M-AltGr-key sequences (such as M-@
1906 on Swedish keyboards). */
1907
1908 #define EMACS_LCONTROL 0
1909 #define EMACS_RCONTROL 1
1910 #define EMACS_LMENU 2
1911 #define EMACS_RMENU 3
1912
1913 static int modifiers[4];
1914 static int modifiers_recorded;
1915 static int modifier_key_support_tested;
1916
1917 static void
1918 test_modifier_support (unsigned int wparam)
1919 {
1920 unsigned int l, r;
1921
1922 if (wparam != VK_CONTROL && wparam != VK_MENU)
1923 return;
1924 if (wparam == VK_CONTROL)
1925 {
1926 l = VK_LCONTROL;
1927 r = VK_RCONTROL;
1928 }
1929 else
1930 {
1931 l = VK_LMENU;
1932 r = VK_RMENU;
1933 }
1934 if (!(GetKeyState (l) & 0x8000) && !(GetKeyState (r) & 0x8000))
1935 modifiers_recorded = 1;
1936 else
1937 modifiers_recorded = 0;
1938 modifier_key_support_tested = 1;
1939 }
1940
1941 static void
1942 record_keydown (unsigned int wparam, unsigned int lparam)
1943 {
1944 int i;
1945
1946 if (!modifier_key_support_tested)
1947 test_modifier_support (wparam);
1948
1949 if ((wparam != VK_CONTROL && wparam != VK_MENU) || !modifiers_recorded)
1950 return;
1951
1952 if (wparam == VK_CONTROL)
1953 i = (lparam & 0x1000000) ? EMACS_RCONTROL : EMACS_LCONTROL;
1954 else
1955 i = (lparam & 0x1000000) ? EMACS_RMENU : EMACS_LMENU;
1956
1957 modifiers[i] = 1;
1958 }
1959
1960 static void
1961 record_keyup (unsigned int wparam, unsigned int lparam)
1962 {
1963 int i;
1964
1965 if ((wparam != VK_CONTROL && wparam != VK_MENU) || !modifiers_recorded)
1966 return;
1967
1968 if (wparam == VK_CONTROL)
1969 i = (lparam & 0x1000000) ? EMACS_RCONTROL : EMACS_LCONTROL;
1970 else
1971 i = (lparam & 0x1000000) ? EMACS_RMENU : EMACS_LMENU;
1972
1973 modifiers[i] = 0;
1974 }
1975
1976 /* Emacs can lose focus while a modifier key has been pressed. When
1977 it regains focus, be conservative and clear all modifiers since
1978 we cannot reconstruct the left and right modifier state. */
1979 static void
1980 reset_modifiers (void)
1981 {
1982 SHORT ctrl, alt;
1983
1984 if (GetFocus () == NULL)
1985 /* Emacs doesn't have keyboard focus. Do nothing. */
1986 return;
1987
1988 ctrl = GetAsyncKeyState (VK_CONTROL);
1989 alt = GetAsyncKeyState (VK_MENU);
1990
1991 if (!(ctrl & 0x08000))
1992 /* Clear any recorded control modifier state. */
1993 modifiers[EMACS_RCONTROL] = modifiers[EMACS_LCONTROL] = 0;
1994
1995 if (!(alt & 0x08000))
1996 /* Clear any recorded alt modifier state. */
1997 modifiers[EMACS_RMENU] = modifiers[EMACS_LMENU] = 0;
1998
1999 /* Update the state of all modifier keys, because modifiers used in
2000 hot-key combinations can get stuck on if Emacs loses focus as a
2001 result of a hot-key being pressed. */
2002 {
2003 BYTE keystate[256];
2004
2005 #define CURRENT_STATE(key) ((GetAsyncKeyState (key) & 0x8000) >> 8)
2006
2007 GetKeyboardState (keystate);
2008 keystate[VK_SHIFT] = CURRENT_STATE (VK_SHIFT);
2009 keystate[VK_CONTROL] = CURRENT_STATE (VK_CONTROL);
2010 keystate[VK_LCONTROL] = CURRENT_STATE (VK_LCONTROL);
2011 keystate[VK_RCONTROL] = CURRENT_STATE (VK_RCONTROL);
2012 keystate[VK_MENU] = CURRENT_STATE (VK_MENU);
2013 keystate[VK_LMENU] = CURRENT_STATE (VK_LMENU);
2014 keystate[VK_RMENU] = CURRENT_STATE (VK_RMENU);
2015 keystate[VK_LWIN] = CURRENT_STATE (VK_LWIN);
2016 keystate[VK_RWIN] = CURRENT_STATE (VK_RWIN);
2017 keystate[VK_APPS] = CURRENT_STATE (VK_APPS);
2018 SetKeyboardState (keystate);
2019 }
2020 }
2021
2022 /* Synchronize modifier state with what is reported with the current
2023 keystroke. Even if we cannot distinguish between left and right
2024 modifier keys, we know that, if no modifiers are set, then neither
2025 the left or right modifier should be set. */
2026 static void
2027 sync_modifiers (void)
2028 {
2029 if (!modifiers_recorded)
2030 return;
2031
2032 if (!(GetKeyState (VK_CONTROL) & 0x8000))
2033 modifiers[EMACS_RCONTROL] = modifiers[EMACS_LCONTROL] = 0;
2034
2035 if (!(GetKeyState (VK_MENU) & 0x8000))
2036 modifiers[EMACS_RMENU] = modifiers[EMACS_LMENU] = 0;
2037 }
2038
2039 static int
2040 modifier_set (int vkey)
2041 {
2042 /* Warning: The fact that VK_NUMLOCK is not treated as the other 2
2043 toggle keys is not an omission! If you want to add it, you will
2044 have to make changes in the default sub-case of the WM_KEYDOWN
2045 switch, because if the NUMLOCK modifier is set, the code there
2046 will directly convert any key that looks like an ASCII letter,
2047 and also downcase those that look like upper-case ASCII. */
2048 if (vkey == VK_CAPITAL)
2049 {
2050 if (NILP (Vw32_enable_caps_lock))
2051 return 0;
2052 else
2053 return (GetKeyState (vkey) & 0x1);
2054 }
2055 if (vkey == VK_SCROLL)
2056 {
2057 if (NILP (Vw32_scroll_lock_modifier)
2058 /* w32-scroll-lock-modifier can be any non-nil value that is
2059 not one of the modifiers, in which case it shall be ignored. */
2060 || !( EQ (Vw32_scroll_lock_modifier, Qhyper)
2061 || EQ (Vw32_scroll_lock_modifier, Qsuper)
2062 || EQ (Vw32_scroll_lock_modifier, Qmeta)
2063 || EQ (Vw32_scroll_lock_modifier, Qalt)
2064 || EQ (Vw32_scroll_lock_modifier, Qcontrol)
2065 || EQ (Vw32_scroll_lock_modifier, Qshift)))
2066 return 0;
2067 else
2068 return (GetKeyState (vkey) & 0x1);
2069 }
2070
2071 if (!modifiers_recorded)
2072 return (GetKeyState (vkey) & 0x8000);
2073
2074 switch (vkey)
2075 {
2076 case VK_LCONTROL:
2077 return modifiers[EMACS_LCONTROL];
2078 case VK_RCONTROL:
2079 return modifiers[EMACS_RCONTROL];
2080 case VK_LMENU:
2081 return modifiers[EMACS_LMENU];
2082 case VK_RMENU:
2083 return modifiers[EMACS_RMENU];
2084 }
2085 return (GetKeyState (vkey) & 0x8000);
2086 }
2087
2088 /* Convert between the modifier bits W32 uses and the modifier bits
2089 Emacs uses. */
2090
2091 unsigned int
2092 w32_key_to_modifier (int key)
2093 {
2094 Lisp_Object key_mapping;
2095
2096 switch (key)
2097 {
2098 case VK_LWIN:
2099 key_mapping = Vw32_lwindow_modifier;
2100 break;
2101 case VK_RWIN:
2102 key_mapping = Vw32_rwindow_modifier;
2103 break;
2104 case VK_APPS:
2105 key_mapping = Vw32_apps_modifier;
2106 break;
2107 case VK_SCROLL:
2108 key_mapping = Vw32_scroll_lock_modifier;
2109 break;
2110 default:
2111 key_mapping = Qnil;
2112 }
2113
2114 /* NB. This code runs in the input thread, asynchronously to the lisp
2115 thread, so we must be careful to ensure access to lisp data is
2116 thread-safe. The following code is safe because the modifier
2117 variable values are updated atomically from lisp and symbols are
2118 not relocated by GC. Also, we don't have to worry about seeing GC
2119 markbits here. */
2120 if (EQ (key_mapping, Qhyper))
2121 return hyper_modifier;
2122 if (EQ (key_mapping, Qsuper))
2123 return super_modifier;
2124 if (EQ (key_mapping, Qmeta))
2125 return meta_modifier;
2126 if (EQ (key_mapping, Qalt))
2127 return alt_modifier;
2128 if (EQ (key_mapping, Qctrl))
2129 return ctrl_modifier;
2130 if (EQ (key_mapping, Qcontrol)) /* synonym for ctrl */
2131 return ctrl_modifier;
2132 if (EQ (key_mapping, Qshift))
2133 return shift_modifier;
2134
2135 /* Don't generate any modifier if not explicitly requested. */
2136 return 0;
2137 }
2138
2139 static unsigned int
2140 w32_get_modifiers (void)
2141 {
2142 return ((modifier_set (VK_SHIFT) ? shift_modifier : 0) |
2143 (modifier_set (VK_CONTROL) ? ctrl_modifier : 0) |
2144 (modifier_set (VK_LWIN) ? w32_key_to_modifier (VK_LWIN) : 0) |
2145 (modifier_set (VK_RWIN) ? w32_key_to_modifier (VK_RWIN) : 0) |
2146 (modifier_set (VK_APPS) ? w32_key_to_modifier (VK_APPS) : 0) |
2147 (modifier_set (VK_SCROLL) ? w32_key_to_modifier (VK_SCROLL) : 0) |
2148 (modifier_set (VK_MENU) ?
2149 ((NILP (Vw32_alt_is_meta)) ? alt_modifier : meta_modifier) : 0));
2150 }
2151
2152 /* We map the VK_* modifiers into console modifier constants
2153 so that we can use the same routines to handle both console
2154 and window input. */
2155
2156 static int
2157 construct_console_modifiers (void)
2158 {
2159 int mods;
2160
2161 mods = 0;
2162 mods |= (modifier_set (VK_SHIFT)) ? SHIFT_PRESSED : 0;
2163 mods |= (modifier_set (VK_CAPITAL)) ? CAPSLOCK_ON : 0;
2164 mods |= (modifier_set (VK_SCROLL)) ? SCROLLLOCK_ON : 0;
2165 mods |= (modifier_set (VK_NUMLOCK)) ? NUMLOCK_ON : 0;
2166 mods |= (modifier_set (VK_LCONTROL)) ? LEFT_CTRL_PRESSED : 0;
2167 mods |= (modifier_set (VK_RCONTROL)) ? RIGHT_CTRL_PRESSED : 0;
2168 mods |= (modifier_set (VK_LMENU)) ? LEFT_ALT_PRESSED : 0;
2169 mods |= (modifier_set (VK_RMENU)) ? RIGHT_ALT_PRESSED : 0;
2170 mods |= (modifier_set (VK_LWIN)) ? LEFT_WIN_PRESSED : 0;
2171 mods |= (modifier_set (VK_RWIN)) ? RIGHT_WIN_PRESSED : 0;
2172 mods |= (modifier_set (VK_APPS)) ? APPS_PRESSED : 0;
2173
2174 return mods;
2175 }
2176
2177 static int
2178 w32_get_key_modifiers (unsigned int wparam, unsigned int lparam)
2179 {
2180 int mods;
2181
2182 /* Convert to emacs modifiers. */
2183 mods = w32_kbd_mods_to_emacs (construct_console_modifiers (), wparam);
2184
2185 return mods;
2186 }
2187
2188 unsigned int
2189 map_keypad_keys (unsigned int virt_key, unsigned int extended)
2190 {
2191 if (virt_key < VK_CLEAR || virt_key > VK_DELETE)
2192 return virt_key;
2193
2194 if (virt_key == VK_RETURN)
2195 return (extended ? VK_NUMPAD_ENTER : VK_RETURN);
2196
2197 if (virt_key >= VK_PRIOR && virt_key <= VK_DOWN)
2198 return (!extended ? (VK_NUMPAD_PRIOR + (virt_key - VK_PRIOR)) : virt_key);
2199
2200 if (virt_key == VK_INSERT || virt_key == VK_DELETE)
2201 return (!extended ? (VK_NUMPAD_INSERT + (virt_key - VK_INSERT)) : virt_key);
2202
2203 if (virt_key == VK_CLEAR)
2204 return (!extended ? VK_NUMPAD_CLEAR : virt_key);
2205
2206 return virt_key;
2207 }
2208
2209 /* List of special key combinations which w32 would normally capture,
2210 but Emacs should grab instead. Not directly visible to lisp, to
2211 simplify synchronization. Each item is an integer encoding a virtual
2212 key code and modifier combination to capture. */
2213 static Lisp_Object w32_grabbed_keys;
2214
2215 #define HOTKEY(vk, mods) make_number (((vk) & 255) | ((mods) << 8))
2216 #define HOTKEY_ID(k) (XFASTINT (k) & 0xbfff)
2217 #define HOTKEY_VK_CODE(k) (XFASTINT (k) & 255)
2218 #define HOTKEY_MODIFIERS(k) (XFASTINT (k) >> 8)
2219
2220 #define RAW_HOTKEY_ID(k) ((k) & 0xbfff)
2221 #define RAW_HOTKEY_VK_CODE(k) ((k) & 255)
2222 #define RAW_HOTKEY_MODIFIERS(k) ((k) >> 8)
2223
2224 /* Register hot-keys for reserved key combinations when Emacs has
2225 keyboard focus, since this is the only way Emacs can receive key
2226 combinations like Alt-Tab which are used by the system. */
2227
2228 static void
2229 register_hot_keys (HWND hwnd)
2230 {
2231 Lisp_Object keylist;
2232
2233 /* Use CONSP, since we are called asynchronously. */
2234 for (keylist = w32_grabbed_keys; CONSP (keylist); keylist = XCDR (keylist))
2235 {
2236 Lisp_Object key = XCAR (keylist);
2237
2238 /* Deleted entries get set to nil. */
2239 if (!INTEGERP (key))
2240 continue;
2241
2242 RegisterHotKey (hwnd, HOTKEY_ID (key),
2243 HOTKEY_MODIFIERS (key), HOTKEY_VK_CODE (key));
2244 }
2245 }
2246
2247 static void
2248 unregister_hot_keys (HWND hwnd)
2249 {
2250 Lisp_Object keylist;
2251
2252 for (keylist = w32_grabbed_keys; CONSP (keylist); keylist = XCDR (keylist))
2253 {
2254 Lisp_Object key = XCAR (keylist);
2255
2256 if (!INTEGERP (key))
2257 continue;
2258
2259 UnregisterHotKey (hwnd, HOTKEY_ID (key));
2260 }
2261 }
2262
2263 #if EMACSDEBUG
2264 const char*
2265 w32_name_of_message (UINT msg)
2266 {
2267 unsigned i;
2268 static char buf[64];
2269 static const struct {
2270 UINT msg;
2271 const char* name;
2272 } msgnames[] = {
2273 #define M(msg) { msg, # msg }
2274 M (WM_PAINT),
2275 M (WM_TIMER),
2276 M (WM_USER),
2277 M (WM_MOUSEMOVE),
2278 M (WM_LBUTTONUP),
2279 M (WM_KEYDOWN),
2280 M (WM_EMACS_KILL),
2281 M (WM_EMACS_CREATEWINDOW),
2282 M (WM_EMACS_DONE),
2283 M (WM_EMACS_CREATESCROLLBAR),
2284 M (WM_EMACS_SHOWWINDOW),
2285 M (WM_EMACS_SETWINDOWPOS),
2286 M (WM_EMACS_DESTROYWINDOW),
2287 M (WM_EMACS_TRACKPOPUPMENU),
2288 M (WM_EMACS_SETFOCUS),
2289 M (WM_EMACS_SETFOREGROUND),
2290 M (WM_EMACS_SETLOCALE),
2291 M (WM_EMACS_SETKEYBOARDLAYOUT),
2292 M (WM_EMACS_REGISTER_HOT_KEY),
2293 M (WM_EMACS_UNREGISTER_HOT_KEY),
2294 M (WM_EMACS_TOGGLE_LOCK_KEY),
2295 M (WM_EMACS_TRACK_CARET),
2296 M (WM_EMACS_DESTROY_CARET),
2297 M (WM_EMACS_SHOW_CARET),
2298 M (WM_EMACS_HIDE_CARET),
2299 M (WM_EMACS_SETCURSOR),
2300 M (WM_EMACS_PAINT),
2301 M (WM_CHAR),
2302 #undef M
2303 { 0, 0 }
2304 };
2305
2306 for (i = 0; msgnames[i].name; ++i)
2307 if (msgnames[i].msg == msg)
2308 return msgnames[i].name;
2309
2310 sprintf (buf, "message 0x%04x", (unsigned)msg);
2311 return buf;
2312 }
2313 #endif /* EMACSDEBUG */
2314
2315 /* Here's an overview of how Emacs input works in GUI sessions on
2316 MS-Windows. (For description of non-GUI input, see the commentary
2317 before w32_console_read_socket in w32inevt.c.)
2318
2319 System messages are read and processed by w32_msg_pump below. This
2320 function runs in a separate thread. It handles a small number of
2321 custom WM_EMACS_* messages (posted by the main thread, look for
2322 PostMessage calls), and dispatches the rest to w32_wnd_proc, which
2323 is the main window procedure for the entire Emacs application.
2324
2325 w32_wnd_proc also runs in the same separate input thread. It
2326 handles some messages, mostly those that need GDI calls, by itself.
2327 For the others, it calls my_post_msg, which inserts the messages
2328 into the input queue serviced by w32_read_socket.
2329
2330 w32_read_socket runs in the main (a.k.a. "Lisp") thread, and is
2331 called synchronously from keyboard.c when it is known or suspected
2332 that some input is available. w32_read_socket either handles
2333 messages immediately, or converts them into Emacs input events and
2334 stuffs them into kbd_buffer, where kbd_buffer_get_event can get at
2335 them and process them when read_char and its callers require
2336 input.
2337
2338 Under Cygwin with the W32 toolkit, the use of /dev/windows with
2339 select(2) takes the place of w32_read_socket.
2340
2341 */
2342
2343 /* Main message dispatch loop. */
2344
2345 static void
2346 w32_msg_pump (deferred_msg * msg_buf)
2347 {
2348 MSG msg;
2349 WPARAM result;
2350 HWND focus_window;
2351
2352 msh_mousewheel = RegisterWindowMessage (MSH_MOUSEWHEEL);
2353
2354 while ((w32_unicode_gui ? GetMessageW : GetMessageA) (&msg, NULL, 0, 0))
2355 {
2356
2357 /* DebPrint (("w32_msg_pump: %s time:%u\n", */
2358 /* w32_name_of_message (msg.message), msg.time)); */
2359
2360 if (msg.hwnd == NULL)
2361 {
2362 switch (msg.message)
2363 {
2364 case WM_NULL:
2365 /* Produced by complete_deferred_msg; just ignore. */
2366 break;
2367 case WM_EMACS_CREATEWINDOW:
2368 /* Initialize COM for this window. Even though we don't use it,
2369 some third party shell extensions can cause it to be used in
2370 system dialogs, which causes a crash if it is not initialized.
2371 This is a known bug in Windows, which was fixed long ago, but
2372 the patch for XP is not publicly available until XP SP3,
2373 and older versions will never be patched. */
2374 CoInitialize (NULL);
2375 w32_createwindow ((struct frame *) msg.wParam);
2376 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE, 0, 0))
2377 emacs_abort ();
2378 break;
2379 case WM_EMACS_SETLOCALE:
2380 SetThreadLocale (msg.wParam);
2381 /* Reply is not expected. */
2382 break;
2383 case WM_EMACS_SETKEYBOARDLAYOUT:
2384 result = (WPARAM) ActivateKeyboardLayout ((HKL) msg.wParam, 0);
2385 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE,
2386 result, 0))
2387 emacs_abort ();
2388 break;
2389 case WM_EMACS_REGISTER_HOT_KEY:
2390 focus_window = GetFocus ();
2391 if (focus_window != NULL)
2392 RegisterHotKey (focus_window,
2393 RAW_HOTKEY_ID (msg.wParam),
2394 RAW_HOTKEY_MODIFIERS (msg.wParam),
2395 RAW_HOTKEY_VK_CODE (msg.wParam));
2396 /* Reply is not expected. */
2397 break;
2398 case WM_EMACS_UNREGISTER_HOT_KEY:
2399 focus_window = GetFocus ();
2400 if (focus_window != NULL)
2401 UnregisterHotKey (focus_window, RAW_HOTKEY_ID (msg.wParam));
2402 /* Mark item as erased. NB: this code must be
2403 thread-safe. The next line is okay because the cons
2404 cell is never made into garbage and is not relocated by
2405 GC. */
2406 XSETCAR (XIL ((EMACS_INT) msg.lParam), Qnil);
2407 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE, 0, 0))
2408 emacs_abort ();
2409 break;
2410 case WM_EMACS_TOGGLE_LOCK_KEY:
2411 {
2412 int vk_code = (int) msg.wParam;
2413 int cur_state = (GetKeyState (vk_code) & 1);
2414 Lisp_Object new_state = XIL ((EMACS_INT) msg.lParam);
2415
2416 /* NB: This code must be thread-safe. It is safe to
2417 call NILP because symbols are not relocated by GC,
2418 and pointer here is not touched by GC (so the markbit
2419 can't be set). Numbers are safe because they are
2420 immediate values. */
2421 if (NILP (new_state)
2422 || (NUMBERP (new_state)
2423 && ((XUINT (new_state)) & 1) != cur_state))
2424 {
2425 one_w32_display_info.faked_key = vk_code;
2426
2427 keybd_event ((BYTE) vk_code,
2428 (BYTE) MapVirtualKey (vk_code, 0),
2429 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
2430 keybd_event ((BYTE) vk_code,
2431 (BYTE) MapVirtualKey (vk_code, 0),
2432 KEYEVENTF_EXTENDEDKEY | 0, 0);
2433 keybd_event ((BYTE) vk_code,
2434 (BYTE) MapVirtualKey (vk_code, 0),
2435 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
2436 cur_state = !cur_state;
2437 }
2438 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE,
2439 cur_state, 0))
2440 emacs_abort ();
2441 }
2442 break;
2443 #ifdef MSG_DEBUG
2444 /* Broadcast messages make it here, so you need to be looking
2445 for something in particular for this to be useful. */
2446 default:
2447 DebPrint (("msg %x not expected by w32_msg_pump\n", msg.message));
2448 #endif
2449 }
2450 }
2451 else
2452 {
2453 if (w32_unicode_gui)
2454 DispatchMessageW (&msg);
2455 else
2456 DispatchMessageA (&msg);
2457 }
2458
2459 /* Exit nested loop when our deferred message has completed. */
2460 if (msg_buf->completed)
2461 break;
2462 }
2463 }
2464
2465 deferred_msg * deferred_msg_head;
2466
2467 static deferred_msg *
2468 find_deferred_msg (HWND hwnd, UINT msg)
2469 {
2470 deferred_msg * item;
2471
2472 /* Don't actually need synchronization for read access, since
2473 modification of single pointer is always atomic. */
2474 /* enter_crit (); */
2475
2476 for (item = deferred_msg_head; item != NULL; item = item->next)
2477 if (item->w32msg.msg.hwnd == hwnd
2478 && item->w32msg.msg.message == msg)
2479 break;
2480
2481 /* leave_crit (); */
2482
2483 return item;
2484 }
2485
2486 static LRESULT
2487 send_deferred_msg (deferred_msg * msg_buf,
2488 HWND hwnd,
2489 UINT msg,
2490 WPARAM wParam,
2491 LPARAM lParam)
2492 {
2493 /* Only input thread can send deferred messages. */
2494 if (GetCurrentThreadId () != dwWindowsThreadId)
2495 emacs_abort ();
2496
2497 /* It is an error to send a message that is already deferred. */
2498 if (find_deferred_msg (hwnd, msg) != NULL)
2499 emacs_abort ();
2500
2501 /* Enforced synchronization is not needed because this is the only
2502 function that alters deferred_msg_head, and the following critical
2503 section is guaranteed to only be serially reentered (since only the
2504 input thread can call us). */
2505
2506 /* enter_crit (); */
2507
2508 msg_buf->completed = 0;
2509 msg_buf->next = deferred_msg_head;
2510 deferred_msg_head = msg_buf;
2511 my_post_msg (&msg_buf->w32msg, hwnd, msg, wParam, lParam);
2512
2513 /* leave_crit (); */
2514
2515 /* Start a new nested message loop to process other messages until
2516 this one is completed. */
2517 w32_msg_pump (msg_buf);
2518
2519 deferred_msg_head = msg_buf->next;
2520
2521 return msg_buf->result;
2522 }
2523
2524 void
2525 complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result)
2526 {
2527 deferred_msg * msg_buf = find_deferred_msg (hwnd, msg);
2528
2529 if (msg_buf == NULL)
2530 /* Message may have been canceled, so don't abort. */
2531 return;
2532
2533 msg_buf->result = result;
2534 msg_buf->completed = 1;
2535
2536 /* Ensure input thread is woken so it notices the completion. */
2537 PostThreadMessage (dwWindowsThreadId, WM_NULL, 0, 0);
2538 }
2539
2540 static void
2541 cancel_all_deferred_msgs (void)
2542 {
2543 deferred_msg * item;
2544
2545 /* Don't actually need synchronization for read access, since
2546 modification of single pointer is always atomic. */
2547 /* enter_crit (); */
2548
2549 for (item = deferred_msg_head; item != NULL; item = item->next)
2550 {
2551 item->result = 0;
2552 item->completed = 1;
2553 }
2554
2555 /* leave_crit (); */
2556
2557 /* Ensure input thread is woken so it notices the completion. */
2558 PostThreadMessage (dwWindowsThreadId, WM_NULL, 0, 0);
2559 }
2560
2561 DWORD WINAPI
2562 w32_msg_worker (void *arg)
2563 {
2564 MSG msg;
2565 deferred_msg dummy_buf;
2566
2567 /* Ensure our message queue is created */
2568
2569 PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
2570
2571 if (!PostThreadMessage (dwMainThreadId, WM_EMACS_DONE, 0, 0))
2572 emacs_abort ();
2573
2574 memset (&dummy_buf, 0, sizeof (dummy_buf));
2575 dummy_buf.w32msg.msg.hwnd = NULL;
2576 dummy_buf.w32msg.msg.message = WM_NULL;
2577
2578 /* This is the initial message loop which should only exit when the
2579 application quits. */
2580 w32_msg_pump (&dummy_buf);
2581
2582 return 0;
2583 }
2584
2585 static void
2586 signal_user_input (void)
2587 {
2588 /* Interrupt any lisp that wants to be interrupted by input. */
2589 if (!NILP (Vthrow_on_input))
2590 {
2591 Vquit_flag = Vthrow_on_input;
2592 /* Doing a QUIT from this thread is a bad idea, since this
2593 unwinds the stack of the Lisp thread, and the Windows runtime
2594 rightfully barfs. Disabled. */
2595 #if 0
2596 /* If we're inside a function that wants immediate quits,
2597 do it now. */
2598 if (immediate_quit && NILP (Vinhibit_quit))
2599 {
2600 immediate_quit = 0;
2601 QUIT;
2602 }
2603 #endif
2604 }
2605 }
2606
2607
2608 static void
2609 post_character_message (HWND hwnd, UINT msg,
2610 WPARAM wParam, LPARAM lParam,
2611 DWORD modifiers)
2612 {
2613 W32Msg wmsg;
2614
2615 wmsg.dwModifiers = modifiers;
2616
2617 /* Detect quit_char and set quit-flag directly. Note that we
2618 still need to post a message to ensure the main thread will be
2619 woken up if blocked in sys_select, but we do NOT want to post
2620 the quit_char message itself (because it will usually be as if
2621 the user had typed quit_char twice). Instead, we post a dummy
2622 message that has no particular effect. */
2623 {
2624 int c = wParam;
2625 if (isalpha (c) && wmsg.dwModifiers == ctrl_modifier)
2626 c = make_ctrl_char (c) & 0377;
2627 if (c == quit_char
2628 || (wmsg.dwModifiers == 0
2629 && w32_quit_key && wParam == w32_quit_key))
2630 {
2631 Vquit_flag = Qt;
2632
2633 /* The choice of message is somewhat arbitrary, as long as
2634 the main thread handler just ignores it. */
2635 msg = WM_NULL;
2636
2637 /* Interrupt any blocking system calls. */
2638 signal_quit ();
2639
2640 /* As a safety precaution, forcibly complete any deferred
2641 messages. This is a kludge, but I don't see any particularly
2642 clean way to handle the situation where a deferred message is
2643 "dropped" in the lisp thread, and will thus never be
2644 completed, eg. by the user trying to activate the menubar
2645 when the lisp thread is busy, and then typing C-g when the
2646 menubar doesn't open promptly (with the result that the
2647 menubar never responds at all because the deferred
2648 WM_INITMENU message is never completed). Another problem
2649 situation is when the lisp thread calls SendMessage (to send
2650 a window manager command) when a message has been deferred;
2651 the lisp thread gets blocked indefinitely waiting for the
2652 deferred message to be completed, which itself is waiting for
2653 the lisp thread to respond.
2654
2655 Note that we don't want to block the input thread waiting for
2656 a response from the lisp thread (although that would at least
2657 solve the deadlock problem above), because we want to be able
2658 to receive C-g to interrupt the lisp thread. */
2659 cancel_all_deferred_msgs ();
2660 }
2661 else
2662 signal_user_input ();
2663 }
2664
2665 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
2666 }
2667
2668 /* Main window procedure */
2669
2670 static LRESULT CALLBACK
2671 w32_wnd_proc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
2672 {
2673 struct frame *f;
2674 struct w32_display_info *dpyinfo = &one_w32_display_info;
2675 W32Msg wmsg;
2676 int windows_translate;
2677 int key;
2678
2679 /* Note that it is okay to call x_window_to_frame, even though we are
2680 not running in the main lisp thread, because frame deletion
2681 requires the lisp thread to synchronize with this thread. Thus, if
2682 a frame struct is returned, it can be used without concern that the
2683 lisp thread might make it disappear while we are using it.
2684
2685 NB. Walking the frame list in this thread is safe (as long as
2686 writes of Lisp_Object slots are atomic, which they are on Windows).
2687 Although delete-frame can destructively modify the frame list while
2688 we are walking it, a garbage collection cannot occur until after
2689 delete-frame has synchronized with this thread.
2690
2691 It is also safe to use functions that make GDI calls, such as
2692 w32_clear_rect, because these functions must obtain a DC handle
2693 from the frame struct using get_frame_dc which is thread-aware. */
2694
2695 switch (msg)
2696 {
2697 case WM_ERASEBKGND:
2698 f = x_window_to_frame (dpyinfo, hwnd);
2699 if (f)
2700 {
2701 HDC hdc = get_frame_dc (f);
2702 GetUpdateRect (hwnd, &wmsg.rect, FALSE);
2703 w32_clear_rect (f, hdc, &wmsg.rect);
2704 release_frame_dc (f, hdc);
2705
2706 #if defined (W32_DEBUG_DISPLAY)
2707 DebPrint (("WM_ERASEBKGND (frame %p): erasing %d,%d-%d,%d\n",
2708 f,
2709 wmsg.rect.left, wmsg.rect.top,
2710 wmsg.rect.right, wmsg.rect.bottom));
2711 #endif /* W32_DEBUG_DISPLAY */
2712 }
2713 return 1;
2714 case WM_PALETTECHANGED:
2715 /* ignore our own changes */
2716 if ((HWND)wParam != hwnd)
2717 {
2718 f = x_window_to_frame (dpyinfo, hwnd);
2719 if (f)
2720 /* get_frame_dc will realize our palette and force all
2721 frames to be redrawn if needed. */
2722 release_frame_dc (f, get_frame_dc (f));
2723 }
2724 return 0;
2725 case WM_PAINT:
2726 {
2727 PAINTSTRUCT paintStruct;
2728 RECT update_rect;
2729 memset (&update_rect, 0, sizeof (update_rect));
2730
2731 f = x_window_to_frame (dpyinfo, hwnd);
2732 if (f == 0)
2733 {
2734 DebPrint (("WM_PAINT received for unknown window %p\n", hwnd));
2735 return 0;
2736 }
2737
2738 /* MSDN Docs say not to call BeginPaint if GetUpdateRect
2739 fails. Apparently this can happen under some
2740 circumstances. */
2741 if (GetUpdateRect (hwnd, &update_rect, FALSE) || !w32_strict_painting)
2742 {
2743 enter_crit ();
2744 BeginPaint (hwnd, &paintStruct);
2745
2746 /* The rectangles returned by GetUpdateRect and BeginPaint
2747 do not always match. Play it safe by assuming both areas
2748 are invalid. */
2749 UnionRect (&(wmsg.rect), &update_rect, &(paintStruct.rcPaint));
2750
2751 #if defined (W32_DEBUG_DISPLAY)
2752 DebPrint (("WM_PAINT (frame %p): painting %d,%d-%d,%d\n",
2753 f,
2754 wmsg.rect.left, wmsg.rect.top,
2755 wmsg.rect.right, wmsg.rect.bottom));
2756 DebPrint ((" [update region is %d,%d-%d,%d]\n",
2757 update_rect.left, update_rect.top,
2758 update_rect.right, update_rect.bottom));
2759 #endif
2760 EndPaint (hwnd, &paintStruct);
2761 leave_crit ();
2762
2763 /* Change the message type to prevent Windows from
2764 combining WM_PAINT messages in the Lisp thread's queue,
2765 since Windows assumes that each message queue is
2766 dedicated to one frame and does not bother checking
2767 that hwnd matches before combining them. */
2768 my_post_msg (&wmsg, hwnd, WM_EMACS_PAINT, wParam, lParam);
2769
2770 return 0;
2771 }
2772
2773 /* If GetUpdateRect returns 0 (meaning there is no update
2774 region), assume the whole window needs to be repainted. */
2775 GetClientRect (hwnd, &wmsg.rect);
2776 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
2777 return 0;
2778 }
2779
2780 case WM_INPUTLANGCHANGE:
2781 /* Inform lisp thread of keyboard layout changes. */
2782 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
2783
2784 /* Clear dead keys in the keyboard state; for simplicity only
2785 preserve modifier key states. */
2786 {
2787 int i;
2788 BYTE keystate[256];
2789
2790 GetKeyboardState (keystate);
2791 for (i = 0; i < 256; i++)
2792 if (1
2793 && i != VK_SHIFT
2794 && i != VK_LSHIFT
2795 && i != VK_RSHIFT
2796 && i != VK_CAPITAL
2797 && i != VK_NUMLOCK
2798 && i != VK_SCROLL
2799 && i != VK_CONTROL
2800 && i != VK_LCONTROL
2801 && i != VK_RCONTROL
2802 && i != VK_MENU
2803 && i != VK_LMENU
2804 && i != VK_RMENU
2805 && i != VK_LWIN
2806 && i != VK_RWIN)
2807 keystate[i] = 0;
2808 SetKeyboardState (keystate);
2809 }
2810 goto dflt;
2811
2812 case WM_HOTKEY:
2813 /* Synchronize hot keys with normal input. */
2814 PostMessage (hwnd, WM_KEYDOWN, HIWORD (lParam), 0);
2815 return (0);
2816
2817 case WM_KEYUP:
2818 case WM_SYSKEYUP:
2819 record_keyup (wParam, lParam);
2820 goto dflt;
2821
2822 case WM_KEYDOWN:
2823 case WM_SYSKEYDOWN:
2824 /* Ignore keystrokes we fake ourself; see below. */
2825 if (dpyinfo->faked_key == wParam)
2826 {
2827 dpyinfo->faked_key = 0;
2828 /* Make sure TranslateMessage sees them though (as long as
2829 they don't produce WM_CHAR messages). This ensures that
2830 indicator lights are toggled promptly on Windows 9x, for
2831 example. */
2832 if (wParam < 256 && lispy_function_keys[wParam])
2833 {
2834 windows_translate = 1;
2835 goto translate;
2836 }
2837 return 0;
2838 }
2839
2840 /* Synchronize modifiers with current keystroke. */
2841 sync_modifiers ();
2842 record_keydown (wParam, lParam);
2843 wParam = map_keypad_keys (wParam, (lParam & 0x1000000L) != 0);
2844
2845 windows_translate = 0;
2846
2847 switch (wParam)
2848 {
2849 case VK_LWIN:
2850 if (NILP (Vw32_pass_lwindow_to_system))
2851 {
2852 /* Prevent system from acting on keyup (which opens the
2853 Start menu if no other key was pressed) by simulating a
2854 press of Space which we will ignore. */
2855 if (GetAsyncKeyState (wParam) & 1)
2856 {
2857 if (NUMBERP (Vw32_phantom_key_code))
2858 key = XUINT (Vw32_phantom_key_code) & 255;
2859 else
2860 key = VK_SPACE;
2861 dpyinfo->faked_key = key;
2862 keybd_event (key, (BYTE) MapVirtualKey (key, 0), 0, 0);
2863 }
2864 }
2865 if (!NILP (Vw32_lwindow_modifier))
2866 return 0;
2867 break;
2868 case VK_RWIN:
2869 if (NILP (Vw32_pass_rwindow_to_system))
2870 {
2871 if (GetAsyncKeyState (wParam) & 1)
2872 {
2873 if (NUMBERP (Vw32_phantom_key_code))
2874 key = XUINT (Vw32_phantom_key_code) & 255;
2875 else
2876 key = VK_SPACE;
2877 dpyinfo->faked_key = key;
2878 keybd_event (key, (BYTE) MapVirtualKey (key, 0), 0, 0);
2879 }
2880 }
2881 if (!NILP (Vw32_rwindow_modifier))
2882 return 0;
2883 break;
2884 case VK_APPS:
2885 if (!NILP (Vw32_apps_modifier))
2886 return 0;
2887 break;
2888 case VK_MENU:
2889 if (NILP (Vw32_pass_alt_to_system))
2890 /* Prevent DefWindowProc from activating the menu bar if an
2891 Alt key is pressed and released by itself. */
2892 return 0;
2893 windows_translate = 1;
2894 break;
2895 case VK_CAPITAL:
2896 /* Decide whether to treat as modifier or function key. */
2897 if (NILP (Vw32_enable_caps_lock))
2898 goto disable_lock_key;
2899 windows_translate = 1;
2900 break;
2901 case VK_NUMLOCK:
2902 /* Decide whether to treat as modifier or function key. */
2903 if (NILP (Vw32_enable_num_lock))
2904 goto disable_lock_key;
2905 windows_translate = 1;
2906 break;
2907 case VK_SCROLL:
2908 /* Decide whether to treat as modifier or function key. */
2909 if (NILP (Vw32_scroll_lock_modifier))
2910 goto disable_lock_key;
2911 windows_translate = 1;
2912 break;
2913 disable_lock_key:
2914 /* Ensure the appropriate lock key state (and indicator light)
2915 remains in the same state. We do this by faking another
2916 press of the relevant key. Apparently, this really is the
2917 only way to toggle the state of the indicator lights. */
2918 dpyinfo->faked_key = wParam;
2919 keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0),
2920 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
2921 keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0),
2922 KEYEVENTF_EXTENDEDKEY | 0, 0);
2923 keybd_event ((BYTE) wParam, (BYTE) MapVirtualKey (wParam, 0),
2924 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
2925 /* Ensure indicator lights are updated promptly on Windows 9x
2926 (TranslateMessage apparently does this), after forwarding
2927 input event. */
2928 post_character_message (hwnd, msg, wParam, lParam,
2929 w32_get_key_modifiers (wParam, lParam));
2930 windows_translate = 1;
2931 break;
2932 case VK_CONTROL:
2933 case VK_SHIFT:
2934 case VK_PROCESSKEY: /* Generated by IME. */
2935 windows_translate = 1;
2936 break;
2937 case VK_CANCEL:
2938 /* Windows maps Ctrl-Pause (aka Ctrl-Break) into VK_CANCEL,
2939 which is confusing for purposes of key binding; convert
2940 VK_CANCEL events into VK_PAUSE events. */
2941 wParam = VK_PAUSE;
2942 break;
2943 case VK_PAUSE:
2944 /* Windows maps Ctrl-NumLock into VK_PAUSE, which is confusing
2945 for purposes of key binding; convert these back into
2946 VK_NUMLOCK events, at least when we want to see NumLock key
2947 presses. (Note that there is never any possibility that
2948 VK_PAUSE with Ctrl really is C-Pause as per above.) */
2949 if (NILP (Vw32_enable_num_lock) && modifier_set (VK_CONTROL))
2950 wParam = VK_NUMLOCK;
2951 break;
2952 default:
2953 /* If not defined as a function key, change it to a WM_CHAR message. */
2954 if (wParam > 255 || !lispy_function_keys[wParam])
2955 {
2956 DWORD modifiers = construct_console_modifiers ();
2957
2958 if (!NILP (Vw32_recognize_altgr)
2959 && modifier_set (VK_LCONTROL) && modifier_set (VK_RMENU))
2960 {
2961 /* Always let TranslateMessage handle AltGr key chords;
2962 for some reason, ToAscii doesn't always process AltGr
2963 chords correctly. */
2964 windows_translate = 1;
2965 }
2966 else if ((modifiers & (~SHIFT_PRESSED & ~CAPSLOCK_ON)) != 0)
2967 {
2968 /* Handle key chords including any modifiers other
2969 than shift directly, in order to preserve as much
2970 modifier information as possible. */
2971 if ('A' <= wParam && wParam <= 'Z')
2972 {
2973 /* Don't translate modified alphabetic keystrokes,
2974 so the user doesn't need to constantly switch
2975 layout to type control or meta keystrokes when
2976 the normal layout translates alphabetic
2977 characters to non-ascii characters. */
2978 if (!modifier_set (VK_SHIFT))
2979 wParam += ('a' - 'A');
2980 msg = WM_CHAR;
2981 }
2982 else
2983 {
2984 /* Try to handle other keystrokes by determining the
2985 base character (ie. translating the base key plus
2986 shift modifier). */
2987 int add;
2988 KEY_EVENT_RECORD key;
2989
2990 key.bKeyDown = TRUE;
2991 key.wRepeatCount = 1;
2992 key.wVirtualKeyCode = wParam;
2993 key.wVirtualScanCode = (lParam & 0xFF0000) >> 16;
2994 key.uChar.AsciiChar = 0;
2995 key.dwControlKeyState = modifiers;
2996
2997 add = w32_kbd_patch_key (&key, w32_keyboard_codepage);
2998 /* 0 means an unrecognized keycode, negative means
2999 dead key. Ignore both. */
3000 while (--add >= 0)
3001 {
3002 /* Forward asciified character sequence. */
3003 post_character_message
3004 (hwnd, WM_CHAR,
3005 (unsigned char) key.uChar.AsciiChar, lParam,
3006 w32_get_key_modifiers (wParam, lParam));
3007 w32_kbd_patch_key (&key, w32_keyboard_codepage);
3008 }
3009 return 0;
3010 }
3011 }
3012 else
3013 {
3014 /* Let TranslateMessage handle everything else. */
3015 windows_translate = 1;
3016 }
3017 }
3018 }
3019
3020 translate:
3021 if (windows_translate)
3022 {
3023 MSG windows_msg = { hwnd, msg, wParam, lParam, 0, {0,0} };
3024 windows_msg.time = GetMessageTime ();
3025 TranslateMessage (&windows_msg);
3026 goto dflt;
3027 }
3028
3029 /* Fall through */
3030
3031 case WM_SYSCHAR:
3032 case WM_CHAR:
3033 if (wParam > 255 )
3034 {
3035 W32Msg wmsg;
3036
3037 wmsg.dwModifiers = w32_get_key_modifiers (wParam, lParam);
3038 signal_user_input ();
3039 my_post_msg (&wmsg, hwnd, WM_UNICHAR, wParam, lParam);
3040
3041 }
3042 else
3043 post_character_message (hwnd, msg, wParam, lParam,
3044 w32_get_key_modifiers (wParam, lParam));
3045 break;
3046
3047 case WM_UNICHAR:
3048 /* WM_UNICHAR looks promising from the docs, but the exact
3049 circumstances in which TranslateMessage sends it is one of those
3050 Microsoft secret API things that EU and US courts are supposed
3051 to have put a stop to already. Spy++ shows it being sent to Notepad
3052 and other MS apps, but never to Emacs.
3053
3054 Some third party IMEs send it in accordance with the official
3055 documentation though, so handle it here.
3056
3057 UNICODE_NOCHAR is used to test for support for this message.
3058 TRUE indicates that the message is supported. */
3059 if (wParam == UNICODE_NOCHAR)
3060 return TRUE;
3061
3062 {
3063 W32Msg wmsg;
3064 wmsg.dwModifiers = w32_get_key_modifiers (wParam, lParam);
3065 signal_user_input ();
3066 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3067 }
3068 break;
3069
3070 case WM_IME_CHAR:
3071 /* If we can't get the IME result as Unicode, use default processing,
3072 which will at least allow characters decodable in the system locale
3073 get through. */
3074 if (!get_composition_string_fn)
3075 goto dflt;
3076
3077 else if (!ignore_ime_char)
3078 {
3079 wchar_t * buffer;
3080 int size, i;
3081 W32Msg wmsg;
3082 HIMC context = get_ime_context_fn (hwnd);
3083 wmsg.dwModifiers = w32_get_key_modifiers (wParam, lParam);
3084 /* Get buffer size. */
3085 size = get_composition_string_fn (context, GCS_RESULTSTR, NULL, 0);
3086 buffer = alloca (size);
3087 size = get_composition_string_fn (context, GCS_RESULTSTR,
3088 buffer, size);
3089 release_ime_context_fn (hwnd, context);
3090
3091 signal_user_input ();
3092 for (i = 0; i < size / sizeof (wchar_t); i++)
3093 {
3094 my_post_msg (&wmsg, hwnd, WM_UNICHAR, (WPARAM) buffer[i],
3095 lParam);
3096 }
3097 /* Ignore the messages for the rest of the
3098 characters in the string that was output above. */
3099 ignore_ime_char = (size / sizeof (wchar_t)) - 1;
3100 }
3101 else
3102 ignore_ime_char--;
3103
3104 break;
3105
3106 case WM_IME_STARTCOMPOSITION:
3107 if (!set_ime_composition_window_fn)
3108 goto dflt;
3109 else
3110 {
3111 COMPOSITIONFORM form;
3112 HIMC context;
3113 struct window *w;
3114
3115 f = x_window_to_frame (dpyinfo, hwnd);
3116 w = XWINDOW (FRAME_SELECTED_WINDOW (f));
3117
3118 form.dwStyle = CFS_RECT;
3119 form.ptCurrentPos.x = w32_system_caret_x;
3120 form.ptCurrentPos.y = w32_system_caret_y;
3121
3122 form.rcArea.left = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, 0);
3123
3124 #ifdef ENABLE_CHECKING
3125 /* Temporary code to catch crashes in computing form.rcArea.top. */
3126 {
3127 int wmbp = WINDOW_MENU_BAR_P (w);
3128 int wtbp = WINDOW_TOOL_BAR_P (w);
3129 struct frame *wf = WINDOW_XFRAME (w);
3130 int fibw = FRAME_INTERNAL_BORDER_WIDTH (wf);
3131 int wtel = WINDOW_TOP_EDGE_LINE (w);
3132 int wflh = FRAME_LINE_HEIGHT (wf);
3133 int wwhlp= WINDOW_WANTS_HEADER_LINE_P (w);
3134 int chlh = CURRENT_HEADER_LINE_HEIGHT (w);
3135 int whlh = (wwhlp ? chlh : 0);
3136
3137 form.rcArea.top = ((wmbp || wtbp) ? 0 : fibw) + wtel * wflh + whlh;
3138 }
3139 #else
3140 form.rcArea.top = (WINDOW_TOP_EDGE_Y (w)
3141 + WINDOW_HEADER_LINE_HEIGHT (w));
3142 #endif
3143 form.rcArea.right = (WINDOW_BOX_RIGHT_EDGE_X (w)
3144 - WINDOW_RIGHT_MARGIN_WIDTH (w)
3145 - WINDOW_RIGHT_FRINGE_WIDTH (w));
3146 form.rcArea.bottom = (WINDOW_BOTTOM_EDGE_Y (w)
3147 - WINDOW_MODE_LINE_HEIGHT (w));
3148
3149 context = get_ime_context_fn (hwnd);
3150
3151 if (!context)
3152 break;
3153
3154 set_ime_composition_window_fn (context, &form);
3155 release_ime_context_fn (hwnd, context);
3156 }
3157 break;
3158
3159 case WM_IME_ENDCOMPOSITION:
3160 ignore_ime_char = 0;
3161 goto dflt;
3162
3163 /* Simulate middle mouse button events when left and right buttons
3164 are used together, but only if user has two button mouse. */
3165 case WM_LBUTTONDOWN:
3166 case WM_RBUTTONDOWN:
3167 if (w32_num_mouse_buttons > 2)
3168 goto handle_plain_button;
3169
3170 {
3171 int this = (msg == WM_LBUTTONDOWN) ? LMOUSE : RMOUSE;
3172 int other = (msg == WM_LBUTTONDOWN) ? RMOUSE : LMOUSE;
3173
3174 if (button_state & this)
3175 return 0;
3176
3177 if (button_state == 0)
3178 SetCapture (hwnd);
3179
3180 button_state |= this;
3181
3182 if (button_state & other)
3183 {
3184 if (mouse_button_timer)
3185 {
3186 KillTimer (hwnd, mouse_button_timer);
3187 mouse_button_timer = 0;
3188
3189 /* Generate middle mouse event instead. */
3190 msg = WM_MBUTTONDOWN;
3191 button_state |= MMOUSE;
3192 }
3193 else if (button_state & MMOUSE)
3194 {
3195 /* Ignore button event if we've already generated a
3196 middle mouse down event. This happens if the
3197 user releases and press one of the two buttons
3198 after we've faked a middle mouse event. */
3199 return 0;
3200 }
3201 else
3202 {
3203 /* Flush out saved message. */
3204 post_msg (&saved_mouse_button_msg);
3205 }
3206 wmsg.dwModifiers = w32_get_modifiers ();
3207 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3208 signal_user_input ();
3209
3210 /* Clear message buffer. */
3211 saved_mouse_button_msg.msg.hwnd = 0;
3212 }
3213 else
3214 {
3215 /* Hold onto message for now. */
3216 mouse_button_timer =
3217 SetTimer (hwnd, MOUSE_BUTTON_ID,
3218 w32_mouse_button_tolerance, NULL);
3219 saved_mouse_button_msg.msg.hwnd = hwnd;
3220 saved_mouse_button_msg.msg.message = msg;
3221 saved_mouse_button_msg.msg.wParam = wParam;
3222 saved_mouse_button_msg.msg.lParam = lParam;
3223 saved_mouse_button_msg.msg.time = GetMessageTime ();
3224 saved_mouse_button_msg.dwModifiers = w32_get_modifiers ();
3225 }
3226 }
3227 return 0;
3228
3229 case WM_LBUTTONUP:
3230 case WM_RBUTTONUP:
3231 if (w32_num_mouse_buttons > 2)
3232 goto handle_plain_button;
3233
3234 {
3235 int this = (msg == WM_LBUTTONUP) ? LMOUSE : RMOUSE;
3236 int other = (msg == WM_LBUTTONUP) ? RMOUSE : LMOUSE;
3237
3238 if ((button_state & this) == 0)
3239 return 0;
3240
3241 button_state &= ~this;
3242
3243 if (button_state & MMOUSE)
3244 {
3245 /* Only generate event when second button is released. */
3246 if ((button_state & other) == 0)
3247 {
3248 msg = WM_MBUTTONUP;
3249 button_state &= ~MMOUSE;
3250
3251 if (button_state) emacs_abort ();
3252 }
3253 else
3254 return 0;
3255 }
3256 else
3257 {
3258 /* Flush out saved message if necessary. */
3259 if (saved_mouse_button_msg.msg.hwnd)
3260 {
3261 post_msg (&saved_mouse_button_msg);
3262 }
3263 }
3264 wmsg.dwModifiers = w32_get_modifiers ();
3265 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3266 signal_user_input ();
3267
3268 /* Always clear message buffer and cancel timer. */
3269 saved_mouse_button_msg.msg.hwnd = 0;
3270 KillTimer (hwnd, mouse_button_timer);
3271 mouse_button_timer = 0;
3272
3273 if (button_state == 0)
3274 ReleaseCapture ();
3275 }
3276 return 0;
3277
3278 case WM_XBUTTONDOWN:
3279 case WM_XBUTTONUP:
3280 if (w32_pass_extra_mouse_buttons_to_system)
3281 goto dflt;
3282 /* else fall through and process them. */
3283 case WM_MBUTTONDOWN:
3284 case WM_MBUTTONUP:
3285 handle_plain_button:
3286 {
3287 BOOL up;
3288 int button;
3289
3290 /* Ignore middle and extra buttons as long as the menu is active. */
3291 f = x_window_to_frame (dpyinfo, hwnd);
3292 if (f && f->output_data.w32->menubar_active)
3293 return 0;
3294
3295 if (parse_button (msg, HIWORD (wParam), &button, &up))
3296 {
3297 if (up) ReleaseCapture ();
3298 else SetCapture (hwnd);
3299 button = (button == 0) ? LMOUSE :
3300 ((button == 1) ? MMOUSE : RMOUSE);
3301 if (up)
3302 button_state &= ~button;
3303 else
3304 button_state |= button;
3305 }
3306 }
3307
3308 wmsg.dwModifiers = w32_get_modifiers ();
3309 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3310 signal_user_input ();
3311
3312 /* Need to return true for XBUTTON messages, false for others,
3313 to indicate that we processed the message. */
3314 return (msg == WM_XBUTTONDOWN || msg == WM_XBUTTONUP);
3315
3316 case WM_MOUSEMOVE:
3317 /* Ignore mouse movements as long as the menu is active. These
3318 movements are processed by the window manager anyway, and
3319 it's wrong to handle them as if they happened on the
3320 underlying frame. */
3321 f = x_window_to_frame (dpyinfo, hwnd);
3322 if (f && f->output_data.w32->menubar_active)
3323 return 0;
3324
3325 /* If the mouse has just moved into the frame, start tracking
3326 it, so we will be notified when it leaves the frame. Mouse
3327 tracking only works under W98 and NT4 and later. On earlier
3328 versions, there is no way of telling when the mouse leaves the
3329 frame, so we just have to put up with help-echo and mouse
3330 highlighting remaining while the frame is not active. */
3331 if (track_mouse_event_fn && !track_mouse_window
3332 /* If the menu bar is active, turning on tracking of mouse
3333 movement events might send these events to the tooltip
3334 frame, if the user happens to move the mouse pointer over
3335 the tooltip. But since we don't process events for
3336 tooltip frames, this causes Windows to present a
3337 hourglass cursor, which is ugly and unexpected. So don't
3338 enable tracking mouse events in this case; they will be
3339 restarted when the menu pops down. (Confusingly, the
3340 menubar_active member of f->output_data.w32, tested
3341 above, is only set when a menu was popped up _not_ from
3342 the frame's menu bar, but via x-popup-menu.) */
3343 && !menubar_in_use)
3344 {
3345 TRACKMOUSEEVENT tme;
3346 tme.cbSize = sizeof (tme);
3347 tme.dwFlags = TME_LEAVE;
3348 tme.hwndTrack = hwnd;
3349
3350 track_mouse_event_fn (&tme);
3351 track_mouse_window = hwnd;
3352 }
3353 case WM_VSCROLL:
3354 if (w32_mouse_move_interval <= 0
3355 || (msg == WM_MOUSEMOVE && button_state == 0))
3356 {
3357 wmsg.dwModifiers = w32_get_modifiers ();
3358 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3359 return 0;
3360 }
3361
3362 /* Hang onto mouse move and scroll messages for a bit, to avoid
3363 sending such events to Emacs faster than it can process them.
3364 If we get more events before the timer from the first message
3365 expires, we just replace the first message. */
3366
3367 if (saved_mouse_move_msg.msg.hwnd == 0)
3368 mouse_move_timer =
3369 SetTimer (hwnd, MOUSE_MOVE_ID,
3370 w32_mouse_move_interval, NULL);
3371
3372 /* Hold onto message for now. */
3373 saved_mouse_move_msg.msg.hwnd = hwnd;
3374 saved_mouse_move_msg.msg.message = msg;
3375 saved_mouse_move_msg.msg.wParam = wParam;
3376 saved_mouse_move_msg.msg.lParam = lParam;
3377 saved_mouse_move_msg.msg.time = GetMessageTime ();
3378 saved_mouse_move_msg.dwModifiers = w32_get_modifiers ();
3379
3380 return 0;
3381
3382 case WM_MOUSEWHEEL:
3383 case WM_DROPFILES:
3384 wmsg.dwModifiers = w32_get_modifiers ();
3385 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3386 signal_user_input ();
3387 return 0;
3388
3389 case WM_APPCOMMAND:
3390 if (w32_pass_multimedia_buttons_to_system)
3391 goto dflt;
3392 /* Otherwise, pass to lisp, the same way we do with mousehwheel. */
3393 case WM_MOUSEHWHEEL:
3394 wmsg.dwModifiers = w32_get_modifiers ();
3395 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3396 signal_user_input ();
3397 /* Non-zero must be returned when WM_MOUSEHWHEEL messages are
3398 handled, to prevent the system trying to handle it by faking
3399 scroll bar events. */
3400 return 1;
3401
3402 case WM_TIMER:
3403 /* Flush out saved messages if necessary. */
3404 if (wParam == mouse_button_timer)
3405 {
3406 if (saved_mouse_button_msg.msg.hwnd)
3407 {
3408 post_msg (&saved_mouse_button_msg);
3409 signal_user_input ();
3410 saved_mouse_button_msg.msg.hwnd = 0;
3411 }
3412 KillTimer (hwnd, mouse_button_timer);
3413 mouse_button_timer = 0;
3414 }
3415 else if (wParam == mouse_move_timer)
3416 {
3417 if (saved_mouse_move_msg.msg.hwnd)
3418 {
3419 post_msg (&saved_mouse_move_msg);
3420 saved_mouse_move_msg.msg.hwnd = 0;
3421 }
3422 KillTimer (hwnd, mouse_move_timer);
3423 mouse_move_timer = 0;
3424 }
3425 else if (wParam == menu_free_timer)
3426 {
3427 KillTimer (hwnd, menu_free_timer);
3428 menu_free_timer = 0;
3429 f = x_window_to_frame (dpyinfo, hwnd);
3430 /* If a popup menu is active, don't wipe its strings. */
3431 if (menubar_in_use
3432 && current_popup_menu == NULL)
3433 {
3434 /* Free memory used by owner-drawn and help-echo strings. */
3435 w32_free_menu_strings (hwnd);
3436 if (f)
3437 f->output_data.w32->menubar_active = 0;
3438 menubar_in_use = 0;
3439 }
3440 }
3441 return 0;
3442
3443 case WM_NCACTIVATE:
3444 /* Windows doesn't send us focus messages when putting up and
3445 taking down a system popup dialog as for Ctrl-Alt-Del on Windows 95.
3446 The only indication we get that something happened is receiving
3447 this message afterwards. So this is a good time to reset our
3448 keyboard modifiers' state. */
3449 reset_modifiers ();
3450 goto dflt;
3451
3452 case WM_INITMENU:
3453 button_state = 0;
3454 ReleaseCapture ();
3455 /* We must ensure menu bar is fully constructed and up to date
3456 before allowing user interaction with it. To achieve this
3457 we send this message to the lisp thread and wait for a
3458 reply (whose value is not actually needed) to indicate that
3459 the menu bar is now ready for use, so we can now return.
3460
3461 To remain responsive in the meantime, we enter a nested message
3462 loop that can process all other messages.
3463
3464 However, we skip all this if the message results from calling
3465 TrackPopupMenu - in fact, we must NOT attempt to send the lisp
3466 thread a message because it is blocked on us at this point. We
3467 set menubar_active before calling TrackPopupMenu to indicate
3468 this (there is no possibility of confusion with real menubar
3469 being active). */
3470
3471 f = x_window_to_frame (dpyinfo, hwnd);
3472 if (f
3473 && (f->output_data.w32->menubar_active
3474 /* We can receive this message even in the absence of a
3475 menubar (ie. when the system menu is activated) - in this
3476 case we do NOT want to forward the message, otherwise it
3477 will cause the menubar to suddenly appear when the user
3478 had requested it to be turned off! */
3479 || f->output_data.w32->menubar_widget == NULL))
3480 return 0;
3481
3482 {
3483 deferred_msg msg_buf;
3484
3485 /* Detect if message has already been deferred; in this case
3486 we cannot return any sensible value to ignore this. */
3487 if (find_deferred_msg (hwnd, msg) != NULL)
3488 emacs_abort ();
3489
3490 menubar_in_use = 1;
3491
3492 return send_deferred_msg (&msg_buf, hwnd, msg, wParam, lParam);
3493 }
3494
3495 case WM_EXITMENULOOP:
3496 f = x_window_to_frame (dpyinfo, hwnd);
3497
3498 /* If a menu is still active, check again after a short delay,
3499 since Windows often (always?) sends the WM_EXITMENULOOP
3500 before the corresponding WM_COMMAND message.
3501 Don't do this if a popup menu is active, since it is only
3502 menubar menus that require cleaning up in this way.
3503 */
3504 if (f && menubar_in_use && current_popup_menu == NULL)
3505 menu_free_timer = SetTimer (hwnd, MENU_FREE_ID, MENU_FREE_DELAY, NULL);
3506
3507 /* If hourglass cursor should be displayed, display it now. */
3508 if (f && f->output_data.w32->hourglass_p)
3509 SetCursor (f->output_data.w32->hourglass_cursor);
3510
3511 goto dflt;
3512
3513 case WM_MENUSELECT:
3514 /* Direct handling of help_echo in menus. Should be safe now
3515 that we generate the help_echo by placing a help event in the
3516 keyboard buffer. */
3517 {
3518 HMENU menu = (HMENU) lParam;
3519 UINT menu_item = (UINT) LOWORD (wParam);
3520 UINT flags = (UINT) HIWORD (wParam);
3521
3522 w32_menu_display_help (hwnd, menu, menu_item, flags);
3523 }
3524 return 0;
3525
3526 case WM_MEASUREITEM:
3527 f = x_window_to_frame (dpyinfo, hwnd);
3528 if (f)
3529 {
3530 MEASUREITEMSTRUCT * pMis = (MEASUREITEMSTRUCT *) lParam;
3531
3532 if (pMis->CtlType == ODT_MENU)
3533 {
3534 /* Work out dimensions for popup menu titles. */
3535 char * title = (char *) pMis->itemData;
3536 HDC hdc = GetDC (hwnd);
3537 HFONT menu_font = GetCurrentObject (hdc, OBJ_FONT);
3538 LOGFONT menu_logfont;
3539 HFONT old_font;
3540 SIZE size;
3541
3542 GetObject (menu_font, sizeof (menu_logfont), &menu_logfont);
3543 menu_logfont.lfWeight = FW_BOLD;
3544 menu_font = CreateFontIndirect (&menu_logfont);
3545 old_font = SelectObject (hdc, menu_font);
3546
3547 pMis->itemHeight = GetSystemMetrics (SM_CYMENUSIZE);
3548 if (title)
3549 {
3550 if (unicode_append_menu)
3551 GetTextExtentPoint32W (hdc, (WCHAR *) title,
3552 wcslen ((WCHAR *) title),
3553 &size);
3554 else
3555 GetTextExtentPoint32 (hdc, title, strlen (title), &size);
3556
3557 pMis->itemWidth = size.cx;
3558 if (pMis->itemHeight < size.cy)
3559 pMis->itemHeight = size.cy;
3560 }
3561 else
3562 pMis->itemWidth = 0;
3563
3564 SelectObject (hdc, old_font);
3565 DeleteObject (menu_font);
3566 ReleaseDC (hwnd, hdc);
3567 return TRUE;
3568 }
3569 }
3570 return 0;
3571
3572 case WM_DRAWITEM:
3573 f = x_window_to_frame (dpyinfo, hwnd);
3574 if (f)
3575 {
3576 DRAWITEMSTRUCT * pDis = (DRAWITEMSTRUCT *) lParam;
3577
3578 if (pDis->CtlType == ODT_MENU)
3579 {
3580 /* Draw popup menu title. */
3581 char * title = (char *) pDis->itemData;
3582 if (title)
3583 {
3584 HDC hdc = pDis->hDC;
3585 HFONT menu_font = GetCurrentObject (hdc, OBJ_FONT);
3586 LOGFONT menu_logfont;
3587 HFONT old_font;
3588
3589 GetObject (menu_font, sizeof (menu_logfont), &menu_logfont);
3590 menu_logfont.lfWeight = FW_BOLD;
3591 menu_font = CreateFontIndirect (&menu_logfont);
3592 old_font = SelectObject (hdc, menu_font);
3593
3594 /* Always draw title as if not selected. */
3595 if (unicode_append_menu)
3596 ExtTextOutW (hdc,
3597 pDis->rcItem.left
3598 + GetSystemMetrics (SM_CXMENUCHECK),
3599 pDis->rcItem.top,
3600 ETO_OPAQUE, &pDis->rcItem,
3601 (WCHAR *) title,
3602 wcslen ((WCHAR *) title), NULL);
3603 else
3604 ExtTextOut (hdc,
3605 pDis->rcItem.left
3606 + GetSystemMetrics (SM_CXMENUCHECK),
3607 pDis->rcItem.top,
3608 ETO_OPAQUE, &pDis->rcItem,
3609 title, strlen (title), NULL);
3610
3611 SelectObject (hdc, old_font);
3612 DeleteObject (menu_font);
3613 }
3614 return TRUE;
3615 }
3616 }
3617 return 0;
3618
3619 #if 0
3620 /* Still not right - can't distinguish between clicks in the
3621 client area of the frame from clicks forwarded from the scroll
3622 bars - may have to hook WM_NCHITTEST to remember the mouse
3623 position and then check if it is in the client area ourselves. */
3624 case WM_MOUSEACTIVATE:
3625 /* Discard the mouse click that activates a frame, allowing the
3626 user to click anywhere without changing point (or worse!).
3627 Don't eat mouse clicks on scrollbars though!! */
3628 if (LOWORD (lParam) == HTCLIENT )
3629 return MA_ACTIVATEANDEAT;
3630 goto dflt;
3631 #endif
3632
3633 case WM_MOUSELEAVE:
3634 /* No longer tracking mouse. */
3635 track_mouse_window = NULL;
3636
3637 case WM_ACTIVATEAPP:
3638 case WM_ACTIVATE:
3639 case WM_WINDOWPOSCHANGED:
3640 case WM_SHOWWINDOW:
3641 /* Inform lisp thread that a frame might have just been obscured
3642 or exposed, so should recheck visibility of all frames. */
3643 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3644 goto dflt;
3645
3646 case WM_SETFOCUS:
3647 dpyinfo->faked_key = 0;
3648 reset_modifiers ();
3649 register_hot_keys (hwnd);
3650 goto command;
3651 case WM_KILLFOCUS:
3652 unregister_hot_keys (hwnd);
3653 button_state = 0;
3654 ReleaseCapture ();
3655 /* Relinquish the system caret. */
3656 if (w32_system_caret_hwnd)
3657 {
3658 w32_visible_system_caret_hwnd = NULL;
3659 w32_system_caret_hwnd = NULL;
3660 DestroyCaret ();
3661 }
3662 goto command;
3663 case WM_COMMAND:
3664 menubar_in_use = 0;
3665 f = x_window_to_frame (dpyinfo, hwnd);
3666 if (f && HIWORD (wParam) == 0)
3667 {
3668 if (menu_free_timer)
3669 {
3670 KillTimer (hwnd, menu_free_timer);
3671 menu_free_timer = 0;
3672 }
3673 }
3674 case WM_MOVE:
3675 case WM_SIZE:
3676 command:
3677 wmsg.dwModifiers = w32_get_modifiers ();
3678 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3679 goto dflt;
3680
3681 case WM_DESTROY:
3682 CoUninitialize ();
3683 return 0;
3684
3685 case WM_CLOSE:
3686 wmsg.dwModifiers = w32_get_modifiers ();
3687 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3688 return 0;
3689
3690 case WM_WINDOWPOSCHANGING:
3691 /* Don't restrict the sizing of tip frames. */
3692 if (hwnd == tip_window)
3693 return 0;
3694 {
3695 WINDOWPLACEMENT wp;
3696 LPWINDOWPOS lppos = (WINDOWPOS *) lParam;
3697
3698 wp.length = sizeof (WINDOWPLACEMENT);
3699 GetWindowPlacement (hwnd, &wp);
3700
3701 if (wp.showCmd != SW_SHOWMINIMIZED && (lppos->flags & SWP_NOSIZE) == 0)
3702 {
3703 RECT rect;
3704 int wdiff;
3705 int hdiff;
3706 DWORD font_width;
3707 DWORD line_height;
3708 DWORD internal_border;
3709 DWORD scrollbar_extra;
3710 RECT wr;
3711
3712 wp.length = sizeof (wp);
3713 GetWindowRect (hwnd, &wr);
3714
3715 enter_crit ();
3716
3717 font_width = GetWindowLong (hwnd, WND_FONTWIDTH_INDEX);
3718 line_height = GetWindowLong (hwnd, WND_LINEHEIGHT_INDEX);
3719 internal_border = GetWindowLong (hwnd, WND_BORDER_INDEX);
3720 scrollbar_extra = GetWindowLong (hwnd, WND_SCROLLBAR_INDEX);
3721
3722 leave_crit ();
3723
3724 memset (&rect, 0, sizeof (rect));
3725 AdjustWindowRect (&rect, GetWindowLong (hwnd, GWL_STYLE),
3726 GetMenu (hwnd) != NULL);
3727
3728 /* Force width and height of client area to be exact
3729 multiples of the character cell dimensions. */
3730 wdiff = (lppos->cx - (rect.right - rect.left)
3731 - 2 * internal_border - scrollbar_extra)
3732 % font_width;
3733 hdiff = (lppos->cy - (rect.bottom - rect.top)
3734 - 2 * internal_border)
3735 % line_height;
3736
3737 if (wdiff || hdiff)
3738 {
3739 /* For right/bottom sizing we can just fix the sizes.
3740 However for top/left sizing we will need to fix the X
3741 and Y positions as well. */
3742
3743 int cx_mintrack = GetSystemMetrics (SM_CXMINTRACK);
3744 int cy_mintrack = GetSystemMetrics (SM_CYMINTRACK);
3745
3746 lppos->cx = max (lppos->cx - wdiff, cx_mintrack);
3747 lppos->cy = max (lppos->cy - hdiff, cy_mintrack);
3748
3749 if (wp.showCmd != SW_SHOWMAXIMIZED
3750 && (lppos->flags & SWP_NOMOVE) == 0)
3751 {
3752 if (lppos->x != wr.left || lppos->y != wr.top)
3753 {
3754 lppos->x += wdiff;
3755 lppos->y += hdiff;
3756 }
3757 else
3758 {
3759 lppos->flags |= SWP_NOMOVE;
3760 }
3761 }
3762
3763 return 0;
3764 }
3765 }
3766 }
3767
3768 goto dflt;
3769
3770 case WM_GETMINMAXINFO:
3771 /* Hack to allow resizing the Emacs frame above the screen size.
3772 Note that Windows 9x limits coordinates to 16-bits. */
3773 ((LPMINMAXINFO) lParam)->ptMaxTrackSize.x = 32767;
3774 ((LPMINMAXINFO) lParam)->ptMaxTrackSize.y = 32767;
3775 return 0;
3776
3777 case WM_SETCURSOR:
3778 if (LOWORD (lParam) == HTCLIENT)
3779 {
3780 f = x_window_to_frame (dpyinfo, hwnd);
3781 if (f && f->output_data.w32->hourglass_p
3782 && !menubar_in_use && !current_popup_menu)
3783 SetCursor (f->output_data.w32->hourglass_cursor);
3784 else if (f)
3785 SetCursor (f->output_data.w32->current_cursor);
3786 return 0;
3787 }
3788 goto dflt;
3789
3790 case WM_EMACS_SETCURSOR:
3791 {
3792 Cursor cursor = (Cursor) wParam;
3793 f = x_window_to_frame (dpyinfo, hwnd);
3794 if (f && cursor)
3795 {
3796 f->output_data.w32->current_cursor = cursor;
3797 if (!f->output_data.w32->hourglass_p)
3798 SetCursor (cursor);
3799 }
3800 return 0;
3801 }
3802
3803 case WM_EMACS_CREATESCROLLBAR:
3804 return (LRESULT) w32_createscrollbar ((struct frame *) wParam,
3805 (struct scroll_bar *) lParam);
3806
3807 case WM_EMACS_SHOWWINDOW:
3808 return ShowWindow ((HWND) wParam, (WPARAM) lParam);
3809
3810 case WM_EMACS_BRINGTOTOP:
3811 case WM_EMACS_SETFOREGROUND:
3812 {
3813 HWND foreground_window;
3814 DWORD foreground_thread, retval;
3815
3816 /* On NT 5.0, and apparently Windows 98, it is necessary to
3817 attach to the thread that currently has focus in order to
3818 pull the focus away from it. */
3819 foreground_window = GetForegroundWindow ();
3820 foreground_thread = GetWindowThreadProcessId (foreground_window, NULL);
3821 if (!foreground_window
3822 || foreground_thread == GetCurrentThreadId ()
3823 || !AttachThreadInput (GetCurrentThreadId (),
3824 foreground_thread, TRUE))
3825 foreground_thread = 0;
3826
3827 retval = SetForegroundWindow ((HWND) wParam);
3828 if (msg == WM_EMACS_BRINGTOTOP)
3829 retval = BringWindowToTop ((HWND) wParam);
3830
3831 /* Detach from the previous foreground thread. */
3832 if (foreground_thread)
3833 AttachThreadInput (GetCurrentThreadId (),
3834 foreground_thread, FALSE);
3835
3836 return retval;
3837 }
3838
3839 case WM_EMACS_SETWINDOWPOS:
3840 {
3841 WINDOWPOS * pos = (WINDOWPOS *) wParam;
3842 return SetWindowPos (hwnd, pos->hwndInsertAfter,
3843 pos->x, pos->y, pos->cx, pos->cy, pos->flags);
3844 }
3845
3846 case WM_EMACS_DESTROYWINDOW:
3847 DragAcceptFiles ((HWND) wParam, FALSE);
3848 return DestroyWindow ((HWND) wParam);
3849
3850 case WM_EMACS_HIDE_CARET:
3851 return HideCaret (hwnd);
3852
3853 case WM_EMACS_SHOW_CARET:
3854 return ShowCaret (hwnd);
3855
3856 case WM_EMACS_DESTROY_CARET:
3857 w32_system_caret_hwnd = NULL;
3858 w32_visible_system_caret_hwnd = NULL;
3859 return DestroyCaret ();
3860
3861 case WM_EMACS_TRACK_CARET:
3862 /* If there is currently no system caret, create one. */
3863 if (w32_system_caret_hwnd == NULL)
3864 {
3865 /* Use the default caret width, and avoid changing it
3866 unnecessarily, as it confuses screen reader software. */
3867 w32_system_caret_hwnd = hwnd;
3868 CreateCaret (hwnd, NULL, 0,
3869 w32_system_caret_height);
3870 }
3871
3872 if (!SetCaretPos (w32_system_caret_x, w32_system_caret_y))
3873 return 0;
3874 /* Ensure visible caret gets turned on when requested. */
3875 else if (w32_use_visible_system_caret
3876 && w32_visible_system_caret_hwnd != hwnd)
3877 {
3878 w32_visible_system_caret_hwnd = hwnd;
3879 return ShowCaret (hwnd);
3880 }
3881 /* Ensure visible caret gets turned off when requested. */
3882 else if (!w32_use_visible_system_caret
3883 && w32_visible_system_caret_hwnd)
3884 {
3885 w32_visible_system_caret_hwnd = NULL;
3886 return HideCaret (hwnd);
3887 }
3888 else
3889 return 1;
3890
3891 case WM_EMACS_TRACKPOPUPMENU:
3892 {
3893 UINT flags;
3894 POINT *pos;
3895 int retval;
3896 pos = (POINT *)lParam;
3897 flags = TPM_CENTERALIGN;
3898 if (button_state & LMOUSE)
3899 flags |= TPM_LEFTBUTTON;
3900 else if (button_state & RMOUSE)
3901 flags |= TPM_RIGHTBUTTON;
3902
3903 /* Remember we did a SetCapture on the initial mouse down event,
3904 so for safety, we make sure the capture is canceled now. */
3905 ReleaseCapture ();
3906 button_state = 0;
3907
3908 /* Use menubar_active to indicate that WM_INITMENU is from
3909 TrackPopupMenu below, and should be ignored. */
3910 f = x_window_to_frame (dpyinfo, hwnd);
3911 if (f)
3912 f->output_data.w32->menubar_active = 1;
3913
3914 if (TrackPopupMenu ((HMENU)wParam, flags, pos->x, pos->y,
3915 0, hwnd, NULL))
3916 {
3917 MSG amsg;
3918 /* Eat any mouse messages during popupmenu */
3919 while (PeekMessage (&amsg, hwnd, WM_MOUSEFIRST, WM_MOUSELAST,
3920 PM_REMOVE));
3921 /* Get the menu selection, if any */
3922 if (PeekMessage (&amsg, hwnd, WM_COMMAND, WM_COMMAND, PM_REMOVE))
3923 {
3924 retval = LOWORD (amsg.wParam);
3925 }
3926 else
3927 {
3928 retval = 0;
3929 }
3930 }
3931 else
3932 {
3933 retval = -1;
3934 }
3935
3936 return retval;
3937 }
3938 case WM_EMACS_FILENOTIFY:
3939 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3940 return 1;
3941
3942 default:
3943 /* Check for messages registered at runtime. */
3944 if (msg == msh_mousewheel)
3945 {
3946 wmsg.dwModifiers = w32_get_modifiers ();
3947 my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
3948 signal_user_input ();
3949 return 0;
3950 }
3951
3952 dflt:
3953 return (w32_unicode_gui ? DefWindowProcW : DefWindowProcA) (hwnd, msg, wParam, lParam);
3954 }
3955
3956 /* The most common default return code for handled messages is 0. */
3957 return 0;
3958 }
3959
3960 static void
3961 my_create_window (struct frame * f)
3962 {
3963 MSG msg;
3964
3965 if (!PostThreadMessage (dwWindowsThreadId, WM_EMACS_CREATEWINDOW, (WPARAM)f, 0))
3966 emacs_abort ();
3967 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
3968 }
3969
3970
3971 /* Create a tooltip window. Unlike my_create_window, we do not do this
3972 indirectly via the Window thread, as we do not need to process Window
3973 messages for the tooltip. Creating tooltips indirectly also creates
3974 deadlocks when tooltips are created for menu items. */
3975 static void
3976 my_create_tip_window (struct frame *f)
3977 {
3978 RECT rect;
3979
3980 rect.left = rect.top = 0;
3981 rect.right = FRAME_PIXEL_WIDTH (f);
3982 rect.bottom = FRAME_PIXEL_HEIGHT (f);
3983
3984 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
3985 FRAME_EXTERNAL_MENU_BAR (f));
3986
3987 tip_window = FRAME_W32_WINDOW (f)
3988 = CreateWindow (EMACS_CLASS,
3989 f->namebuf,
3990 f->output_data.w32->dwStyle,
3991 f->left_pos,
3992 f->top_pos,
3993 rect.right - rect.left,
3994 rect.bottom - rect.top,
3995 FRAME_W32_WINDOW (SELECTED_FRAME ()), /* owner */
3996 NULL,
3997 hinst,
3998 NULL);
3999
4000 if (tip_window)
4001 {
4002 SetWindowLong (tip_window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
4003 SetWindowLong (tip_window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
4004 SetWindowLong (tip_window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
4005 SetWindowLong (tip_window, WND_BACKGROUND_INDEX, FRAME_BACKGROUND_PIXEL (f));
4006
4007 /* Tip frames have no scrollbars. */
4008 SetWindowLong (tip_window, WND_SCROLLBAR_INDEX, 0);
4009
4010 /* Do this to discard the default setting specified by our parent. */
4011 ShowWindow (tip_window, SW_HIDE);
4012 }
4013 }
4014
4015
4016 /* Create and set up the w32 window for frame F. */
4017
4018 static void
4019 w32_window (struct frame *f, long window_prompting, int minibuffer_only)
4020 {
4021 block_input ();
4022
4023 /* Use the resource name as the top-level window name
4024 for looking up resources. Make a non-Lisp copy
4025 for the window manager, so GC relocation won't bother it.
4026
4027 Elsewhere we specify the window name for the window manager. */
4028
4029 {
4030 char *str = SSDATA (Vx_resource_name);
4031 f->namebuf = xmalloc (strlen (str) + 1);
4032 strcpy (f->namebuf, str);
4033 }
4034
4035 my_create_window (f);
4036
4037 validate_x_resource_name ();
4038
4039 /* x_set_name normally ignores requests to set the name if the
4040 requested name is the same as the current name. This is the one
4041 place where that assumption isn't correct; f->name is set, but
4042 the server hasn't been told. */
4043 {
4044 Lisp_Object name;
4045 int explicit = f->explicit_name;
4046
4047 f->explicit_name = 0;
4048 name = f->name;
4049 fset_name (f, Qnil);
4050 x_set_name (f, name, explicit);
4051 }
4052
4053 unblock_input ();
4054
4055 if (!minibuffer_only && FRAME_EXTERNAL_MENU_BAR (f))
4056 initialize_frame_menubar (f);
4057
4058 if (FRAME_W32_WINDOW (f) == 0)
4059 error ("Unable to create window");
4060 }
4061
4062 /* Handle the icon stuff for this window. Perhaps later we might
4063 want an x_set_icon_position which can be called interactively as
4064 well. */
4065
4066 static void
4067 x_icon (struct frame *f, Lisp_Object parms)
4068 {
4069 Lisp_Object icon_x, icon_y;
4070 struct w32_display_info *dpyinfo = &one_w32_display_info;
4071
4072 /* Set the position of the icon. Note that Windows 95 groups all
4073 icons in the tray. */
4074 icon_x = x_get_arg (dpyinfo, parms, Qicon_left, 0, 0, RES_TYPE_NUMBER);
4075 icon_y = x_get_arg (dpyinfo, parms, Qicon_top, 0, 0, RES_TYPE_NUMBER);
4076 if (!EQ (icon_x, Qunbound) && !EQ (icon_y, Qunbound))
4077 {
4078 CHECK_NUMBER (icon_x);
4079 CHECK_NUMBER (icon_y);
4080 }
4081 else if (!EQ (icon_x, Qunbound) || !EQ (icon_y, Qunbound))
4082 error ("Both left and top icon corners of icon must be specified");
4083
4084 block_input ();
4085
4086 if (! EQ (icon_x, Qunbound))
4087 x_wm_set_icon_position (f, XINT (icon_x), XINT (icon_y));
4088
4089 #if 0 /* TODO */
4090 /* Start up iconic or window? */
4091 x_wm_set_window_state
4092 (f, (EQ (x_get_arg (dpyinfo, parms, Qvisibility, 0, 0, RES_TYPE_SYMBOL), Qicon)
4093 ? IconicState
4094 : NormalState));
4095
4096 x_text_icon (f, SSDATA ((!NILP (f->icon_name)
4097 ? f->icon_name
4098 : f->name)));
4099 #endif
4100
4101 unblock_input ();
4102 }
4103
4104
4105 static void
4106 x_make_gc (struct frame *f)
4107 {
4108 XGCValues gc_values;
4109
4110 block_input ();
4111
4112 /* Create the GC's of this frame.
4113 Note that many default values are used. */
4114
4115 /* Normal video */
4116 gc_values.font = FRAME_FONT (f);
4117
4118 /* Cursor has cursor-color background, background-color foreground. */
4119 gc_values.foreground = FRAME_BACKGROUND_PIXEL (f);
4120 gc_values.background = f->output_data.w32->cursor_pixel;
4121 f->output_data.w32->cursor_gc
4122 = XCreateGC (NULL, FRAME_W32_WINDOW (f),
4123 (GCFont | GCForeground | GCBackground),
4124 &gc_values);
4125
4126 /* Reliefs. */
4127 f->output_data.w32->white_relief.gc = 0;
4128 f->output_data.w32->black_relief.gc = 0;
4129
4130 unblock_input ();
4131 }
4132
4133
4134 /* Handler for signals raised during x_create_frame and
4135 x_create_tip_frame. FRAME is the frame which is partially
4136 constructed. */
4137
4138 static Lisp_Object
4139 unwind_create_frame (Lisp_Object frame)
4140 {
4141 struct frame *f = XFRAME (frame);
4142
4143 /* If frame is ``official'', nothing to do. */
4144 if (NILP (Fmemq (frame, Vframe_list)))
4145 {
4146 #ifdef GLYPH_DEBUG
4147 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
4148 #endif
4149
4150 x_free_frame_resources (f);
4151 free_glyphs (f);
4152
4153 #ifdef GLYPH_DEBUG
4154 /* Check that reference counts are indeed correct. */
4155 eassert (dpyinfo->reference_count == dpyinfo_refcount);
4156 eassert (dpyinfo->terminal->image_cache->refcount == image_cache_refcount);
4157 #endif
4158 return Qt;
4159 }
4160
4161 return Qnil;
4162 }
4163
4164 static void
4165 x_default_font_parameter (struct frame *f, Lisp_Object parms)
4166 {
4167 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
4168 Lisp_Object font_param = x_get_arg (dpyinfo, parms, Qfont, NULL, NULL,
4169 RES_TYPE_STRING);
4170 Lisp_Object font;
4171 if (EQ (font_param, Qunbound))
4172 font_param = Qnil;
4173 font = !NILP (font_param) ? font_param
4174 : x_get_arg (dpyinfo, parms, Qfont, "font", "Font", RES_TYPE_STRING);
4175
4176 if (!STRINGP (font))
4177 {
4178 int i;
4179 static char *names[]
4180 = { "Courier New-10",
4181 "-*-Courier-normal-r-*-*-13-*-*-*-c-*-iso8859-1",
4182 "-*-Fixedsys-normal-r-*-*-12-*-*-*-c-*-iso8859-1",
4183 "Fixedsys",
4184 NULL };
4185
4186 for (i = 0; names[i]; i++)
4187 {
4188 font = font_open_by_name (f, build_unibyte_string (names[i]));
4189 if (! NILP (font))
4190 break;
4191 }
4192 if (NILP (font))
4193 error ("No suitable font was found");
4194 }
4195 else if (!NILP (font_param))
4196 {
4197 /* Remember the explicit font parameter, so we can re-apply it after
4198 we've applied the `default' face settings. */
4199 x_set_frame_parameters (f, Fcons (Fcons (Qfont_param, font_param), Qnil));
4200 }
4201 x_default_parameter (f, parms, Qfont, font, "font", "Font", RES_TYPE_STRING);
4202 }
4203
4204 DEFUN ("x-create-frame", Fx_create_frame, Sx_create_frame,
4205 1, 1, 0,
4206 doc: /* Make a new window, which is called a \"frame\" in Emacs terms.
4207 Return an Emacs frame object.
4208 PARAMETERS is an alist of frame parameters.
4209 If the parameters specify that the frame should not have a minibuffer,
4210 and do not specify a specific minibuffer window to use,
4211 then `default-minibuffer-frame' must be a frame whose minibuffer can
4212 be shared by the new frame.
4213
4214 This function is an internal primitive--use `make-frame' instead. */)
4215 (Lisp_Object parameters)
4216 {
4217 struct frame *f;
4218 Lisp_Object frame, tem;
4219 Lisp_Object name;
4220 int minibuffer_only = 0;
4221 long window_prompting = 0;
4222 int width, height;
4223 ptrdiff_t count = SPECPDL_INDEX ();
4224 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
4225 Lisp_Object display;
4226 struct w32_display_info *dpyinfo = NULL;
4227 Lisp_Object parent;
4228 struct kboard *kb;
4229
4230 /* Make copy of frame parameters because the original is in pure
4231 storage now. */
4232 parameters = Fcopy_alist (parameters);
4233
4234 /* Use this general default value to start with
4235 until we know if this frame has a specified name. */
4236 Vx_resource_name = Vinvocation_name;
4237
4238 display = x_get_arg (dpyinfo, parameters, Qterminal, 0, 0, RES_TYPE_NUMBER);
4239 if (EQ (display, Qunbound))
4240 display = x_get_arg (dpyinfo, parameters, Qdisplay, 0, 0, RES_TYPE_STRING);
4241 if (EQ (display, Qunbound))
4242 display = Qnil;
4243 dpyinfo = check_x_display_info (display);
4244 kb = dpyinfo->terminal->kboard;
4245
4246 if (!dpyinfo->terminal->name)
4247 error ("Terminal is not live, can't create new frames on it");
4248
4249 name = x_get_arg (dpyinfo, parameters, Qname, "name", "Name", RES_TYPE_STRING);
4250 if (!STRINGP (name)
4251 && ! EQ (name, Qunbound)
4252 && ! NILP (name))
4253 error ("Invalid frame name--not a string or nil");
4254
4255 if (STRINGP (name))
4256 Vx_resource_name = name;
4257
4258 /* See if parent window is specified. */
4259 parent = x_get_arg (dpyinfo, parameters, Qparent_id, NULL, NULL, RES_TYPE_NUMBER);
4260 if (EQ (parent, Qunbound))
4261 parent = Qnil;
4262 if (! NILP (parent))
4263 CHECK_NUMBER (parent);
4264
4265 /* make_frame_without_minibuffer can run Lisp code and garbage collect. */
4266 /* No need to protect DISPLAY because that's not used after passing
4267 it to make_frame_without_minibuffer. */
4268 frame = Qnil;
4269 GCPRO4 (parameters, parent, name, frame);
4270 tem = x_get_arg (dpyinfo, parameters, Qminibuffer, "minibuffer", "Minibuffer",
4271 RES_TYPE_SYMBOL);
4272 if (EQ (tem, Qnone) || NILP (tem))
4273 f = make_frame_without_minibuffer (Qnil, kb, display);
4274 else if (EQ (tem, Qonly))
4275 {
4276 f = make_minibuffer_frame ();
4277 minibuffer_only = 1;
4278 }
4279 else if (WINDOWP (tem))
4280 f = make_frame_without_minibuffer (tem, kb, display);
4281 else
4282 f = make_frame (1);
4283
4284 XSETFRAME (frame, f);
4285
4286 /* By default, make scrollbars the system standard width. */
4287 FRAME_CONFIG_SCROLL_BAR_WIDTH (f) = GetSystemMetrics (SM_CXVSCROLL);
4288
4289 f->terminal = dpyinfo->terminal;
4290
4291 f->output_method = output_w32;
4292 f->output_data.w32 = xzalloc (sizeof (struct w32_output));
4293 FRAME_FONTSET (f) = -1;
4294
4295 fset_icon_name
4296 (f, x_get_arg (dpyinfo, parameters, Qicon_name, "iconName", "Title",
4297 RES_TYPE_STRING));
4298 if (! STRINGP (f->icon_name))
4299 fset_icon_name (f, Qnil);
4300
4301 /* FRAME_W32_DISPLAY_INFO (f) = dpyinfo; */
4302
4303 /* With FRAME_X_DISPLAY_INFO set up, this unwind-protect is safe. */
4304 record_unwind_protect (unwind_create_frame, frame);
4305 #ifdef GLYPH_DEBUG
4306 image_cache_refcount =
4307 FRAME_IMAGE_CACHE (f) ? FRAME_IMAGE_CACHE (f)->refcount : 0;
4308 dpyinfo_refcount = dpyinfo->reference_count;
4309 #endif /* GLYPH_DEBUG */
4310
4311 /* Specify the parent under which to make this window. */
4312
4313 if (!NILP (parent))
4314 {
4315 f->output_data.w32->parent_desc = (Window) XFASTINT (parent);
4316 f->output_data.w32->explicit_parent = 1;
4317 }
4318 else
4319 {
4320 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
4321 f->output_data.w32->explicit_parent = 0;
4322 }
4323
4324 /* Set the name; the functions to which we pass f expect the name to
4325 be set. */
4326 if (EQ (name, Qunbound) || NILP (name))
4327 {
4328 fset_name (f, build_string (dpyinfo->w32_id_name));
4329 f->explicit_name = 0;
4330 }
4331 else
4332 {
4333 fset_name (f, name);
4334 f->explicit_name = 1;
4335 /* use the frame's title when getting resources for this frame. */
4336 specbind (Qx_resource_name, name);
4337 }
4338
4339 if (uniscribe_available)
4340 register_font_driver (&uniscribe_font_driver, f);
4341 register_font_driver (&w32font_driver, f);
4342
4343 x_default_parameter (f, parameters, Qfont_backend, Qnil,
4344 "fontBackend", "FontBackend", RES_TYPE_STRING);
4345 /* Extract the window parameters from the supplied values
4346 that are needed to determine window geometry. */
4347 x_default_font_parameter (f, parameters);
4348 x_default_parameter (f, parameters, Qborder_width, make_number (2),
4349 "borderWidth", "BorderWidth", RES_TYPE_NUMBER);
4350
4351 /* We recognize either internalBorderWidth or internalBorder
4352 (which is what xterm calls it). */
4353 if (NILP (Fassq (Qinternal_border_width, parameters)))
4354 {
4355 Lisp_Object value;
4356
4357 value = x_get_arg (dpyinfo, parameters, Qinternal_border_width,
4358 "internalBorder", "InternalBorder", RES_TYPE_NUMBER);
4359 if (! EQ (value, Qunbound))
4360 parameters = Fcons (Fcons (Qinternal_border_width, value),
4361 parameters);
4362 }
4363 /* Default internalBorderWidth to 0 on Windows to match other programs. */
4364 x_default_parameter (f, parameters, Qinternal_border_width, make_number (0),
4365 "internalBorderWidth", "InternalBorder", RES_TYPE_NUMBER);
4366 x_default_parameter (f, parameters, Qvertical_scroll_bars, Qright,
4367 "verticalScrollBars", "ScrollBars", RES_TYPE_SYMBOL);
4368
4369 /* Also do the stuff which must be set before the window exists. */
4370 x_default_parameter (f, parameters, Qforeground_color, build_string ("black"),
4371 "foreground", "Foreground", RES_TYPE_STRING);
4372 x_default_parameter (f, parameters, Qbackground_color, build_string ("white"),
4373 "background", "Background", RES_TYPE_STRING);
4374 x_default_parameter (f, parameters, Qmouse_color, build_string ("black"),
4375 "pointerColor", "Foreground", RES_TYPE_STRING);
4376 x_default_parameter (f, parameters, Qborder_color, build_string ("black"),
4377 "borderColor", "BorderColor", RES_TYPE_STRING);
4378 x_default_parameter (f, parameters, Qscreen_gamma, Qnil,
4379 "screenGamma", "ScreenGamma", RES_TYPE_FLOAT);
4380 x_default_parameter (f, parameters, Qline_spacing, Qnil,
4381 "lineSpacing", "LineSpacing", RES_TYPE_NUMBER);
4382 x_default_parameter (f, parameters, Qleft_fringe, Qnil,
4383 "leftFringe", "LeftFringe", RES_TYPE_NUMBER);
4384 x_default_parameter (f, parameters, Qright_fringe, Qnil,
4385 "rightFringe", "RightFringe", RES_TYPE_NUMBER);
4386
4387 /* Init faces before x_default_parameter is called for scroll-bar
4388 parameters because that function calls x_set_scroll_bar_width,
4389 which calls change_frame_size, which calls Fset_window_buffer,
4390 which runs hooks, which call Fvertical_motion. At the end, we
4391 end up in init_iterator with a null face cache, which should not
4392 happen. */
4393 init_frame_faces (f);
4394
4395 /* The X resources controlling the menu-bar and tool-bar are
4396 processed specially at startup, and reflected in the mode
4397 variables; ignore them here. */
4398 x_default_parameter (f, parameters, Qmenu_bar_lines,
4399 NILP (Vmenu_bar_mode)
4400 ? make_number (0) : make_number (1),
4401 NULL, NULL, RES_TYPE_NUMBER);
4402 x_default_parameter (f, parameters, Qtool_bar_lines,
4403 NILP (Vtool_bar_mode)
4404 ? make_number (0) : make_number (1),
4405 NULL, NULL, RES_TYPE_NUMBER);
4406
4407 x_default_parameter (f, parameters, Qbuffer_predicate, Qnil,
4408 "bufferPredicate", "BufferPredicate", RES_TYPE_SYMBOL);
4409 x_default_parameter (f, parameters, Qtitle, Qnil,
4410 "title", "Title", RES_TYPE_STRING);
4411 x_default_parameter (f, parameters, Qfullscreen, Qnil,
4412 "fullscreen", "Fullscreen", RES_TYPE_SYMBOL);
4413
4414 f->output_data.w32->dwStyle = WS_OVERLAPPEDWINDOW;
4415 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
4416
4417 f->output_data.w32->text_cursor = w32_load_cursor (IDC_IBEAM);
4418 f->output_data.w32->nontext_cursor = w32_load_cursor (IDC_ARROW);
4419 f->output_data.w32->modeline_cursor = w32_load_cursor (IDC_ARROW);
4420 f->output_data.w32->hand_cursor = w32_load_cursor (IDC_HAND);
4421 f->output_data.w32->hourglass_cursor = w32_load_cursor (IDC_WAIT);
4422 f->output_data.w32->horizontal_drag_cursor = w32_load_cursor (IDC_SIZEWE);
4423
4424 f->output_data.w32->current_cursor = f->output_data.w32->nontext_cursor;
4425
4426 window_prompting = x_figure_window_size (f, parameters, 1);
4427
4428 tem = x_get_arg (dpyinfo, parameters, Qunsplittable, 0, 0, RES_TYPE_BOOLEAN);
4429 f->no_split = minibuffer_only || EQ (tem, Qt);
4430
4431 w32_window (f, window_prompting, minibuffer_only);
4432 x_icon (f, parameters);
4433
4434 x_make_gc (f);
4435
4436 /* Now consider the frame official. */
4437 f->terminal->reference_count++;
4438 FRAME_W32_DISPLAY_INFO (f)->reference_count++;
4439 Vframe_list = Fcons (frame, Vframe_list);
4440
4441 /* We need to do this after creating the window, so that the
4442 icon-creation functions can say whose icon they're describing. */
4443 x_default_parameter (f, parameters, Qicon_type, Qnil,
4444 "bitmapIcon", "BitmapIcon", RES_TYPE_SYMBOL);
4445
4446 x_default_parameter (f, parameters, Qauto_raise, Qnil,
4447 "autoRaise", "AutoRaiseLower", RES_TYPE_BOOLEAN);
4448 x_default_parameter (f, parameters, Qauto_lower, Qnil,
4449 "autoLower", "AutoRaiseLower", RES_TYPE_BOOLEAN);
4450 x_default_parameter (f, parameters, Qcursor_type, Qbox,
4451 "cursorType", "CursorType", RES_TYPE_SYMBOL);
4452 x_default_parameter (f, parameters, Qscroll_bar_width, Qnil,
4453 "scrollBarWidth", "ScrollBarWidth", RES_TYPE_NUMBER);
4454 x_default_parameter (f, parameters, Qalpha, Qnil,
4455 "alpha", "Alpha", RES_TYPE_NUMBER);
4456
4457 /* Dimensions, especially FRAME_LINES (f), must be done via change_frame_size.
4458 Change will not be effected unless different from the current
4459 FRAME_LINES (f). */
4460 width = FRAME_COLS (f);
4461 height = FRAME_LINES (f);
4462
4463 FRAME_LINES (f) = 0;
4464 SET_FRAME_COLS (f, 0);
4465 change_frame_size (f, height, width, 1, 0, 0);
4466
4467 /* Tell the server what size and position, etc, we want, and how
4468 badly we want them. This should be done after we have the menu
4469 bar so that its size can be taken into account. */
4470 block_input ();
4471 x_wm_set_size_hint (f, window_prompting, 0);
4472 unblock_input ();
4473
4474 /* Make the window appear on the frame and enable display, unless
4475 the caller says not to. However, with explicit parent, Emacs
4476 cannot control visibility, so don't try. */
4477 if (! f->output_data.w32->explicit_parent)
4478 {
4479 Lisp_Object visibility;
4480
4481 visibility = x_get_arg (dpyinfo, parameters, Qvisibility, 0, 0, RES_TYPE_SYMBOL);
4482 if (EQ (visibility, Qunbound))
4483 visibility = Qt;
4484
4485 if (EQ (visibility, Qicon))
4486 x_iconify_frame (f);
4487 else if (! NILP (visibility))
4488 x_make_frame_visible (f);
4489 else
4490 /* Must have been Qnil. */
4491 ;
4492 }
4493
4494 /* Initialize `default-minibuffer-frame' in case this is the first
4495 frame on this terminal. */
4496 if (FRAME_HAS_MINIBUF_P (f)
4497 && (!FRAMEP (KVAR (kb, Vdefault_minibuffer_frame))
4498 || !FRAME_LIVE_P (XFRAME (KVAR (kb, Vdefault_minibuffer_frame)))))
4499 kset_default_minibuffer_frame (kb, frame);
4500
4501 /* All remaining specified parameters, which have not been "used"
4502 by x_get_arg and friends, now go in the misc. alist of the frame. */
4503 for (tem = parameters; CONSP (tem); tem = XCDR (tem))
4504 if (CONSP (XCAR (tem)) && !NILP (XCAR (XCAR (tem))))
4505 fset_param_alist (f, Fcons (XCAR (tem), f->param_alist));
4506
4507 UNGCPRO;
4508
4509 /* Make sure windows on this frame appear in calls to next-window
4510 and similar functions. */
4511 Vwindow_list = Qnil;
4512
4513 return unbind_to (count, frame);
4514 }
4515
4516 /* FRAME is used only to get a handle on the X display. We don't pass the
4517 display info directly because we're called from frame.c, which doesn't
4518 know about that structure. */
4519 Lisp_Object
4520 x_get_focus_frame (struct frame *frame)
4521 {
4522 struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (frame);
4523 Lisp_Object xfocus;
4524 if (! dpyinfo->w32_focus_frame)
4525 return Qnil;
4526
4527 XSETFRAME (xfocus, dpyinfo->w32_focus_frame);
4528 return xfocus;
4529 }
4530
4531 DEFUN ("x-focus-frame", Fx_focus_frame, Sx_focus_frame, 1, 1, 0,
4532 doc: /* Give FRAME input focus, raising to foreground if necessary. */)
4533 (Lisp_Object frame)
4534 {
4535 x_focus_on_frame (decode_window_system_frame (frame));
4536 return Qnil;
4537 }
4538
4539 \f
4540 DEFUN ("xw-color-defined-p", Fxw_color_defined_p, Sxw_color_defined_p, 1, 2, 0,
4541 doc: /* Internal function called by `color-defined-p', which see.
4542 \(Note that the Nextstep version of this function ignores FRAME.) */)
4543 (Lisp_Object color, Lisp_Object frame)
4544 {
4545 XColor foo;
4546 FRAME_PTR f = decode_window_system_frame (frame);
4547
4548 CHECK_STRING (color);
4549
4550 if (w32_defined_color (f, SDATA (color), &foo, 0))
4551 return Qt;
4552 else
4553 return Qnil;
4554 }
4555
4556 DEFUN ("xw-color-values", Fxw_color_values, Sxw_color_values, 1, 2, 0,
4557 doc: /* Internal function called by `color-values', which see. */)
4558 (Lisp_Object color, Lisp_Object frame)
4559 {
4560 XColor foo;
4561 FRAME_PTR f = decode_window_system_frame (frame);
4562
4563 CHECK_STRING (color);
4564
4565 if (w32_defined_color (f, SDATA (color), &foo, 0))
4566 return list3i ((GetRValue (foo.pixel) << 8) | GetRValue (foo.pixel),
4567 (GetGValue (foo.pixel) << 8) | GetGValue (foo.pixel),
4568 (GetBValue (foo.pixel) << 8) | GetBValue (foo.pixel));
4569 else
4570 return Qnil;
4571 }
4572
4573 DEFUN ("xw-display-color-p", Fxw_display_color_p, Sxw_display_color_p, 0, 1, 0,
4574 doc: /* Internal function called by `display-color-p', which see. */)
4575 (Lisp_Object display)
4576 {
4577 struct w32_display_info *dpyinfo = check_x_display_info (display);
4578
4579 if ((dpyinfo->n_planes * dpyinfo->n_cbits) <= 2)
4580 return Qnil;
4581
4582 return Qt;
4583 }
4584
4585 DEFUN ("x-display-grayscale-p", Fx_display_grayscale_p,
4586 Sx_display_grayscale_p, 0, 1, 0,
4587 doc: /* Return t if DISPLAY supports shades of gray.
4588 Note that color displays do support shades of gray.
4589 The optional argument DISPLAY specifies which display to ask about.
4590 DISPLAY should be either a frame or a display name (a string).
4591 If omitted or nil, that stands for the selected frame's display. */)
4592 (Lisp_Object display)
4593 {
4594 struct w32_display_info *dpyinfo = check_x_display_info (display);
4595
4596 if ((dpyinfo->n_planes * dpyinfo->n_cbits) <= 1)
4597 return Qnil;
4598
4599 return Qt;
4600 }
4601
4602 DEFUN ("x-display-pixel-width", Fx_display_pixel_width,
4603 Sx_display_pixel_width, 0, 1, 0,
4604 doc: /* Return the width in pixels of DISPLAY.
4605 The optional argument DISPLAY specifies which display to ask about.
4606 DISPLAY should be either a frame or a display name (a string).
4607 If omitted or nil, that stands for the selected frame's display. */)
4608 (Lisp_Object display)
4609 {
4610 struct w32_display_info *dpyinfo = check_x_display_info (display);
4611
4612 return make_number (x_display_pixel_width (dpyinfo));
4613 }
4614
4615 DEFUN ("x-display-pixel-height", Fx_display_pixel_height,
4616 Sx_display_pixel_height, 0, 1, 0,
4617 doc: /* Return the height in pixels of DISPLAY.
4618 The optional argument DISPLAY specifies which display to ask about.
4619 DISPLAY should be either a frame or a display name (a string).
4620 If omitted or nil, that stands for the selected frame's display. */)
4621 (Lisp_Object display)
4622 {
4623 struct w32_display_info *dpyinfo = check_x_display_info (display);
4624
4625 return make_number (x_display_pixel_height (dpyinfo));
4626 }
4627
4628 DEFUN ("x-display-planes", Fx_display_planes, Sx_display_planes,
4629 0, 1, 0,
4630 doc: /* Return the number of bitplanes of DISPLAY.
4631 The optional argument DISPLAY specifies which display to ask about.
4632 DISPLAY should be either a frame or a display name (a string).
4633 If omitted or nil, that stands for the selected frame's display. */)
4634 (Lisp_Object display)
4635 {
4636 struct w32_display_info *dpyinfo = check_x_display_info (display);
4637
4638 return make_number (dpyinfo->n_planes * dpyinfo->n_cbits);
4639 }
4640
4641 DEFUN ("x-display-color-cells", Fx_display_color_cells, Sx_display_color_cells,
4642 0, 1, 0,
4643 doc: /* Return the number of color cells of DISPLAY.
4644 The optional argument DISPLAY specifies which display to ask about.
4645 DISPLAY should be either a frame or a display name (a string).
4646 If omitted or nil, that stands for the selected frame's display. */)
4647 (Lisp_Object display)
4648 {
4649 struct w32_display_info *dpyinfo = check_x_display_info (display);
4650 int cap;
4651
4652 /* Don't use NCOLORS: it returns incorrect results under remote
4653 * desktop. We force 24+ bit depths to 24-bit, both to prevent an
4654 * overflow and because probably is more meaningful on Windows
4655 * anyway. */
4656
4657 cap = 1 << min (dpyinfo->n_planes * dpyinfo->n_cbits, 24);
4658 return make_number (cap);
4659 }
4660
4661 DEFUN ("x-server-max-request-size", Fx_server_max_request_size,
4662 Sx_server_max_request_size,
4663 0, 1, 0,
4664 doc: /* Return the maximum request size of the server of DISPLAY.
4665 The optional argument DISPLAY specifies which display to ask about.
4666 DISPLAY should be either a frame or a display name (a string).
4667 If omitted or nil, that stands for the selected frame's display. */)
4668 (Lisp_Object display)
4669 {
4670 return make_number (1);
4671 }
4672
4673 DEFUN ("x-server-vendor", Fx_server_vendor, Sx_server_vendor, 0, 1, 0,
4674 doc: /* Return the "vendor ID" string of the W32 system (Microsoft).
4675 The optional argument DISPLAY specifies which display to ask about.
4676 DISPLAY should be either a frame or a display name (a string).
4677 If omitted or nil, that stands for the selected frame's display. */)
4678 (Lisp_Object display)
4679 {
4680 return build_string ("Microsoft Corp.");
4681 }
4682
4683 DEFUN ("x-server-version", Fx_server_version, Sx_server_version, 0, 1, 0,
4684 doc: /* Return the version numbers of the server of DISPLAY.
4685 The value is a list of three integers: the major and minor
4686 version numbers of the X Protocol in use, and the distributor-specific
4687 release number. See also the function `x-server-vendor'.
4688
4689 The optional argument DISPLAY specifies which display to ask about.
4690 DISPLAY should be either a frame or a display name (a string).
4691 If omitted or nil, that stands for the selected frame's display. */)
4692 (Lisp_Object display)
4693 {
4694 return list3i (w32_major_version, w32_minor_version, w32_build_number);
4695 }
4696
4697 DEFUN ("x-display-screens", Fx_display_screens, Sx_display_screens, 0, 1, 0,
4698 doc: /* Return the number of screens on the server of DISPLAY.
4699 The optional argument DISPLAY specifies which display to ask about.
4700 DISPLAY should be either a frame or a display name (a string).
4701 If omitted or nil, that stands for the selected frame's display. */)
4702 (Lisp_Object display)
4703 {
4704 return make_number (1);
4705 }
4706
4707 DEFUN ("x-display-mm-height", Fx_display_mm_height,
4708 Sx_display_mm_height, 0, 1, 0,
4709 doc: /* Return the height in millimeters of DISPLAY.
4710 The optional argument DISPLAY specifies which display to ask about.
4711 DISPLAY should be either a frame or a display name (a string).
4712 If omitted or nil, that stands for the selected frame's display. */)
4713 (Lisp_Object display)
4714 {
4715 struct w32_display_info *dpyinfo = check_x_display_info (display);
4716 HDC hdc;
4717 int cap;
4718
4719 hdc = GetDC (dpyinfo->root_window);
4720
4721 cap = GetDeviceCaps (hdc, VERTSIZE);
4722
4723 ReleaseDC (dpyinfo->root_window, hdc);
4724
4725 return make_number (cap);
4726 }
4727
4728 DEFUN ("x-display-mm-width", Fx_display_mm_width, Sx_display_mm_width, 0, 1, 0,
4729 doc: /* Return the width in millimeters of DISPLAY.
4730 The optional argument DISPLAY specifies which display to ask about.
4731 DISPLAY should be either a frame or a display name (a string).
4732 If omitted or nil, that stands for the selected frame's display. */)
4733 (Lisp_Object display)
4734 {
4735 struct w32_display_info *dpyinfo = check_x_display_info (display);
4736
4737 HDC hdc;
4738 int cap;
4739
4740 hdc = GetDC (dpyinfo->root_window);
4741
4742 cap = GetDeviceCaps (hdc, HORZSIZE);
4743
4744 ReleaseDC (dpyinfo->root_window, hdc);
4745
4746 return make_number (cap);
4747 }
4748
4749 DEFUN ("x-display-backing-store", Fx_display_backing_store,
4750 Sx_display_backing_store, 0, 1, 0,
4751 doc: /* Return an indication of whether DISPLAY does backing store.
4752 The value may be `always', `when-mapped', or `not-useful'.
4753 The optional argument DISPLAY specifies which display to ask about.
4754 DISPLAY should be either a frame or a display name (a string).
4755 If omitted or nil, that stands for the selected frame's display. */)
4756 (Lisp_Object display)
4757 {
4758 return intern ("not-useful");
4759 }
4760
4761 DEFUN ("x-display-visual-class", Fx_display_visual_class,
4762 Sx_display_visual_class, 0, 1, 0,
4763 doc: /* Return the visual class of DISPLAY.
4764 The value is one of the symbols `static-gray', `gray-scale',
4765 `static-color', `pseudo-color', `true-color', or `direct-color'.
4766
4767 The optional argument DISPLAY specifies which display to ask about.
4768 DISPLAY should be either a frame or a display name (a string).
4769 If omitted or nil, that stands for the selected frame's display. */)
4770 (Lisp_Object display)
4771 {
4772 struct w32_display_info *dpyinfo = check_x_display_info (display);
4773 Lisp_Object result = Qnil;
4774
4775 if (dpyinfo->has_palette)
4776 result = intern ("pseudo-color");
4777 else if (dpyinfo->n_planes * dpyinfo->n_cbits == 1)
4778 result = intern ("static-grey");
4779 else if (dpyinfo->n_planes * dpyinfo->n_cbits == 4)
4780 result = intern ("static-color");
4781 else if (dpyinfo->n_planes * dpyinfo->n_cbits > 8)
4782 result = intern ("true-color");
4783
4784 return result;
4785 }
4786
4787 DEFUN ("x-display-save-under", Fx_display_save_under,
4788 Sx_display_save_under, 0, 1, 0,
4789 doc: /* Return t if DISPLAY supports the save-under feature.
4790 The optional argument DISPLAY specifies which display to ask about.
4791 DISPLAY should be either a frame or a display name (a string).
4792 If omitted or nil, that stands for the selected frame's display. */)
4793 (Lisp_Object display)
4794 {
4795 return Qnil;
4796 }
4797
4798 DEFUN ("set-message-beep", Fset_message_beep, Sset_message_beep, 1, 1, 0,
4799 doc: /* Set the sound generated when the bell is rung.
4800 SOUND is 'asterisk, 'exclamation, 'hand, 'question, 'ok, or 'silent
4801 to use the corresponding system sound for the bell. The 'silent sound
4802 prevents Emacs from making any sound at all.
4803 SOUND is nil to use the normal beep. */)
4804 (Lisp_Object sound)
4805 {
4806 CHECK_SYMBOL (sound);
4807
4808 if (NILP (sound))
4809 sound_type = 0xFFFFFFFF;
4810 else if (EQ (sound, intern ("asterisk")))
4811 sound_type = MB_ICONASTERISK;
4812 else if (EQ (sound, intern ("exclamation")))
4813 sound_type = MB_ICONEXCLAMATION;
4814 else if (EQ (sound, intern ("hand")))
4815 sound_type = MB_ICONHAND;
4816 else if (EQ (sound, intern ("question")))
4817 sound_type = MB_ICONQUESTION;
4818 else if (EQ (sound, intern ("ok")))
4819 sound_type = MB_OK;
4820 else if (EQ (sound, intern ("silent")))
4821 sound_type = MB_EMACS_SILENT;
4822 else
4823 sound_type = 0xFFFFFFFF;
4824
4825 return sound;
4826 }
4827
4828 \f
4829 int
4830 x_pixel_width (register struct frame *f)
4831 {
4832 return FRAME_PIXEL_WIDTH (f);
4833 }
4834
4835 int
4836 x_pixel_height (register struct frame *f)
4837 {
4838 return FRAME_PIXEL_HEIGHT (f);
4839 }
4840
4841 int
4842 x_screen_planes (register struct frame *f)
4843 {
4844 return FRAME_W32_DISPLAY_INFO (f)->n_planes;
4845 }
4846 \f
4847 /* Return the display structure for the display named NAME.
4848 Open a new connection if necessary. */
4849
4850 struct w32_display_info *
4851 x_display_info_for_name (Lisp_Object name)
4852 {
4853 Lisp_Object names;
4854 struct w32_display_info *dpyinfo;
4855
4856 CHECK_STRING (name);
4857
4858 for (dpyinfo = &one_w32_display_info, names = w32_display_name_list;
4859 dpyinfo && !NILP (w32_display_name_list);
4860 dpyinfo = dpyinfo->next, names = XCDR (names))
4861 {
4862 Lisp_Object tem;
4863 tem = Fstring_equal (XCAR (XCAR (names)), name);
4864 if (!NILP (tem))
4865 return dpyinfo;
4866 }
4867
4868 /* Use this general default value to start with. */
4869 Vx_resource_name = Vinvocation_name;
4870
4871 validate_x_resource_name ();
4872
4873 dpyinfo = w32_term_init (name, (unsigned char *)0,
4874 SSDATA (Vx_resource_name));
4875
4876 if (dpyinfo == 0)
4877 error ("Cannot connect to server %s", SDATA (name));
4878
4879 XSETFASTINT (Vwindow_system_version, w32_major_version);
4880
4881 return dpyinfo;
4882 }
4883
4884 DEFUN ("x-open-connection", Fx_open_connection, Sx_open_connection,
4885 1, 3, 0, doc: /* Open a connection to a display server.
4886 DISPLAY is the name of the display to connect to.
4887 Optional second arg XRM-STRING is a string of resources in xrdb format.
4888 If the optional third arg MUST-SUCCEED is non-nil,
4889 terminate Emacs if we can't open the connection.
4890 \(In the Nextstep version, the last two arguments are currently ignored.) */)
4891 (Lisp_Object display, Lisp_Object xrm_string, Lisp_Object must_succeed)
4892 {
4893 unsigned char *xrm_option;
4894 struct w32_display_info *dpyinfo;
4895
4896 CHECK_STRING (display);
4897
4898 /* Signal an error in order to encourage correct use from callers.
4899 * If we ever support multiple window systems in the same Emacs,
4900 * we'll need callers to be precise about what window system they
4901 * want. */
4902
4903 if (strcmp (SSDATA (display), "w32") != 0)
4904 error ("The name of the display in this Emacs must be \"w32\"");
4905
4906 /* If initialization has already been done, return now to avoid
4907 overwriting critical parts of one_w32_display_info. */
4908 if (window_system_available (NULL))
4909 return Qnil;
4910
4911 if (! NILP (xrm_string))
4912 CHECK_STRING (xrm_string);
4913
4914 #if 0
4915 if (! EQ (Vwindow_system, intern ("w32")))
4916 error ("Not using Microsoft Windows");
4917 #endif
4918
4919 /* Allow color mapping to be defined externally; first look in user's
4920 HOME directory, then in Emacs etc dir for a file called rgb.txt. */
4921 {
4922 Lisp_Object color_file;
4923 struct gcpro gcpro1;
4924
4925 color_file = build_string ("~/rgb.txt");
4926
4927 GCPRO1 (color_file);
4928
4929 if (NILP (Ffile_readable_p (color_file)))
4930 color_file =
4931 Fexpand_file_name (build_string ("rgb.txt"),
4932 Fsymbol_value (intern ("data-directory")));
4933
4934 Vw32_color_map = Fx_load_color_file (color_file);
4935
4936 UNGCPRO;
4937 }
4938 if (NILP (Vw32_color_map))
4939 Vw32_color_map = w32_default_color_map ();
4940
4941 /* Merge in system logical colors. */
4942 add_system_logical_colors_to_map (&Vw32_color_map);
4943
4944 if (! NILP (xrm_string))
4945 xrm_option = SDATA (xrm_string);
4946 else
4947 xrm_option = (unsigned char *) 0;
4948
4949 /* Use this general default value to start with. */
4950 /* First remove .exe suffix from invocation-name - it looks ugly. */
4951 {
4952 char basename[ MAX_PATH ], *str;
4953
4954 strcpy (basename, SDATA (Vinvocation_name));
4955 str = strrchr (basename, '.');
4956 if (str) *str = 0;
4957 Vinvocation_name = build_string (basename);
4958 }
4959 Vx_resource_name = Vinvocation_name;
4960
4961 validate_x_resource_name ();
4962
4963 /* This is what opens the connection and sets x_current_display.
4964 This also initializes many symbols, such as those used for input. */
4965 dpyinfo = w32_term_init (display, xrm_option,
4966 SSDATA (Vx_resource_name));
4967
4968 if (dpyinfo == 0)
4969 {
4970 if (!NILP (must_succeed))
4971 fatal ("Cannot connect to server %s.\n",
4972 SDATA (display));
4973 else
4974 error ("Cannot connect to server %s", SDATA (display));
4975 }
4976
4977 XSETFASTINT (Vwindow_system_version, w32_major_version);
4978 return Qnil;
4979 }
4980
4981 DEFUN ("x-close-connection", Fx_close_connection,
4982 Sx_close_connection, 1, 1, 0,
4983 doc: /* Close the connection to DISPLAY's server.
4984 For DISPLAY, specify either a frame or a display name (a string).
4985 If DISPLAY is nil, that stands for the selected frame's display. */)
4986 (Lisp_Object display)
4987 {
4988 struct w32_display_info *dpyinfo = check_x_display_info (display);
4989
4990 if (dpyinfo->reference_count > 0)
4991 error ("Display still has frames on it");
4992
4993 block_input ();
4994 x_destroy_all_bitmaps (dpyinfo);
4995
4996 x_delete_display (dpyinfo);
4997 unblock_input ();
4998
4999 return Qnil;
5000 }
5001
5002 DEFUN ("x-display-list", Fx_display_list, Sx_display_list, 0, 0, 0,
5003 doc: /* Return the list of display names that Emacs has connections to. */)
5004 (void)
5005 {
5006 Lisp_Object tail, result;
5007
5008 result = Qnil;
5009 for (tail = w32_display_name_list; CONSP (tail); tail = XCDR (tail))
5010 result = Fcons (XCAR (XCAR (tail)), result);
5011
5012 return result;
5013 }
5014
5015 DEFUN ("x-synchronize", Fx_synchronize, Sx_synchronize, 1, 2, 0,
5016 doc: /* If ON is non-nil, report X errors as soon as the erring request is made.
5017 This function only has an effect on X Windows. With MS Windows, it is
5018 defined but does nothing.
5019
5020 If ON is nil, allow buffering of requests.
5021 Turning on synchronization prohibits the Xlib routines from buffering
5022 requests and seriously degrades performance, but makes debugging much
5023 easier.
5024 The optional second argument TERMINAL specifies which display to act on.
5025 TERMINAL should be a terminal object, a frame or a display name (a string).
5026 If TERMINAL is omitted or nil, that stands for the selected frame's display. */)
5027 (Lisp_Object on, Lisp_Object display)
5028 {
5029 return Qnil;
5030 }
5031
5032
5033 \f
5034 /***********************************************************************
5035 Window properties
5036 ***********************************************************************/
5037
5038 #if 0 /* TODO : port window properties to W32 */
5039
5040 DEFUN ("x-change-window-property", Fx_change_window_property,
5041 Sx_change_window_property, 2, 6, 0,
5042 doc: /* Change window property PROP to VALUE on the X window of FRAME.
5043 PROP must be a string. VALUE may be a string or a list of conses,
5044 numbers and/or strings. If an element in the list is a string, it is
5045 converted to an atom and the value of the Atom is used. If an element
5046 is a cons, it is converted to a 32 bit number where the car is the 16
5047 top bits and the cdr is the lower 16 bits.
5048
5049 FRAME nil or omitted means use the selected frame.
5050 If TYPE is given and non-nil, it is the name of the type of VALUE.
5051 If TYPE is not given or nil, the type is STRING.
5052 FORMAT gives the size in bits of each element if VALUE is a list.
5053 It must be one of 8, 16 or 32.
5054 If VALUE is a string or FORMAT is nil or not given, FORMAT defaults to 8.
5055 If OUTER-P is non-nil, the property is changed for the outer X window of
5056 FRAME. Default is to change on the edit X window. */)
5057 (Lisp_Object prop, Lisp_Object value, Lisp_Object frame,
5058 Lisp_Object type, Lisp_Object format, Lisp_Object outer_p)
5059 {
5060 struct frame *f = decode_window_system_frame (frame);
5061 Atom prop_atom;
5062
5063 CHECK_STRING (prop);
5064 CHECK_STRING (value);
5065
5066 block_input ();
5067 prop_atom = XInternAtom (FRAME_W32_DISPLAY (f), SDATA (prop), False);
5068 XChangeProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
5069 prop_atom, XA_STRING, 8, PropModeReplace,
5070 SDATA (value), SCHARS (value));
5071
5072 /* Make sure the property is set when we return. */
5073 XFlush (FRAME_W32_DISPLAY (f));
5074 unblock_input ();
5075
5076 return value;
5077 }
5078
5079
5080 DEFUN ("x-delete-window-property", Fx_delete_window_property,
5081 Sx_delete_window_property, 1, 2, 0,
5082 doc: /* Remove window property PROP from X window of FRAME.
5083 FRAME nil or omitted means use the selected frame. Value is PROP. */)
5084 (Lisp_Object prop, Lisp_Object frame)
5085 {
5086 struct frame *f = decode_window_system_frame (frame);
5087 Atom prop_atom;
5088
5089 CHECK_STRING (prop);
5090 block_input ();
5091 prop_atom = XInternAtom (FRAME_W32_DISPLAY (f), SDATA (prop), False);
5092 XDeleteProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f), prop_atom);
5093
5094 /* Make sure the property is removed when we return. */
5095 XFlush (FRAME_W32_DISPLAY (f));
5096 unblock_input ();
5097
5098 return prop;
5099 }
5100
5101
5102 DEFUN ("x-window-property", Fx_window_property, Sx_window_property,
5103 1, 6, 0,
5104 doc: /* Value is the value of window property PROP on FRAME.
5105 If FRAME is nil or omitted, use the selected frame.
5106
5107 On X Windows, the following optional arguments are also accepted:
5108 If TYPE is nil or omitted, get the property as a string.
5109 Otherwise TYPE is the name of the atom that denotes the type expected.
5110 If SOURCE is non-nil, get the property on that window instead of from
5111 FRAME. The number 0 denotes the root window.
5112 If DELETE-P is non-nil, delete the property after retrieving it.
5113 If VECTOR-RET-P is non-nil, don't return a string but a vector of values.
5114
5115 On MS Windows, this function accepts but ignores those optional arguments.
5116
5117 Value is nil if FRAME hasn't a property with name PROP or if PROP has
5118 no value of TYPE (always string in the MS Windows case). */)
5119 (Lisp_Object prop, Lisp_Object frame, Lisp_Object type,
5120 Lisp_Object source, Lisp_Object delete_p, Lisp_Object vector_ret_p)
5121 {
5122 struct frame *f = decode_window_system_frame (frame);
5123 Atom prop_atom;
5124 int rc;
5125 Lisp_Object prop_value = Qnil;
5126 char *tmp_data = NULL;
5127 Atom actual_type;
5128 int actual_format;
5129 unsigned long actual_size, bytes_remaining;
5130
5131 CHECK_STRING (prop);
5132 block_input ();
5133 prop_atom = XInternAtom (FRAME_W32_DISPLAY (f), SDATA (prop), False);
5134 rc = XGetWindowProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
5135 prop_atom, 0, 0, False, XA_STRING,
5136 &actual_type, &actual_format, &actual_size,
5137 &bytes_remaining, (unsigned char **) &tmp_data);
5138 if (rc == Success)
5139 {
5140 int size = bytes_remaining;
5141
5142 XFree (tmp_data);
5143 tmp_data = NULL;
5144
5145 rc = XGetWindowProperty (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
5146 prop_atom, 0, bytes_remaining,
5147 False, XA_STRING,
5148 &actual_type, &actual_format,
5149 &actual_size, &bytes_remaining,
5150 (unsigned char **) &tmp_data);
5151 if (rc == Success)
5152 prop_value = make_string (tmp_data, size);
5153
5154 XFree (tmp_data);
5155 }
5156
5157 unblock_input ();
5158
5159 return prop_value;
5160
5161 return Qnil;
5162 }
5163
5164 #endif /* TODO */
5165
5166 \f
5167 /***********************************************************************
5168 Busy cursor
5169 ***********************************************************************/
5170
5171 void
5172 w32_note_current_window (void)
5173 {
5174 struct frame * f = SELECTED_FRAME ();
5175
5176 if (!FRAME_W32_P (f))
5177 return;
5178
5179 hourglass_hwnd = FRAME_W32_WINDOW (f);
5180 }
5181
5182 void
5183 show_hourglass (struct atimer *timer)
5184 {
5185 struct frame *f;
5186
5187 hourglass_atimer = NULL;
5188
5189 block_input ();
5190 f = x_window_to_frame (&one_w32_display_info,
5191 hourglass_hwnd);
5192
5193 if (f)
5194 f->output_data.w32->hourglass_p = 0;
5195 else
5196 f = SELECTED_FRAME ();
5197
5198 if (!FRAME_W32_P (f))
5199 return;
5200
5201 w32_show_hourglass (f);
5202 unblock_input ();
5203 }
5204
5205 void
5206 hide_hourglass (void)
5207 {
5208 block_input ();
5209 w32_hide_hourglass ();
5210 unblock_input ();
5211 }
5212
5213
5214 /* Display an hourglass cursor. Set the hourglass_p flag in display info
5215 to indicate that an hourglass cursor is shown. */
5216
5217 static void
5218 w32_show_hourglass (struct frame *f)
5219 {
5220 if (!hourglass_shown_p)
5221 {
5222 f->output_data.w32->hourglass_p = 1;
5223 if (!menubar_in_use && !current_popup_menu)
5224 SetCursor (f->output_data.w32->hourglass_cursor);
5225 hourglass_shown_p = 1;
5226 }
5227 }
5228
5229
5230 /* Hide the hourglass cursor on all frames, if it is currently shown. */
5231
5232 static void
5233 w32_hide_hourglass (void)
5234 {
5235 if (hourglass_shown_p)
5236 {
5237 struct frame *f = x_window_to_frame (&one_w32_display_info,
5238 hourglass_hwnd);
5239 if (f)
5240 f->output_data.w32->hourglass_p = 0;
5241 else
5242 /* If frame was deleted, restore to selected frame's cursor. */
5243 f = SELECTED_FRAME ();
5244
5245 if (FRAME_W32_P (f))
5246 SetCursor (f->output_data.w32->current_cursor);
5247 else
5248 /* No cursors on non GUI frames - restore to stock arrow cursor. */
5249 SetCursor (w32_load_cursor (IDC_ARROW));
5250
5251 hourglass_shown_p = 0;
5252 }
5253 }
5254
5255
5256 \f
5257 /***********************************************************************
5258 Tool tips
5259 ***********************************************************************/
5260
5261 static Lisp_Object x_create_tip_frame (struct w32_display_info *,
5262 Lisp_Object, Lisp_Object);
5263 static void compute_tip_xy (struct frame *, Lisp_Object, Lisp_Object,
5264 Lisp_Object, int, int, int *, int *);
5265
5266 /* The frame of a currently visible tooltip. */
5267
5268 Lisp_Object tip_frame;
5269
5270 /* If non-nil, a timer started that hides the last tooltip when it
5271 fires. */
5272
5273 Lisp_Object tip_timer;
5274 Window tip_window;
5275
5276 /* If non-nil, a vector of 3 elements containing the last args
5277 with which x-show-tip was called. See there. */
5278
5279 Lisp_Object last_show_tip_args;
5280
5281
5282 static Lisp_Object
5283 unwind_create_tip_frame (Lisp_Object frame)
5284 {
5285 Lisp_Object deleted;
5286
5287 deleted = unwind_create_frame (frame);
5288 if (EQ (deleted, Qt))
5289 {
5290 tip_window = NULL;
5291 tip_frame = Qnil;
5292 }
5293
5294 return deleted;
5295 }
5296
5297
5298 /* Create a frame for a tooltip on the display described by DPYINFO.
5299 PARMS is a list of frame parameters. TEXT is the string to
5300 display in the tip frame. Value is the frame.
5301
5302 Note that functions called here, esp. x_default_parameter can
5303 signal errors, for instance when a specified color name is
5304 undefined. We have to make sure that we're in a consistent state
5305 when this happens. */
5306
5307 static Lisp_Object
5308 x_create_tip_frame (struct w32_display_info *dpyinfo,
5309 Lisp_Object parms, Lisp_Object text)
5310 {
5311 struct frame *f;
5312 Lisp_Object frame;
5313 Lisp_Object name;
5314 long window_prompting = 0;
5315 int width, height;
5316 ptrdiff_t count = SPECPDL_INDEX ();
5317 struct gcpro gcpro1, gcpro2, gcpro3;
5318 struct kboard *kb;
5319 int face_change_count_before = face_change_count;
5320 Lisp_Object buffer;
5321 struct buffer *old_buffer;
5322
5323 /* Use this general default value to start with until we know if
5324 this frame has a specified name. */
5325 Vx_resource_name = Vinvocation_name;
5326
5327 kb = dpyinfo->terminal->kboard;
5328
5329 /* The calls to x_get_arg remove elements from PARMS, so copy it to
5330 avoid destructive changes behind our caller's back. */
5331 parms = Fcopy_alist (parms);
5332
5333 /* Get the name of the frame to use for resource lookup. */
5334 name = x_get_arg (dpyinfo, parms, Qname, "name", "Name", RES_TYPE_STRING);
5335 if (!STRINGP (name)
5336 && !EQ (name, Qunbound)
5337 && !NILP (name))
5338 error ("Invalid frame name--not a string or nil");
5339 Vx_resource_name = name;
5340
5341 frame = Qnil;
5342 GCPRO3 (parms, name, frame);
5343 /* Make a frame without minibuffer nor mode-line. */
5344 f = make_frame (0);
5345 f->wants_modeline = 0;
5346 XSETFRAME (frame, f);
5347
5348 buffer = Fget_buffer_create (build_string (" *tip*"));
5349 /* Use set_window_buffer instead of Fset_window_buffer (see
5350 discussion of bug#11984, bug#12025, bug#12026). */
5351 set_window_buffer (FRAME_ROOT_WINDOW (f), buffer, 0, 0);
5352 old_buffer = current_buffer;
5353 set_buffer_internal_1 (XBUFFER (buffer));
5354 bset_truncate_lines (current_buffer, Qnil);
5355 specbind (Qinhibit_read_only, Qt);
5356 specbind (Qinhibit_modification_hooks, Qt);
5357 Ferase_buffer ();
5358 Finsert (1, &text);
5359 set_buffer_internal_1 (old_buffer);
5360
5361 record_unwind_protect (unwind_create_tip_frame, frame);
5362
5363 /* By setting the output method, we're essentially saying that
5364 the frame is live, as per FRAME_LIVE_P. If we get a signal
5365 from this point on, x_destroy_window might screw up reference
5366 counts etc. */
5367 f->terminal = dpyinfo->terminal;
5368 f->output_method = output_w32;
5369 f->output_data.w32 = xzalloc (sizeof (struct w32_output));
5370
5371 FRAME_FONTSET (f) = -1;
5372 fset_icon_name (f, Qnil);
5373
5374 #ifdef GLYPH_DEBUG
5375 image_cache_refcount =
5376 FRAME_IMAGE_CACHE (f) ? FRAME_IMAGE_CACHE (f)->refcount : 0;
5377 dpyinfo_refcount = dpyinfo->reference_count;
5378 #endif /* GLYPH_DEBUG */
5379 FRAME_KBOARD (f) = kb;
5380 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
5381 f->output_data.w32->explicit_parent = 0;
5382
5383 /* Set the name; the functions to which we pass f expect the name to
5384 be set. */
5385 if (EQ (name, Qunbound) || NILP (name))
5386 {
5387 fset_name (f, build_string (dpyinfo->w32_id_name));
5388 f->explicit_name = 0;
5389 }
5390 else
5391 {
5392 fset_name (f, name);
5393 f->explicit_name = 1;
5394 /* use the frame's title when getting resources for this frame. */
5395 specbind (Qx_resource_name, name);
5396 }
5397
5398 if (uniscribe_available)
5399 register_font_driver (&uniscribe_font_driver, f);
5400 register_font_driver (&w32font_driver, f);
5401
5402 x_default_parameter (f, parms, Qfont_backend, Qnil,
5403 "fontBackend", "FontBackend", RES_TYPE_STRING);
5404
5405 /* Extract the window parameters from the supplied values
5406 that are needed to determine window geometry. */
5407 x_default_font_parameter (f, parms);
5408
5409 x_default_parameter (f, parms, Qborder_width, make_number (2),
5410 "borderWidth", "BorderWidth", RES_TYPE_NUMBER);
5411 /* This defaults to 2 in order to match xterm. We recognize either
5412 internalBorderWidth or internalBorder (which is what xterm calls
5413 it). */
5414 if (NILP (Fassq (Qinternal_border_width, parms)))
5415 {
5416 Lisp_Object value;
5417
5418 value = x_get_arg (dpyinfo, parms, Qinternal_border_width,
5419 "internalBorder", "internalBorder", RES_TYPE_NUMBER);
5420 if (! EQ (value, Qunbound))
5421 parms = Fcons (Fcons (Qinternal_border_width, value),
5422 parms);
5423 }
5424 x_default_parameter (f, parms, Qinternal_border_width, make_number (1),
5425 "internalBorderWidth", "internalBorderWidth",
5426 RES_TYPE_NUMBER);
5427
5428 /* Also do the stuff which must be set before the window exists. */
5429 x_default_parameter (f, parms, Qforeground_color, build_string ("black"),
5430 "foreground", "Foreground", RES_TYPE_STRING);
5431 x_default_parameter (f, parms, Qbackground_color, build_string ("white"),
5432 "background", "Background", RES_TYPE_STRING);
5433 x_default_parameter (f, parms, Qmouse_color, build_string ("black"),
5434 "pointerColor", "Foreground", RES_TYPE_STRING);
5435 x_default_parameter (f, parms, Qcursor_color, build_string ("black"),
5436 "cursorColor", "Foreground", RES_TYPE_STRING);
5437 x_default_parameter (f, parms, Qborder_color, build_string ("black"),
5438 "borderColor", "BorderColor", RES_TYPE_STRING);
5439
5440 /* Init faces before x_default_parameter is called for scroll-bar
5441 parameters because that function calls x_set_scroll_bar_width,
5442 which calls change_frame_size, which calls Fset_window_buffer,
5443 which runs hooks, which call Fvertical_motion. At the end, we
5444 end up in init_iterator with a null face cache, which should not
5445 happen. */
5446 init_frame_faces (f);
5447
5448 f->output_data.w32->dwStyle = WS_BORDER | WS_POPUP | WS_DISABLED;
5449 f->output_data.w32->parent_desc = FRAME_W32_DISPLAY_INFO (f)->root_window;
5450
5451 window_prompting = x_figure_window_size (f, parms, 0);
5452
5453 /* No fringes on tip frame. */
5454 f->fringe_cols = 0;
5455 f->left_fringe_width = 0;
5456 f->right_fringe_width = 0;
5457
5458 block_input ();
5459 my_create_tip_window (f);
5460 unblock_input ();
5461
5462 x_make_gc (f);
5463
5464 x_default_parameter (f, parms, Qauto_raise, Qnil,
5465 "autoRaise", "AutoRaiseLower", RES_TYPE_BOOLEAN);
5466 x_default_parameter (f, parms, Qauto_lower, Qnil,
5467 "autoLower", "AutoRaiseLower", RES_TYPE_BOOLEAN);
5468 x_default_parameter (f, parms, Qcursor_type, Qbox,
5469 "cursorType", "CursorType", RES_TYPE_SYMBOL);
5470
5471 /* Dimensions, especially FRAME_LINES (f), must be done via change_frame_size.
5472 Change will not be effected unless different from the current
5473 FRAME_LINES (f). */
5474 width = FRAME_COLS (f);
5475 height = FRAME_LINES (f);
5476 FRAME_LINES (f) = 0;
5477 SET_FRAME_COLS (f, 0);
5478 change_frame_size (f, height, width, 1, 0, 0);
5479
5480 /* Add `tooltip' frame parameter's default value. */
5481 if (NILP (Fframe_parameter (frame, Qtooltip)))
5482 Fmodify_frame_parameters (frame, Fcons (Fcons (Qtooltip, Qt), Qnil));
5483
5484 /* Set up faces after all frame parameters are known. This call
5485 also merges in face attributes specified for new frames.
5486
5487 Frame parameters may be changed if .Xdefaults contains
5488 specifications for the default font. For example, if there is an
5489 `Emacs.default.attributeBackground: pink', the `background-color'
5490 attribute of the frame get's set, which let's the internal border
5491 of the tooltip frame appear in pink. Prevent this. */
5492 {
5493 Lisp_Object bg = Fframe_parameter (frame, Qbackground_color);
5494 Lisp_Object fg = Fframe_parameter (frame, Qforeground_color);
5495 Lisp_Object colors = Qnil;
5496
5497 /* Set tip_frame here, so that */
5498 tip_frame = frame;
5499 call2 (Qface_set_after_frame_default, frame, Qnil);
5500
5501 if (!EQ (bg, Fframe_parameter (frame, Qbackground_color)))
5502 colors = Fcons (Fcons (Qbackground_color, bg), colors);
5503 if (!EQ (fg, Fframe_parameter (frame, Qforeground_color)))
5504 colors = Fcons (Fcons (Qforeground_color, fg), colors);
5505
5506 if (!NILP (colors))
5507 Fmodify_frame_parameters (frame, colors);
5508 }
5509
5510 f->no_split = 1;
5511
5512 UNGCPRO;
5513
5514 /* Now that the frame is official, it counts as a reference to
5515 its display. */
5516 FRAME_W32_DISPLAY_INFO (f)->reference_count++;
5517 f->terminal->reference_count++;
5518
5519 /* It is now ok to make the frame official even if we get an error
5520 below. And the frame needs to be on Vframe_list or making it
5521 visible won't work. */
5522 Vframe_list = Fcons (frame, Vframe_list);
5523
5524 /* Setting attributes of faces of the tooltip frame from resources
5525 and similar will increment face_change_count, which leads to the
5526 clearing of all current matrices. Since this isn't necessary
5527 here, avoid it by resetting face_change_count to the value it
5528 had before we created the tip frame. */
5529 face_change_count = face_change_count_before;
5530
5531 /* Discard the unwind_protect. */
5532 return unbind_to (count, frame);
5533 }
5534
5535
5536 /* Compute where to display tip frame F. PARMS is the list of frame
5537 parameters for F. DX and DY are specified offsets from the current
5538 location of the mouse. WIDTH and HEIGHT are the width and height
5539 of the tooltip. Return coordinates relative to the root window of
5540 the display in *ROOT_X, and *ROOT_Y. */
5541
5542 static void
5543 compute_tip_xy (struct frame *f,
5544 Lisp_Object parms, Lisp_Object dx, Lisp_Object dy,
5545 int width, int height, int *root_x, int *root_y)
5546 {
5547 Lisp_Object left, top;
5548 int min_x, min_y, max_x, max_y;
5549
5550 /* User-specified position? */
5551 left = Fcdr (Fassq (Qleft, parms));
5552 top = Fcdr (Fassq (Qtop, parms));
5553
5554 /* Move the tooltip window where the mouse pointer is. Resize and
5555 show it. */
5556 if (!INTEGERP (left) || !INTEGERP (top))
5557 {
5558 POINT pt;
5559
5560 /* Default min and max values. */
5561 min_x = 0;
5562 min_y = 0;
5563 max_x = x_display_pixel_width (FRAME_W32_DISPLAY_INFO (f));
5564 max_y = x_display_pixel_height (FRAME_W32_DISPLAY_INFO (f));
5565
5566 block_input ();
5567 GetCursorPos (&pt);
5568 *root_x = pt.x;
5569 *root_y = pt.y;
5570 unblock_input ();
5571
5572 /* If multiple monitor support is available, constrain the tip onto
5573 the current monitor. This improves the above by allowing negative
5574 co-ordinates if monitor positions are such that they are valid, and
5575 snaps a tooltip onto a single monitor if we are close to the edge
5576 where it would otherwise flow onto the other monitor (or into
5577 nothingness if there is a gap in the overlap). */
5578 if (monitor_from_point_fn && get_monitor_info_fn)
5579 {
5580 struct MONITOR_INFO info;
5581 HMONITOR monitor
5582 = monitor_from_point_fn (pt, MONITOR_DEFAULT_TO_NEAREST);
5583 info.cbSize = sizeof (info);
5584
5585 if (get_monitor_info_fn (monitor, &info))
5586 {
5587 min_x = info.rcWork.left;
5588 min_y = info.rcWork.top;
5589 max_x = info.rcWork.right;
5590 max_y = info.rcWork.bottom;
5591 }
5592 }
5593 }
5594
5595 if (INTEGERP (top))
5596 *root_y = XINT (top);
5597 else if (*root_y + XINT (dy) <= min_y)
5598 *root_y = min_y; /* Can happen for negative dy */
5599 else if (*root_y + XINT (dy) + height <= max_y)
5600 /* It fits below the pointer */
5601 *root_y += XINT (dy);
5602 else if (height + XINT (dy) + min_y <= *root_y)
5603 /* It fits above the pointer. */
5604 *root_y -= height + XINT (dy);
5605 else
5606 /* Put it on the top. */
5607 *root_y = min_y;
5608
5609 if (INTEGERP (left))
5610 *root_x = XINT (left);
5611 else if (*root_x + XINT (dx) <= min_x)
5612 *root_x = 0; /* Can happen for negative dx */
5613 else if (*root_x + XINT (dx) + width <= max_x)
5614 /* It fits to the right of the pointer. */
5615 *root_x += XINT (dx);
5616 else if (width + XINT (dx) + min_x <= *root_x)
5617 /* It fits to the left of the pointer. */
5618 *root_x -= width + XINT (dx);
5619 else
5620 /* Put it left justified on the screen -- it ought to fit that way. */
5621 *root_x = min_x;
5622 }
5623
5624
5625 DEFUN ("x-show-tip", Fx_show_tip, Sx_show_tip, 1, 6, 0,
5626 doc: /* Show STRING in a \"tooltip\" window on frame FRAME.
5627 A tooltip window is a small window displaying a string.
5628
5629 This is an internal function; Lisp code should call `tooltip-show'.
5630
5631 FRAME nil or omitted means use the selected frame.
5632
5633 PARMS is an optional list of frame parameters which can be
5634 used to change the tooltip's appearance.
5635
5636 Automatically hide the tooltip after TIMEOUT seconds. TIMEOUT nil
5637 means use the default timeout of 5 seconds.
5638
5639 If the list of frame parameters PARMS contains a `left' parameter,
5640 the tooltip is displayed at that x-position. Otherwise it is
5641 displayed at the mouse position, with offset DX added (default is 5 if
5642 DX isn't specified). Likewise for the y-position; if a `top' frame
5643 parameter is specified, it determines the y-position of the tooltip
5644 window, otherwise it is displayed at the mouse position, with offset
5645 DY added (default is -10).
5646
5647 A tooltip's maximum size is specified by `x-max-tooltip-size'.
5648 Text larger than the specified size is clipped. */)
5649 (Lisp_Object string, Lisp_Object frame, Lisp_Object parms, Lisp_Object timeout, Lisp_Object dx, Lisp_Object dy)
5650 {
5651 struct frame *f;
5652 struct window *w;
5653 int root_x, root_y;
5654 struct buffer *old_buffer;
5655 struct text_pos pos;
5656 int i, width, height, seen_reversed_p;
5657 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
5658 int old_windows_or_buffers_changed = windows_or_buffers_changed;
5659 ptrdiff_t count = SPECPDL_INDEX ();
5660
5661 specbind (Qinhibit_redisplay, Qt);
5662
5663 GCPRO4 (string, parms, frame, timeout);
5664
5665 CHECK_STRING (string);
5666 f = decode_window_system_frame (frame);
5667 if (NILP (timeout))
5668 timeout = make_number (5);
5669 else
5670 CHECK_NATNUM (timeout);
5671
5672 if (NILP (dx))
5673 dx = make_number (5);
5674 else
5675 CHECK_NUMBER (dx);
5676
5677 if (NILP (dy))
5678 dy = make_number (-10);
5679 else
5680 CHECK_NUMBER (dy);
5681
5682 if (NILP (last_show_tip_args))
5683 last_show_tip_args = Fmake_vector (make_number (3), Qnil);
5684
5685 if (!NILP (tip_frame))
5686 {
5687 Lisp_Object last_string = AREF (last_show_tip_args, 0);
5688 Lisp_Object last_frame = AREF (last_show_tip_args, 1);
5689 Lisp_Object last_parms = AREF (last_show_tip_args, 2);
5690
5691 if (EQ (frame, last_frame)
5692 && !NILP (Fequal (last_string, string))
5693 && !NILP (Fequal (last_parms, parms)))
5694 {
5695 struct frame *f = XFRAME (tip_frame);
5696
5697 /* Only DX and DY have changed. */
5698 if (!NILP (tip_timer))
5699 {
5700 Lisp_Object timer = tip_timer;
5701 tip_timer = Qnil;
5702 call1 (Qcancel_timer, timer);
5703 }
5704
5705 block_input ();
5706 compute_tip_xy (f, parms, dx, dy, FRAME_PIXEL_WIDTH (f),
5707 FRAME_PIXEL_HEIGHT (f), &root_x, &root_y);
5708
5709 /* Put tooltip in topmost group and in position. */
5710 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOPMOST,
5711 root_x, root_y, 0, 0,
5712 SWP_NOSIZE | SWP_NOACTIVATE);
5713
5714 /* Ensure tooltip is on top of other topmost windows (eg menus). */
5715 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOP,
5716 0, 0, 0, 0,
5717 SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
5718
5719 unblock_input ();
5720 goto start_timer;
5721 }
5722 }
5723
5724 /* Hide a previous tip, if any. */
5725 Fx_hide_tip ();
5726
5727 ASET (last_show_tip_args, 0, string);
5728 ASET (last_show_tip_args, 1, frame);
5729 ASET (last_show_tip_args, 2, parms);
5730
5731 /* Add default values to frame parameters. */
5732 if (NILP (Fassq (Qname, parms)))
5733 parms = Fcons (Fcons (Qname, build_string ("tooltip")), parms);
5734 if (NILP (Fassq (Qinternal_border_width, parms)))
5735 parms = Fcons (Fcons (Qinternal_border_width, make_number (3)), parms);
5736 if (NILP (Fassq (Qborder_width, parms)))
5737 parms = Fcons (Fcons (Qborder_width, make_number (1)), parms);
5738 if (NILP (Fassq (Qborder_color, parms)))
5739 parms = Fcons (Fcons (Qborder_color, build_string ("lightyellow")), parms);
5740 if (NILP (Fassq (Qbackground_color, parms)))
5741 parms = Fcons (Fcons (Qbackground_color, build_string ("lightyellow")),
5742 parms);
5743
5744 /* Block input until the tip has been fully drawn, to avoid crashes
5745 when drawing tips in menus. */
5746 block_input ();
5747
5748 /* Create a frame for the tooltip, and record it in the global
5749 variable tip_frame. */
5750 frame = x_create_tip_frame (FRAME_W32_DISPLAY_INFO (f), parms, string);
5751 f = XFRAME (frame);
5752
5753 /* Set up the frame's root window. */
5754 w = XWINDOW (FRAME_ROOT_WINDOW (f));
5755 w->left_col = 0;
5756 w->top_line = 0;
5757
5758 if (CONSP (Vx_max_tooltip_size)
5759 && INTEGERP (XCAR (Vx_max_tooltip_size))
5760 && XINT (XCAR (Vx_max_tooltip_size)) > 0
5761 && INTEGERP (XCDR (Vx_max_tooltip_size))
5762 && XINT (XCDR (Vx_max_tooltip_size)) > 0)
5763 {
5764 w->total_cols = XFASTINT (XCAR (Vx_max_tooltip_size));
5765 w->total_lines = XFASTINT (XCDR (Vx_max_tooltip_size));
5766 }
5767 else
5768 {
5769 w->total_cols = 80;
5770 w->total_lines = 40;
5771 }
5772
5773 FRAME_TOTAL_COLS (f) = WINDOW_TOTAL_COLS (w);
5774 adjust_glyphs (f);
5775 w->pseudo_window_p = 1;
5776
5777 /* Display the tooltip text in a temporary buffer. */
5778 old_buffer = current_buffer;
5779 set_buffer_internal_1 (XBUFFER (XWINDOW (FRAME_ROOT_WINDOW (f))->contents));
5780 bset_truncate_lines (current_buffer, Qnil);
5781 clear_glyph_matrix (w->desired_matrix);
5782 clear_glyph_matrix (w->current_matrix);
5783 SET_TEXT_POS (pos, BEGV, BEGV_BYTE);
5784 try_window (FRAME_ROOT_WINDOW (f), pos, TRY_WINDOW_IGNORE_FONTS_CHANGE);
5785
5786 /* Compute width and height of the tooltip. */
5787 width = height = seen_reversed_p = 0;
5788 for (i = 0; i < w->desired_matrix->nrows; ++i)
5789 {
5790 struct glyph_row *row = &w->desired_matrix->rows[i];
5791 struct glyph *last;
5792 int row_width;
5793
5794 /* Stop at the first empty row at the end. */
5795 if (!row->enabled_p || !MATRIX_ROW_DISPLAYS_TEXT_P (row))
5796 break;
5797
5798 /* Let the row go over the full width of the frame. */
5799 row->full_width_p = 1;
5800
5801 row_width = row->pixel_width;
5802 if (row->used[TEXT_AREA])
5803 {
5804 if (!row->reversed_p)
5805 {
5806 /* There's a glyph at the end of rows that is used to
5807 place the cursor there. Don't include the width of
5808 this glyph. */
5809 last = &row->glyphs[TEXT_AREA][row->used[TEXT_AREA] - 1];
5810 if (INTEGERP (last->object))
5811 row_width -= last->pixel_width;
5812 }
5813 else
5814 {
5815 /* There could be a stretch glyph at the beginning of R2L
5816 rows that is produced by extend_face_to_end_of_line.
5817 Don't count that glyph. */
5818 struct glyph *g = row->glyphs[TEXT_AREA];
5819
5820 if (g->type == STRETCH_GLYPH && INTEGERP (g->object))
5821 {
5822 row_width -= g->pixel_width;
5823 seen_reversed_p = 1;
5824 }
5825 }
5826 }
5827
5828 height += row->height;
5829 width = max (width, row_width);
5830 }
5831
5832 /* If we've seen partial-length R2L rows, we need to re-adjust the
5833 tool-tip frame width and redisplay it again, to avoid over-wide
5834 tips due to the stretch glyph that extends R2L lines to full
5835 width of the frame. */
5836 if (seen_reversed_p)
5837 {
5838 /* w->total_cols and FRAME_TOTAL_COLS want the width in columns,
5839 not in pixels. */
5840 width /= WINDOW_FRAME_COLUMN_WIDTH (w);
5841 w->total_cols = width;
5842 FRAME_TOTAL_COLS (f) = width;
5843 adjust_glyphs (f);
5844 w->pseudo_window_p = 1;
5845 clear_glyph_matrix (w->desired_matrix);
5846 clear_glyph_matrix (w->current_matrix);
5847 try_window (FRAME_ROOT_WINDOW (f), pos, TRY_WINDOW_IGNORE_FONTS_CHANGE);
5848 width = height = 0;
5849 /* Recompute width and height of the tooltip. */
5850 for (i = 0; i < w->desired_matrix->nrows; ++i)
5851 {
5852 struct glyph_row *row = &w->desired_matrix->rows[i];
5853 struct glyph *last;
5854 int row_width;
5855
5856 if (!row->enabled_p || !MATRIX_ROW_DISPLAYS_TEXT_P (row))
5857 break;
5858 row->full_width_p = 1;
5859 row_width = row->pixel_width;
5860 if (row->used[TEXT_AREA] && !row->reversed_p)
5861 {
5862 last = &row->glyphs[TEXT_AREA][row->used[TEXT_AREA] - 1];
5863 if (INTEGERP (last->object))
5864 row_width -= last->pixel_width;
5865 }
5866
5867 height += row->height;
5868 width = max (width, row_width);
5869 }
5870 }
5871
5872 /* Round up the height to an integral multiple of FRAME_LINE_HEIGHT. */
5873 if (height % FRAME_LINE_HEIGHT (f) != 0)
5874 height += FRAME_LINE_HEIGHT (f) - height % FRAME_LINE_HEIGHT (f);
5875 /* Add the frame's internal border to the width and height the w32
5876 window should have. */
5877 height += 2 * FRAME_INTERNAL_BORDER_WIDTH (f);
5878 width += 2 * FRAME_INTERNAL_BORDER_WIDTH (f);
5879
5880 /* Move the tooltip window where the mouse pointer is. Resize and
5881 show it. */
5882 compute_tip_xy (f, parms, dx, dy, width, height, &root_x, &root_y);
5883
5884 {
5885 /* Adjust Window size to take border into account. */
5886 RECT rect;
5887 rect.left = rect.top = 0;
5888 rect.right = width;
5889 rect.bottom = height;
5890 AdjustWindowRect (&rect, f->output_data.w32->dwStyle,
5891 FRAME_EXTERNAL_MENU_BAR (f));
5892
5893 /* Position and size tooltip, and put it in the topmost group.
5894 The add-on of FRAME_COLUMN_WIDTH to the 5th argument is a
5895 peculiarity of w32 display: without it, some fonts cause the
5896 last character of the tip to be truncated or wrapped around to
5897 the next line. */
5898 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOPMOST,
5899 root_x, root_y,
5900 rect.right - rect.left + FRAME_COLUMN_WIDTH (f),
5901 rect.bottom - rect.top, SWP_NOACTIVATE);
5902
5903 /* Ensure tooltip is on top of other topmost windows (eg menus). */
5904 SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOP,
5905 0, 0, 0, 0,
5906 SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
5907
5908 /* Let redisplay know that we have made the frame visible already. */
5909 SET_FRAME_VISIBLE (f, 1);
5910
5911 ShowWindow (FRAME_W32_WINDOW (f), SW_SHOWNOACTIVATE);
5912 }
5913
5914 /* Draw into the window. */
5915 w->must_be_updated_p = 1;
5916 update_single_window (w, 1);
5917
5918 unblock_input ();
5919
5920 /* Restore original current buffer. */
5921 set_buffer_internal_1 (old_buffer);
5922 windows_or_buffers_changed = old_windows_or_buffers_changed;
5923
5924 start_timer:
5925 /* Let the tip disappear after timeout seconds. */
5926 tip_timer = call3 (intern ("run-at-time"), timeout, Qnil,
5927 intern ("x-hide-tip"));
5928
5929 UNGCPRO;
5930 return unbind_to (count, Qnil);
5931 }
5932
5933
5934 DEFUN ("x-hide-tip", Fx_hide_tip, Sx_hide_tip, 0, 0, 0,
5935 doc: /* Hide the current tooltip window, if there is any.
5936 Value is t if tooltip was open, nil otherwise. */)
5937 (void)
5938 {
5939 ptrdiff_t count;
5940 Lisp_Object deleted, frame, timer;
5941 struct gcpro gcpro1, gcpro2;
5942
5943 /* Return quickly if nothing to do. */
5944 if (NILP (tip_timer) && NILP (tip_frame))
5945 return Qnil;
5946
5947 frame = tip_frame;
5948 timer = tip_timer;
5949 GCPRO2 (frame, timer);
5950 tip_frame = tip_timer = deleted = Qnil;
5951
5952 count = SPECPDL_INDEX ();
5953 specbind (Qinhibit_redisplay, Qt);
5954 specbind (Qinhibit_quit, Qt);
5955
5956 if (!NILP (timer))
5957 call1 (Qcancel_timer, timer);
5958
5959 if (FRAMEP (frame))
5960 {
5961 delete_frame (frame, Qnil);
5962 deleted = Qt;
5963 }
5964
5965 UNGCPRO;
5966 return unbind_to (count, deleted);
5967 }
5968 \f
5969 /***********************************************************************
5970 File selection dialog
5971 ***********************************************************************/
5972
5973 #define FILE_NAME_TEXT_FIELD edt1
5974 #define FILE_NAME_COMBO_BOX cmb13
5975 #define FILE_NAME_LIST lst1
5976
5977 /* Callback for altering the behavior of the Open File dialog.
5978 Makes the Filename text field contain "Current Directory" and be
5979 read-only when "Directories" is selected in the filter. This
5980 allows us to work around the fact that the standard Open File
5981 dialog does not support directories. */
5982 static UINT_PTR CALLBACK
5983 file_dialog_callback (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
5984 {
5985 if (msg == WM_NOTIFY)
5986 {
5987 #ifdef NTGUI_UNICODE
5988 OFNOTIFYW * notify = (OFNOTIFYW *)lParam;
5989 #else /* !NTGUI_UNICODE */
5990 OFNOTIFYA * notify = (OFNOTIFYA *)lParam;
5991 #endif /* NTGUI_UNICODE */
5992 /* Detect when the Filter dropdown is changed. */
5993 if (notify->hdr.code == CDN_TYPECHANGE
5994 || notify->hdr.code == CDN_INITDONE)
5995 {
5996 HWND dialog = GetParent (hwnd);
5997 HWND edit_control = GetDlgItem (dialog, FILE_NAME_TEXT_FIELD);
5998 HWND list = GetDlgItem (dialog, FILE_NAME_LIST);
5999
6000 /* At least on Windows 7, the above attempt to get the window handle
6001 to the File Name Text Field fails. The following code does the
6002 job though. Note that this code is based on my examination of the
6003 window hierarchy using Microsoft Spy++. bk */
6004 if (edit_control == NULL)
6005 {
6006 HWND tmp = GetDlgItem (dialog, FILE_NAME_COMBO_BOX);
6007 if (tmp)
6008 {
6009 tmp = GetWindow (tmp, GW_CHILD);
6010 if (tmp)
6011 edit_control = GetWindow (tmp, GW_CHILD);
6012 }
6013 }
6014
6015 /* Directories is in index 2. */
6016 if (notify->lpOFN->nFilterIndex == 2)
6017 {
6018 CommDlg_OpenSave_SetControlText (dialog, FILE_NAME_TEXT_FIELD,
6019 GUISTR ("Current Directory"));
6020 EnableWindow (edit_control, FALSE);
6021 /* Note that at least on Windows 7, the above call to EnableWindow
6022 disables the window that would ordinarily have focus. If we
6023 do not set focus to some other window here, focus will land in
6024 no man's land and the user will be unable to tab through the
6025 dialog box (pressing tab will only result in a beep).
6026 Avoid that problem by setting focus to the list here. */
6027 if (notify->hdr.code == CDN_INITDONE)
6028 SetFocus (list);
6029 }
6030 else
6031 {
6032 /* Don't override default filename on init done. */
6033 if (notify->hdr.code == CDN_TYPECHANGE)
6034 CommDlg_OpenSave_SetControlText (dialog,
6035 FILE_NAME_TEXT_FIELD,
6036 GUISTR (""));
6037 EnableWindow (edit_control, TRUE);
6038 }
6039 }
6040 }
6041 return 0;
6042 }
6043
6044 DEFUN ("x-file-dialog", Fx_file_dialog, Sx_file_dialog, 2, 5, 0,
6045 doc: /* Read file name, prompting with PROMPT in directory DIR.
6046 Use a file selection dialog. Select DEFAULT-FILENAME in the dialog's file
6047 selection box, if specified. If MUSTMATCH is non-nil, the returned file
6048 or directory must exist.
6049
6050 This function is only defined on NS, MS Windows, and X Windows with the
6051 Motif or Gtk toolkits. With the Motif toolkit, ONLY-DIR-P is ignored.
6052 Otherwise, if ONLY-DIR-P is non-nil, the user can only select directories. */)
6053 (Lisp_Object prompt, Lisp_Object dir, Lisp_Object default_filename, Lisp_Object mustmatch, Lisp_Object only_dir_p)
6054 {
6055 /* Filter index: 1: All Files, 2: Directories only */
6056 static const guichar_t filter[] =
6057 GUISTR ("All Files (*.*)\0*.*\0Directories\0*|*\0");
6058
6059 Lisp_Object filename = default_filename;
6060 struct frame *f = SELECTED_FRAME ();
6061 BOOL file_opened = FALSE;
6062 Lisp_Object orig_dir = dir;
6063 Lisp_Object orig_prompt = prompt;
6064
6065 /* If we compile with _WIN32_WINNT set to 0x0400 (for NT4
6066 compatibility) we end up with the old file dialogs. Define a big
6067 enough struct for the new dialog to trick GetOpenFileName into
6068 giving us the new dialogs on newer versions of Windows. */
6069 struct {
6070 #ifdef NTGUI_UNICODE
6071 OPENFILENAMEW details;
6072 #else /* !NTGUI_UNICODE */
6073 OPENFILENAMEA details;
6074 #endif /* NTGUI_UNICODE */
6075
6076 #if _WIN32_WINNT < 0x500 /* < win2k */
6077 PVOID pvReserved;
6078 DWORD dwReserved;
6079 DWORD FlagsEx;
6080 #endif /* < win2k */
6081 } new_file_details;
6082
6083 #ifdef NTGUI_UNICODE
6084 wchar_t filename_buf[32*1024 + 1]; // NT kernel maximum
6085 OPENFILENAMEW * file_details = &new_file_details.details;
6086 #else /* not NTGUI_UNICODE */
6087 char filename_buf[MAX_PATH + 1];
6088 OPENFILENAMEA * file_details = &new_file_details.details;
6089 #endif /* NTGUI_UNICODE */
6090
6091 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6;
6092 GCPRO6 (prompt, dir, default_filename, mustmatch, only_dir_p, filename);
6093
6094 {
6095 struct gcpro gcpro1, gcpro2;
6096 GCPRO2 (orig_dir, orig_prompt); /* There is no GCPRON, N>6. */
6097
6098 /* Note: under NTGUI_UNICODE, we do _NOT_ use ENCODE_FILE: the
6099 system file encoding expected by the platform APIs (e.g. Cygwin's
6100 POSIX implementation) may not be the same as the encoding expected
6101 by the Windows "ANSI" APIs! */
6102
6103 CHECK_STRING (prompt);
6104 CHECK_STRING (dir);
6105
6106 dir = Fexpand_file_name (dir, Qnil);
6107
6108 if (STRINGP (filename))
6109 filename = Ffile_name_nondirectory (filename);
6110 else
6111 filename = empty_unibyte_string;
6112
6113 #ifdef CYGWIN
6114 dir = Fcygwin_convert_file_name_to_windows (dir, Qt);
6115 if (SCHARS (filename) > 0)
6116 filename = Fcygwin_convert_file_name_to_windows (filename, Qnil);
6117 #endif
6118
6119 CHECK_STRING (dir);
6120 CHECK_STRING (filename);
6121
6122 /* The code in file_dialog_callback that attempts to set the text
6123 of the file name edit window when handling the CDN_INITDONE
6124 WM_NOTIFY message does not work. Setting filename to "Current
6125 Directory" in the only_dir_p case here does work however. */
6126 if (SCHARS (filename) == 0 && ! NILP (only_dir_p))
6127 filename = build_string ("Current Directory");
6128
6129 /* Convert the values we've computed so far to system form. */
6130 #ifdef NTGUI_UNICODE
6131 to_unicode (prompt, &prompt);
6132 to_unicode (dir, &dir);
6133 to_unicode (filename, &filename);
6134 #else /* !NTGUI_UNICODE */
6135 prompt = ENCODE_FILE (prompt);
6136 dir = ENCODE_FILE (dir);
6137 filename = ENCODE_FILE (filename);
6138
6139 /* We modify these in-place, so make copies for safety. */
6140 dir = Fcopy_sequence (dir);
6141 unixtodos_filename (SDATA (dir));
6142 filename = Fcopy_sequence (filename);
6143 unixtodos_filename (SDATA (filename));
6144 #endif /* NTGUI_UNICODE */
6145
6146 /* Fill in the structure for the call to GetOpenFileName below.
6147 For NTGUI_UNICODE builds (which run only on NT), we just use
6148 the actual size of the structure. For non-NTGUI_UNICODE
6149 builds, we tell the OS we're using an old version of the
6150 structure if the OS isn't new enough to support the newer
6151 version. */
6152 memset (&new_file_details, 0, sizeof (new_file_details));
6153
6154 if (w32_major_version > 4 && w32_major_version < 95)
6155 file_details->lStructSize = sizeof (new_file_details);
6156 else
6157 file_details->lStructSize = sizeof (*file_details);
6158
6159 /* Set up the inout parameter for the selected file name. */
6160 if (SBYTES (filename) + 1 > sizeof (filename_buf))
6161 report_file_error ("filename too long", default_filename);
6162
6163 memcpy (filename_buf, SDATA (filename), SBYTES (filename) + 1);
6164 file_details->lpstrFile = filename_buf;
6165 file_details->nMaxFile = sizeof (filename_buf) / sizeof (*filename_buf);
6166
6167 file_details->hwndOwner = FRAME_W32_WINDOW (f);
6168 /* Undocumented Bug in Common File Dialog:
6169 If a filter is not specified, shell links are not resolved. */
6170 file_details->lpstrFilter = filter;
6171 file_details->lpstrInitialDir = (guichar_t*) SDATA (dir);
6172 file_details->lpstrTitle = (guichar_t*) SDATA (prompt);
6173 file_details->nFilterIndex = NILP (only_dir_p) ? 1 : 2;
6174 file_details->Flags = (OFN_HIDEREADONLY | OFN_NOCHANGEDIR
6175 | OFN_EXPLORER | OFN_ENABLEHOOK);
6176
6177 if (!NILP (mustmatch))
6178 {
6179 /* Require that the path to the parent directory exists. */
6180 file_details->Flags |= OFN_PATHMUSTEXIST;
6181 /* If we are looking for a file, require that it exists. */
6182 if (NILP (only_dir_p))
6183 file_details->Flags |= OFN_FILEMUSTEXIST;
6184 }
6185
6186 {
6187 int count = SPECPDL_INDEX ();
6188 /* Prevent redisplay. */
6189 specbind (Qinhibit_redisplay, Qt);
6190 block_input ();
6191 file_details->lpfnHook = file_dialog_callback;
6192
6193 file_opened = GUI_FN (GetOpenFileName) (file_details);
6194 unblock_input ();
6195 unbind_to (count, Qnil);
6196 }
6197
6198 if (file_opened)
6199 {
6200 /* Get an Emacs string from the value Windows gave us. */
6201 #ifdef NTGUI_UNICODE
6202 filename = from_unicode_buffer (filename_buf);
6203 #else /* !NTGUI_UNICODE */
6204 dostounix_filename (filename_buf, 0);
6205 filename = DECODE_FILE (build_string (filename_buf));
6206 #endif /* NTGUI_UNICODE */
6207
6208 #ifdef CYGWIN
6209 filename = Fcygwin_convert_file_name_from_windows (filename, Qt);
6210 #endif /* CYGWIN */
6211
6212 /* Strip the dummy filename off the end of the string if we
6213 added it to select a directory. */
6214 if (file_details->nFilterIndex == 2)
6215 {
6216 filename = Ffile_name_directory (filename);
6217 }
6218 }
6219 /* User canceled the dialog without making a selection. */
6220 else if (!CommDlgExtendedError ())
6221 filename = Qnil;
6222 /* An error occurred, fallback on reading from the mini-buffer. */
6223 else
6224 filename = Fcompleting_read (
6225 orig_prompt,
6226 intern ("read-file-name-internal"),
6227 orig_dir,
6228 mustmatch,
6229 orig_dir,
6230 Qfile_name_history,
6231 default_filename,
6232 Qnil);
6233
6234 UNGCPRO;
6235 }
6236
6237 /* Make "Cancel" equivalent to C-g. */
6238 if (NILP (filename))
6239 Fsignal (Qquit, Qnil);
6240
6241 RETURN_UNGCPRO (filename);
6242 }
6243
6244 \f
6245 #ifdef WINDOWSNT
6246 /* Moving files to the system recycle bin.
6247 Used by `move-file-to-trash' instead of the default moving to ~/.Trash */
6248 DEFUN ("system-move-file-to-trash", Fsystem_move_file_to_trash,
6249 Ssystem_move_file_to_trash, 1, 1, 0,
6250 doc: /* Move file or directory named FILENAME to the recycle bin. */)
6251 (Lisp_Object filename)
6252 {
6253 Lisp_Object handler;
6254 Lisp_Object encoded_file;
6255 Lisp_Object operation;
6256
6257 operation = Qdelete_file;
6258 if (!NILP (Ffile_directory_p (filename))
6259 && NILP (Ffile_symlink_p (filename)))
6260 {
6261 operation = intern ("delete-directory");
6262 filename = Fdirectory_file_name (filename);
6263 }
6264 filename = Fexpand_file_name (filename, Qnil);
6265
6266 handler = Ffind_file_name_handler (filename, operation);
6267 if (!NILP (handler))
6268 return call2 (handler, operation, filename);
6269
6270 encoded_file = ENCODE_FILE (filename);
6271
6272 {
6273 const char * path;
6274 SHFILEOPSTRUCT file_op;
6275 char tmp_path[MAX_PATH + 1];
6276
6277 path = map_w32_filename (SDATA (encoded_file), NULL);
6278
6279 /* On Windows, write permission is required to delete/move files. */
6280 _chmod (path, 0666);
6281
6282 memset (tmp_path, 0, sizeof (tmp_path));
6283 strcpy (tmp_path, path);
6284
6285 memset (&file_op, 0, sizeof (file_op));
6286 file_op.hwnd = HWND_DESKTOP;
6287 file_op.wFunc = FO_DELETE;
6288 file_op.pFrom = tmp_path;
6289 file_op.fFlags = FOF_SILENT | FOF_NOCONFIRMATION | FOF_ALLOWUNDO
6290 | FOF_NOERRORUI | FOF_NO_CONNECTED_ELEMENTS;
6291 file_op.fAnyOperationsAborted = FALSE;
6292
6293 if (SHFileOperation (&file_op) != 0)
6294 report_file_error ("Removing old name", list1 (filename));
6295 }
6296 return Qnil;
6297 }
6298
6299 #endif /* WINDOWSNT */
6300
6301 \f
6302 /***********************************************************************
6303 w32 specialized functions
6304 ***********************************************************************/
6305
6306 DEFUN ("w32-send-sys-command", Fw32_send_sys_command,
6307 Sw32_send_sys_command, 1, 2, 0,
6308 doc: /* Send frame a Windows WM_SYSCOMMAND message of type COMMAND.
6309 Some useful values for COMMAND are #xf030 to maximize frame (#xf020
6310 to minimize), #xf120 to restore frame to original size, and #xf100
6311 to activate the menubar for keyboard access. #xf140 activates the
6312 screen saver if defined.
6313
6314 If optional parameter FRAME is not specified, use selected frame. */)
6315 (Lisp_Object command, Lisp_Object frame)
6316 {
6317 FRAME_PTR f = decode_window_system_frame (frame);
6318
6319 CHECK_NUMBER (command);
6320
6321 PostMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, XINT (command), 0);
6322
6323 return Qnil;
6324 }
6325
6326 DEFUN ("w32-shell-execute", Fw32_shell_execute, Sw32_shell_execute, 2, 4, 0,
6327 doc: /* Get Windows to perform OPERATION on DOCUMENT.
6328 This is a wrapper around the ShellExecute system function, which
6329 invokes the application registered to handle OPERATION for DOCUMENT.
6330
6331 OPERATION is either nil or a string that names a supported operation.
6332 What operations can be used depends on the particular DOCUMENT and its
6333 handler application, but typically it is one of the following common
6334 operations:
6335
6336 \"open\" - open DOCUMENT, which could be a file, a directory, or an
6337 executable program. If it is an application, that
6338 application is launched in the current buffer's default
6339 directory. Otherwise, the application associated with
6340 DOCUMENT is launched in the buffer's default directory.
6341 \"print\" - print DOCUMENT, which must be a file
6342 \"explore\" - start the Windows Explorer on DOCUMENT
6343 \"edit\" - launch an editor and open DOCUMENT for editing; which
6344 editor is launched depends on the association for the
6345 specified DOCUMENT
6346 \"find\" - initiate search starting from DOCUMENT which must specify
6347 a directory
6348 nil - invoke the default OPERATION, or \"open\" if default is
6349 not defined or unavailable
6350
6351 DOCUMENT is typically the name of a document file or a URL, but can
6352 also be a program executable to run, or a directory to open in the
6353 Windows Explorer.
6354
6355 If DOCUMENT is a program executable, the optional third arg PARAMETERS
6356 can be a string containing command line parameters that will be passed
6357 to the program; otherwise, PARAMETERS should be nil or unspecified.
6358
6359 Optional fourth argument SHOW-FLAG can be used to control how the
6360 application will be displayed when it is invoked. If SHOW-FLAG is nil
6361 or unspecified, the application is displayed normally, otherwise it is
6362 an integer representing a ShowWindow flag:
6363
6364 0 - start hidden
6365 1 - start normally
6366 3 - start maximized
6367 6 - start minimized */)
6368 (Lisp_Object operation, Lisp_Object document, Lisp_Object parameters, Lisp_Object show_flag)
6369 {
6370 Lisp_Object current_dir;
6371 char *errstr;
6372
6373 CHECK_STRING (document);
6374
6375 /* Encode filename, current directory and parameters. */
6376 current_dir = BVAR (current_buffer, directory);
6377
6378 #ifdef CYGWIN
6379 current_dir = Fcygwin_convert_file_name_to_windows (current_dir, Qt);
6380 if (STRINGP (document))
6381 document = Fcygwin_convert_file_name_to_windows (document, Qt);
6382 #endif /* CYGWIN */
6383
6384 current_dir = GUI_ENCODE_FILE (current_dir);
6385 if (STRINGP (document))
6386 document = GUI_ENCODE_FILE (document);
6387 if (STRINGP (parameters))
6388 parameters = GUI_ENCODE_SYSTEM (parameters);
6389
6390 if ((int) GUI_FN (ShellExecute) (NULL,
6391 (STRINGP (operation) ?
6392 GUI_SDATA (operation) : NULL),
6393 GUI_SDATA (document),
6394 (STRINGP (parameters) ?
6395 GUI_SDATA (parameters) : NULL),
6396 GUI_SDATA (current_dir),
6397 (INTEGERP (show_flag) ?
6398 XINT (show_flag) : SW_SHOWDEFAULT))
6399 > 32)
6400 return Qt;
6401 errstr = w32_strerror (0);
6402 /* The error string might be encoded in the locale's encoding. */
6403 if (!NILP (Vlocale_coding_system))
6404 {
6405 Lisp_Object decoded =
6406 code_convert_string_norecord (build_unibyte_string (errstr),
6407 Vlocale_coding_system, 0);
6408 errstr = SSDATA (decoded);
6409 }
6410 error ("ShellExecute failed: %s", errstr);
6411 }
6412
6413 /* Lookup virtual keycode from string representing the name of a
6414 non-ascii keystroke into the corresponding virtual key, using
6415 lispy_function_keys. */
6416 static int
6417 lookup_vk_code (char *key)
6418 {
6419 int i;
6420
6421 for (i = 0; i < 256; i++)
6422 if (lispy_function_keys[i]
6423 && strcmp (lispy_function_keys[i], key) == 0)
6424 return i;
6425
6426 return -1;
6427 }
6428
6429 /* Convert a one-element vector style key sequence to a hot key
6430 definition. */
6431 static Lisp_Object
6432 w32_parse_hot_key (Lisp_Object key)
6433 {
6434 /* Copied from Fdefine_key and store_in_keymap. */
6435 register Lisp_Object c;
6436 int vk_code;
6437 int lisp_modifiers;
6438 int w32_modifiers;
6439 struct gcpro gcpro1;
6440
6441 CHECK_VECTOR (key);
6442
6443 if (ASIZE (key) != 1)
6444 return Qnil;
6445
6446 GCPRO1 (key);
6447
6448 c = AREF (key, 0);
6449
6450 if (CONSP (c) && lucid_event_type_list_p (c))
6451 c = Fevent_convert_list (c);
6452
6453 UNGCPRO;
6454
6455 if (! INTEGERP (c) && ! SYMBOLP (c))
6456 error ("Key definition is invalid");
6457
6458 /* Work out the base key and the modifiers. */
6459 if (SYMBOLP (c))
6460 {
6461 c = parse_modifiers (c);
6462 lisp_modifiers = XINT (Fcar (Fcdr (c)));
6463 c = Fcar (c);
6464 if (!SYMBOLP (c))
6465 emacs_abort ();
6466 vk_code = lookup_vk_code (SDATA (SYMBOL_NAME (c)));
6467 }
6468 else if (INTEGERP (c))
6469 {
6470 lisp_modifiers = XINT (c) & ~CHARACTERBITS;
6471 /* Many ascii characters are their own virtual key code. */
6472 vk_code = XINT (c) & CHARACTERBITS;
6473 }
6474
6475 if (vk_code < 0 || vk_code > 255)
6476 return Qnil;
6477
6478 if ((lisp_modifiers & meta_modifier) != 0
6479 && !NILP (Vw32_alt_is_meta))
6480 lisp_modifiers |= alt_modifier;
6481
6482 /* Supply defs missing from mingw32. */
6483 #ifndef MOD_ALT
6484 #define MOD_ALT 0x0001
6485 #define MOD_CONTROL 0x0002
6486 #define MOD_SHIFT 0x0004
6487 #define MOD_WIN 0x0008
6488 #endif
6489
6490 /* Convert lisp modifiers to Windows hot-key form. */
6491 w32_modifiers = (lisp_modifiers & hyper_modifier) ? MOD_WIN : 0;
6492 w32_modifiers |= (lisp_modifiers & alt_modifier) ? MOD_ALT : 0;
6493 w32_modifiers |= (lisp_modifiers & ctrl_modifier) ? MOD_CONTROL : 0;
6494 w32_modifiers |= (lisp_modifiers & shift_modifier) ? MOD_SHIFT : 0;
6495
6496 return HOTKEY (vk_code, w32_modifiers);
6497 }
6498
6499 DEFUN ("w32-register-hot-key", Fw32_register_hot_key,
6500 Sw32_register_hot_key, 1, 1, 0,
6501 doc: /* Register KEY as a hot-key combination.
6502 Certain key combinations like Alt-Tab are reserved for system use on
6503 Windows, and therefore are normally intercepted by the system. However,
6504 most of these key combinations can be received by registering them as
6505 hot-keys, overriding their special meaning.
6506
6507 KEY must be a one element key definition in vector form that would be
6508 acceptable to `define-key' (e.g. [A-tab] for Alt-Tab). The meta
6509 modifier is interpreted as Alt if `w32-alt-is-meta' is t, and hyper
6510 is always interpreted as the Windows modifier keys.
6511
6512 The return value is the hotkey-id if registered, otherwise nil. */)
6513 (Lisp_Object key)
6514 {
6515 key = w32_parse_hot_key (key);
6516
6517 if (!NILP (key) && NILP (Fmemq (key, w32_grabbed_keys)))
6518 {
6519 /* Reuse an empty slot if possible. */
6520 Lisp_Object item = Fmemq (Qnil, w32_grabbed_keys);
6521
6522 /* Safe to add new key to list, even if we have focus. */
6523 if (NILP (item))
6524 w32_grabbed_keys = Fcons (key, w32_grabbed_keys);
6525 else
6526 XSETCAR (item, key);
6527
6528 /* Notify input thread about new hot-key definition, so that it
6529 takes effect without needing to switch focus. */
6530 PostThreadMessage (dwWindowsThreadId, WM_EMACS_REGISTER_HOT_KEY,
6531 (WPARAM) XLI (key), 0);
6532 }
6533
6534 return key;
6535 }
6536
6537 DEFUN ("w32-unregister-hot-key", Fw32_unregister_hot_key,
6538 Sw32_unregister_hot_key, 1, 1, 0,
6539 doc: /* Unregister KEY as a hot-key combination. */)
6540 (Lisp_Object key)
6541 {
6542 Lisp_Object item;
6543
6544 if (!INTEGERP (key))
6545 key = w32_parse_hot_key (key);
6546
6547 item = Fmemq (key, w32_grabbed_keys);
6548
6549 if (!NILP (item))
6550 {
6551 /* Notify input thread about hot-key definition being removed, so
6552 that it takes effect without needing focus switch. */
6553 if (PostThreadMessage (dwWindowsThreadId, WM_EMACS_UNREGISTER_HOT_KEY,
6554 (WPARAM) XINT (XCAR (item)), (LPARAM) XLI (item)))
6555 {
6556 MSG msg;
6557 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
6558 }
6559 return Qt;
6560 }
6561 return Qnil;
6562 }
6563
6564 DEFUN ("w32-registered-hot-keys", Fw32_registered_hot_keys,
6565 Sw32_registered_hot_keys, 0, 0, 0,
6566 doc: /* Return list of registered hot-key IDs. */)
6567 (void)
6568 {
6569 return Fdelq (Qnil, Fcopy_sequence (w32_grabbed_keys));
6570 }
6571
6572 DEFUN ("w32-reconstruct-hot-key", Fw32_reconstruct_hot_key,
6573 Sw32_reconstruct_hot_key, 1, 1, 0,
6574 doc: /* Convert hot-key ID to a lisp key combination.
6575 usage: (w32-reconstruct-hot-key ID) */)
6576 (Lisp_Object hotkeyid)
6577 {
6578 int vk_code, w32_modifiers;
6579 Lisp_Object key;
6580
6581 CHECK_NUMBER (hotkeyid);
6582
6583 vk_code = HOTKEY_VK_CODE (hotkeyid);
6584 w32_modifiers = HOTKEY_MODIFIERS (hotkeyid);
6585
6586 if (vk_code < 256 && lispy_function_keys[vk_code])
6587 key = intern (lispy_function_keys[vk_code]);
6588 else
6589 key = make_number (vk_code);
6590
6591 key = Fcons (key, Qnil);
6592 if (w32_modifiers & MOD_SHIFT)
6593 key = Fcons (Qshift, key);
6594 if (w32_modifiers & MOD_CONTROL)
6595 key = Fcons (Qctrl, key);
6596 if (w32_modifiers & MOD_ALT)
6597 key = Fcons (NILP (Vw32_alt_is_meta) ? Qalt : Qmeta, key);
6598 if (w32_modifiers & MOD_WIN)
6599 key = Fcons (Qhyper, key);
6600
6601 return key;
6602 }
6603
6604 DEFUN ("w32-toggle-lock-key", Fw32_toggle_lock_key,
6605 Sw32_toggle_lock_key, 1, 2, 0,
6606 doc: /* Toggle the state of the lock key KEY.
6607 KEY can be `capslock', `kp-numlock', or `scroll'.
6608 If the optional parameter NEW-STATE is a number, then the state of KEY
6609 is set to off if the low bit of NEW-STATE is zero, otherwise on. */)
6610 (Lisp_Object key, Lisp_Object new_state)
6611 {
6612 int vk_code;
6613
6614 if (EQ (key, intern ("capslock")))
6615 vk_code = VK_CAPITAL;
6616 else if (EQ (key, intern ("kp-numlock")))
6617 vk_code = VK_NUMLOCK;
6618 else if (EQ (key, intern ("scroll")))
6619 vk_code = VK_SCROLL;
6620 else
6621 return Qnil;
6622
6623 if (!dwWindowsThreadId)
6624 return make_number (w32_console_toggle_lock_key (vk_code, new_state));
6625
6626 if (PostThreadMessage (dwWindowsThreadId, WM_EMACS_TOGGLE_LOCK_KEY,
6627 (WPARAM) vk_code, (LPARAM) XLI (new_state)))
6628 {
6629 MSG msg;
6630 GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
6631 return make_number (msg.wParam);
6632 }
6633 return Qnil;
6634 }
6635
6636 DEFUN ("w32-window-exists-p", Fw32_window_exists_p, Sw32_window_exists_p,
6637 2, 2, 0,
6638 doc: /* Return non-nil if a window exists with the specified CLASS and NAME.
6639
6640 This is a direct interface to the Windows API FindWindow function. */)
6641 (Lisp_Object class, Lisp_Object name)
6642 {
6643 HWND hnd;
6644
6645 if (!NILP (class))
6646 CHECK_STRING (class);
6647 if (!NILP (name))
6648 CHECK_STRING (name);
6649
6650 hnd = FindWindow (STRINGP (class) ? ((LPCTSTR) SDATA (class)) : NULL,
6651 STRINGP (name) ? ((LPCTSTR) SDATA (name)) : NULL);
6652 if (!hnd)
6653 return Qnil;
6654 return Qt;
6655 }
6656
6657 DEFUN ("w32-battery-status", Fw32_battery_status, Sw32_battery_status, 0, 0, 0,
6658 doc: /* Get power status information from Windows system.
6659
6660 The following %-sequences are provided:
6661 %L AC line status (verbose)
6662 %B Battery status (verbose)
6663 %b Battery status, empty means high, `-' means low,
6664 `!' means critical, and `+' means charging
6665 %p Battery load percentage
6666 %s Remaining time (to charge or discharge) in seconds
6667 %m Remaining time (to charge or discharge) in minutes
6668 %h Remaining time (to charge or discharge) in hours
6669 %t Remaining time (to charge or discharge) in the form `h:min' */)
6670 (void)
6671 {
6672 Lisp_Object status = Qnil;
6673
6674 SYSTEM_POWER_STATUS system_status;
6675 if (GetSystemPowerStatus (&system_status))
6676 {
6677 Lisp_Object line_status, battery_status, battery_status_symbol;
6678 Lisp_Object load_percentage, seconds, minutes, hours, remain;
6679
6680 long seconds_left = (long) system_status.BatteryLifeTime;
6681
6682 if (system_status.ACLineStatus == 0)
6683 line_status = build_string ("off-line");
6684 else if (system_status.ACLineStatus == 1)
6685 line_status = build_string ("on-line");
6686 else
6687 line_status = build_string ("N/A");
6688
6689 if (system_status.BatteryFlag & 128)
6690 {
6691 battery_status = build_string ("N/A");
6692 battery_status_symbol = empty_unibyte_string;
6693 }
6694 else if (system_status.BatteryFlag & 8)
6695 {
6696 battery_status = build_string ("charging");
6697 battery_status_symbol = build_string ("+");
6698 if (system_status.BatteryFullLifeTime != -1L)
6699 seconds_left = system_status.BatteryFullLifeTime - seconds_left;
6700 }
6701 else if (system_status.BatteryFlag & 4)
6702 {
6703 battery_status = build_string ("critical");
6704 battery_status_symbol = build_string ("!");
6705 }
6706 else if (system_status.BatteryFlag & 2)
6707 {
6708 battery_status = build_string ("low");
6709 battery_status_symbol = build_string ("-");
6710 }
6711 else if (system_status.BatteryFlag & 1)
6712 {
6713 battery_status = build_string ("high");
6714 battery_status_symbol = empty_unibyte_string;
6715 }
6716 else
6717 {
6718 battery_status = build_string ("medium");
6719 battery_status_symbol = empty_unibyte_string;
6720 }
6721
6722 if (system_status.BatteryLifePercent > 100)
6723 load_percentage = build_string ("N/A");
6724 else
6725 {
6726 char buffer[16];
6727 snprintf (buffer, 16, "%d", system_status.BatteryLifePercent);
6728 load_percentage = build_string (buffer);
6729 }
6730
6731 if (seconds_left < 0)
6732 seconds = minutes = hours = remain = build_string ("N/A");
6733 else
6734 {
6735 long m;
6736 float h;
6737 char buffer[16];
6738 snprintf (buffer, 16, "%ld", seconds_left);
6739 seconds = build_string (buffer);
6740
6741 m = seconds_left / 60;
6742 snprintf (buffer, 16, "%ld", m);
6743 minutes = build_string (buffer);
6744
6745 h = seconds_left / 3600.0;
6746 snprintf (buffer, 16, "%3.1f", h);
6747 hours = build_string (buffer);
6748
6749 snprintf (buffer, 16, "%ld:%02ld", m / 60, m % 60);
6750 remain = build_string (buffer);
6751 }
6752
6753 status = listn (CONSTYPE_HEAP, 8,
6754 Fcons (make_number ('L'), line_status),
6755 Fcons (make_number ('B'), battery_status),
6756 Fcons (make_number ('b'), battery_status_symbol),
6757 Fcons (make_number ('p'), load_percentage),
6758 Fcons (make_number ('s'), seconds),
6759 Fcons (make_number ('m'), minutes),
6760 Fcons (make_number ('h'), hours),
6761 Fcons (make_number ('t'), remain));
6762 }
6763 return status;
6764 }
6765
6766 \f
6767 #ifdef WINDOWSNT
6768 DEFUN ("file-system-info", Ffile_system_info, Sfile_system_info, 1, 1, 0,
6769 doc: /* Return storage information about the file system FILENAME is on.
6770 Value is a list of floats (TOTAL FREE AVAIL), where TOTAL is the total
6771 storage of the file system, FREE is the free storage, and AVAIL is the
6772 storage available to a non-superuser. All 3 numbers are in bytes.
6773 If the underlying system call fails, value is nil. */)
6774 (Lisp_Object filename)
6775 {
6776 Lisp_Object encoded, value;
6777
6778 CHECK_STRING (filename);
6779 filename = Fexpand_file_name (filename, Qnil);
6780 encoded = ENCODE_FILE (filename);
6781
6782 value = Qnil;
6783
6784 /* Determining the required information on Windows turns out, sadly,
6785 to be more involved than one would hope. The original Windows API
6786 call for this will return bogus information on some systems, but we
6787 must dynamically probe for the replacement api, since that was
6788 added rather late on. */
6789 {
6790 HMODULE hKernel = GetModuleHandle ("kernel32");
6791 BOOL (*pfn_GetDiskFreeSpaceEx)
6792 (char *, PULARGE_INTEGER, PULARGE_INTEGER, PULARGE_INTEGER)
6793 = (void *) GetProcAddress (hKernel, "GetDiskFreeSpaceEx");
6794
6795 /* On Windows, we may need to specify the root directory of the
6796 volume holding FILENAME. */
6797 char rootname[MAX_PATH];
6798 char *name = SDATA (encoded);
6799
6800 /* find the root name of the volume if given */
6801 if (isalpha (name[0]) && name[1] == ':')
6802 {
6803 rootname[0] = name[0];
6804 rootname[1] = name[1];
6805 rootname[2] = '\\';
6806 rootname[3] = 0;
6807 }
6808 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
6809 {
6810 char *str = rootname;
6811 int slashes = 4;
6812 do
6813 {
6814 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
6815 break;
6816 *str++ = *name++;
6817 }
6818 while ( *name );
6819
6820 *str++ = '\\';
6821 *str = 0;
6822 }
6823
6824 if (pfn_GetDiskFreeSpaceEx)
6825 {
6826 /* Unsigned large integers cannot be cast to double, so
6827 use signed ones instead. */
6828 LARGE_INTEGER availbytes;
6829 LARGE_INTEGER freebytes;
6830 LARGE_INTEGER totalbytes;
6831
6832 if (pfn_GetDiskFreeSpaceEx (rootname,
6833 (ULARGE_INTEGER *)&availbytes,
6834 (ULARGE_INTEGER *)&totalbytes,
6835 (ULARGE_INTEGER *)&freebytes))
6836 value = list3 (make_float ((double) totalbytes.QuadPart),
6837 make_float ((double) freebytes.QuadPart),
6838 make_float ((double) availbytes.QuadPart));
6839 }
6840 else
6841 {
6842 DWORD sectors_per_cluster;
6843 DWORD bytes_per_sector;
6844 DWORD free_clusters;
6845 DWORD total_clusters;
6846
6847 if (GetDiskFreeSpace (rootname,
6848 &sectors_per_cluster,
6849 &bytes_per_sector,
6850 &free_clusters,
6851 &total_clusters))
6852 value = list3 (make_float ((double) total_clusters
6853 * sectors_per_cluster * bytes_per_sector),
6854 make_float ((double) free_clusters
6855 * sectors_per_cluster * bytes_per_sector),
6856 make_float ((double) free_clusters
6857 * sectors_per_cluster * bytes_per_sector));
6858 }
6859 }
6860
6861 return value;
6862 }
6863 #endif /* WINDOWSNT */
6864
6865 \f
6866 DEFUN ("default-printer-name", Fdefault_printer_name, Sdefault_printer_name,
6867 0, 0, 0, doc: /* Return the name of Windows default printer device. */)
6868 (void)
6869 {
6870 static char pname_buf[256];
6871 int err;
6872 HANDLE hPrn;
6873 PRINTER_INFO_2 *ppi2 = NULL;
6874 DWORD dwNeeded = 0, dwReturned = 0;
6875
6876 /* Retrieve the default string from Win.ini (the registry).
6877 * String will be in form "printername,drivername,portname".
6878 * This is the most portable way to get the default printer. */
6879 if (GetProfileString ("windows", "device", ",,", pname_buf, sizeof (pname_buf)) <= 0)
6880 return Qnil;
6881 /* printername precedes first "," character */
6882 strtok (pname_buf, ",");
6883 /* We want to know more than the printer name */
6884 if (!OpenPrinter (pname_buf, &hPrn, NULL))
6885 return Qnil;
6886 GetPrinter (hPrn, 2, NULL, 0, &dwNeeded);
6887 if (dwNeeded == 0)
6888 {
6889 ClosePrinter (hPrn);
6890 return Qnil;
6891 }
6892 /* Allocate memory for the PRINTER_INFO_2 struct */
6893 ppi2 = xmalloc (dwNeeded);
6894 if (!ppi2)
6895 {
6896 ClosePrinter (hPrn);
6897 return Qnil;
6898 }
6899 /* Call GetPrinter again with big enough memory block. */
6900 err = GetPrinter (hPrn, 2, (LPBYTE)ppi2, dwNeeded, &dwReturned);
6901 ClosePrinter (hPrn);
6902 if (!err)
6903 {
6904 xfree (ppi2);
6905 return Qnil;
6906 }
6907
6908 if (ppi2)
6909 {
6910 if (ppi2->Attributes & PRINTER_ATTRIBUTE_SHARED && ppi2->pServerName)
6911 {
6912 /* a remote printer */
6913 if (*ppi2->pServerName == '\\')
6914 snprintf (pname_buf, sizeof (pname_buf), "%s\\%s", ppi2->pServerName,
6915 ppi2->pShareName);
6916 else
6917 snprintf (pname_buf, sizeof (pname_buf), "\\\\%s\\%s", ppi2->pServerName,
6918 ppi2->pShareName);
6919 pname_buf[sizeof (pname_buf) - 1] = '\0';
6920 }
6921 else
6922 {
6923 /* a local printer */
6924 strncpy (pname_buf, ppi2->pPortName, sizeof (pname_buf));
6925 pname_buf[sizeof (pname_buf) - 1] = '\0';
6926 /* `pPortName' can include several ports, delimited by ','.
6927 * we only use the first one. */
6928 strtok (pname_buf, ",");
6929 }
6930 xfree (ppi2);
6931 }
6932
6933 return build_string (pname_buf);
6934 }
6935 \f
6936
6937 /* Equivalent of strerror for W32 error codes. */
6938 char *
6939 w32_strerror (int error_no)
6940 {
6941 static char buf[500];
6942 DWORD ret;
6943
6944 if (error_no == 0)
6945 error_no = GetLastError ();
6946
6947 ret = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM |
6948 FORMAT_MESSAGE_IGNORE_INSERTS,
6949 NULL,
6950 error_no,
6951 0, /* choose most suitable language */
6952 buf, sizeof (buf), NULL);
6953
6954 while (ret > 0 && (buf[ret - 1] == '\n' ||
6955 buf[ret - 1] == '\r' ))
6956 --ret;
6957 buf[ret] = '\0';
6958 if (!ret)
6959 sprintf (buf, "w32 error %u", error_no);
6960
6961 return buf;
6962 }
6963
6964 /* For convenience when debugging. (You cannot call GetLastError
6965 directly from GDB: it will crash, because it uses the __stdcall
6966 calling convention, not the _cdecl convention assumed by GDB.) */
6967 DWORD
6968 w32_last_error (void)
6969 {
6970 return GetLastError ();
6971 }
6972
6973 /* Cache information describing the NT system for later use. */
6974 void
6975 cache_system_info (void)
6976 {
6977 union
6978 {
6979 struct info
6980 {
6981 char major;
6982 char minor;
6983 short platform;
6984 } info;
6985 DWORD data;
6986 } version;
6987
6988 /* Cache the module handle of Emacs itself. */
6989 hinst = GetModuleHandle (NULL);
6990
6991 /* Cache the version of the operating system. */
6992 version.data = GetVersion ();
6993 w32_major_version = version.info.major;
6994 w32_minor_version = version.info.minor;
6995
6996 if (version.info.platform & 0x8000)
6997 os_subtype = OS_9X;
6998 else
6999 os_subtype = OS_NT;
7000
7001 /* Cache page size, allocation unit, processor type, etc. */
7002 GetSystemInfo (&sysinfo_cache);
7003 syspage_mask = (DWORD_PTR)sysinfo_cache.dwPageSize - 1;
7004
7005 /* Cache os info. */
7006 osinfo_cache.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
7007 GetVersionEx (&osinfo_cache);
7008
7009 w32_build_number = osinfo_cache.dwBuildNumber;
7010 if (os_subtype == OS_9X)
7011 w32_build_number &= 0xffff;
7012
7013 w32_num_mouse_buttons = GetSystemMetrics (SM_CMOUSEBUTTONS);
7014 }
7015
7016 #ifdef EMACSDEBUG
7017 void
7018 _DebPrint (const char *fmt, ...)
7019 {
7020 char buf[1024];
7021 va_list args;
7022
7023 va_start (args, fmt);
7024 vsprintf (buf, fmt, args);
7025 va_end (args);
7026 #if CYGWIN
7027 fprintf (stderr, "%s", buf);
7028 #endif
7029 OutputDebugString (buf);
7030 }
7031 #endif
7032
7033 int
7034 w32_console_toggle_lock_key (int vk_code, Lisp_Object new_state)
7035 {
7036 int cur_state = (GetKeyState (vk_code) & 1);
7037
7038 if (NILP (new_state)
7039 || (NUMBERP (new_state)
7040 && ((XUINT (new_state)) & 1) != cur_state))
7041 {
7042 #ifdef WINDOWSNT
7043 faked_key = vk_code;
7044 #endif /* WINDOWSNT */
7045
7046 keybd_event ((BYTE) vk_code,
7047 (BYTE) MapVirtualKey (vk_code, 0),
7048 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
7049 keybd_event ((BYTE) vk_code,
7050 (BYTE) MapVirtualKey (vk_code, 0),
7051 KEYEVENTF_EXTENDEDKEY | 0, 0);
7052 keybd_event ((BYTE) vk_code,
7053 (BYTE) MapVirtualKey (vk_code, 0),
7054 KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
7055 cur_state = !cur_state;
7056 }
7057
7058 return cur_state;
7059 }
7060
7061 /* Translate console modifiers to emacs modifiers.
7062 German keyboard support (Kai Morgan Zeise 2/18/95). */
7063 int
7064 w32_kbd_mods_to_emacs (DWORD mods, WORD key)
7065 {
7066 int retval = 0;
7067
7068 /* If we recognize right-alt and left-ctrl as AltGr, and it has been
7069 pressed, first remove those modifiers. */
7070 if (!NILP (Vw32_recognize_altgr)
7071 && (mods & (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED))
7072 == (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED))
7073 mods &= ~ (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED);
7074
7075 if (mods & (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED))
7076 retval = ((NILP (Vw32_alt_is_meta)) ? alt_modifier : meta_modifier);
7077
7078 if (mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED))
7079 {
7080 retval |= ctrl_modifier;
7081 if ((mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED))
7082 == (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED))
7083 retval |= meta_modifier;
7084 }
7085
7086 if (mods & LEFT_WIN_PRESSED)
7087 retval |= w32_key_to_modifier (VK_LWIN);
7088 if (mods & RIGHT_WIN_PRESSED)
7089 retval |= w32_key_to_modifier (VK_RWIN);
7090 if (mods & APPS_PRESSED)
7091 retval |= w32_key_to_modifier (VK_APPS);
7092 if (mods & SCROLLLOCK_ON)
7093 retval |= w32_key_to_modifier (VK_SCROLL);
7094
7095 /* Just in case someone wanted the original behavior, make it
7096 optional by setting w32-capslock-is-shiftlock to t. */
7097 if (NILP (Vw32_capslock_is_shiftlock)
7098 /* Keys that should _not_ be affected by CapsLock. */
7099 && ( (key == VK_BACK)
7100 || (key == VK_TAB)
7101 || (key == VK_CLEAR)
7102 || (key == VK_RETURN)
7103 || (key == VK_ESCAPE)
7104 || ((key >= VK_SPACE) && (key <= VK_HELP))
7105 || ((key >= VK_NUMPAD0) && (key <= VK_F24))
7106 || ((key >= VK_NUMPAD_CLEAR) && (key <= VK_NUMPAD_DELETE))
7107 ))
7108 {
7109 /* Only consider shift state. */
7110 if ((mods & SHIFT_PRESSED) != 0)
7111 retval |= shift_modifier;
7112 }
7113 else
7114 {
7115 /* Ignore CapsLock state if not enabled. */
7116 if (NILP (Vw32_enable_caps_lock))
7117 mods &= ~CAPSLOCK_ON;
7118 if ((mods & (SHIFT_PRESSED | CAPSLOCK_ON)) != 0)
7119 retval |= shift_modifier;
7120 }
7121
7122 return retval;
7123 }
7124
7125 /* The return code indicates key code size. cpID is the codepage to
7126 use for translation to Unicode; -1 means use the current console
7127 input codepage. */
7128 int
7129 w32_kbd_patch_key (KEY_EVENT_RECORD *event, int cpId)
7130 {
7131 unsigned int key_code = event->wVirtualKeyCode;
7132 unsigned int mods = event->dwControlKeyState;
7133 BYTE keystate[256];
7134 static BYTE ansi_code[4];
7135 static int isdead = 0;
7136
7137 if (isdead == 2)
7138 {
7139 event->uChar.AsciiChar = ansi_code[2];
7140 isdead = 0;
7141 return 1;
7142 }
7143 if (event->uChar.AsciiChar != 0)
7144 return 1;
7145
7146 memset (keystate, 0, sizeof (keystate));
7147 keystate[key_code] = 0x80;
7148 if (mods & SHIFT_PRESSED)
7149 keystate[VK_SHIFT] = 0x80;
7150 if (mods & CAPSLOCK_ON)
7151 keystate[VK_CAPITAL] = 1;
7152 /* If we recognize right-alt and left-ctrl as AltGr, set the key
7153 states accordingly before invoking ToAscii. */
7154 if (!NILP (Vw32_recognize_altgr)
7155 && (mods & LEFT_CTRL_PRESSED) && (mods & RIGHT_ALT_PRESSED))
7156 {
7157 keystate[VK_CONTROL] = 0x80;
7158 keystate[VK_LCONTROL] = 0x80;
7159 keystate[VK_MENU] = 0x80;
7160 keystate[VK_RMENU] = 0x80;
7161 }
7162
7163 #if 0
7164 /* Because of an OS bug, ToAscii corrupts the stack when called to
7165 convert a dead key in console mode on NT4. Unfortunately, trying
7166 to check for dead keys using MapVirtualKey doesn't work either -
7167 these functions apparently use internal information about keyboard
7168 layout which doesn't get properly updated in console programs when
7169 changing layout (though apparently it gets partly updated,
7170 otherwise ToAscii wouldn't crash). */
7171 if (is_dead_key (event->wVirtualKeyCode))
7172 return 0;
7173 #endif
7174
7175 /* On NT, call ToUnicode instead and then convert to the current
7176 console input codepage. */
7177 if (os_subtype == OS_NT)
7178 {
7179 WCHAR buf[128];
7180
7181 isdead = ToUnicode (event->wVirtualKeyCode, event->wVirtualScanCode,
7182 keystate, buf, 128, 0);
7183 if (isdead > 0)
7184 {
7185 /* When we are called from the GUI message processing code,
7186 we are passed the current keyboard codepage, a positive
7187 number, to use below. */
7188 if (cpId == -1)
7189 cpId = GetConsoleCP ();
7190
7191 event->uChar.UnicodeChar = buf[isdead - 1];
7192 isdead = WideCharToMultiByte (cpId, 0, buf, isdead,
7193 ansi_code, 4, NULL, NULL);
7194 }
7195 else
7196 isdead = 0;
7197 }
7198 else
7199 {
7200 isdead = ToAscii (event->wVirtualKeyCode, event->wVirtualScanCode,
7201 keystate, (LPWORD) ansi_code, 0);
7202 }
7203
7204 if (isdead == 0)
7205 return 0;
7206 event->uChar.AsciiChar = ansi_code[0];
7207 return isdead;
7208 }
7209
7210
7211 void
7212 w32_sys_ring_bell (struct frame *f)
7213 {
7214 if (sound_type == 0xFFFFFFFF)
7215 {
7216 Beep (666, 100);
7217 }
7218 else if (sound_type == MB_EMACS_SILENT)
7219 {
7220 /* Do nothing. */
7221 }
7222 else
7223 MessageBeep (sound_type);
7224 }
7225
7226 \f
7227 /***********************************************************************
7228 Initialization
7229 ***********************************************************************/
7230
7231 /* Keep this list in the same order as frame_parms in frame.c.
7232 Use 0 for unsupported frame parameters. */
7233
7234 frame_parm_handler w32_frame_parm_handlers[] =
7235 {
7236 x_set_autoraise,
7237 x_set_autolower,
7238 x_set_background_color,
7239 x_set_border_color,
7240 x_set_border_width,
7241 x_set_cursor_color,
7242 x_set_cursor_type,
7243 x_set_font,
7244 x_set_foreground_color,
7245 x_set_icon_name,
7246 x_set_icon_type,
7247 x_set_internal_border_width,
7248 x_set_menu_bar_lines,
7249 x_set_mouse_color,
7250 x_explicitly_set_name,
7251 x_set_scroll_bar_width,
7252 x_set_title,
7253 x_set_unsplittable,
7254 x_set_vertical_scroll_bars,
7255 x_set_visibility,
7256 x_set_tool_bar_lines,
7257 0, /* x_set_scroll_bar_foreground, */
7258 0, /* x_set_scroll_bar_background, */
7259 x_set_screen_gamma,
7260 x_set_line_spacing,
7261 x_set_fringe_width,
7262 x_set_fringe_width,
7263 0, /* x_set_wait_for_wm, */
7264 x_set_fullscreen,
7265 x_set_font_backend,
7266 x_set_alpha,
7267 0, /* x_set_sticky */
7268 0, /* x_set_tool_bar_position */
7269 };
7270
7271 void
7272 syms_of_w32fns (void)
7273 {
7274 globals_of_w32fns ();
7275 track_mouse_window = NULL;
7276
7277 w32_visible_system_caret_hwnd = NULL;
7278
7279 DEFSYM (Qsuppress_icon, "suppress-icon");
7280 DEFSYM (Qundefined_color, "undefined-color");
7281 DEFSYM (Qcancel_timer, "cancel-timer");
7282 DEFSYM (Qhyper, "hyper");
7283 DEFSYM (Qsuper, "super");
7284 DEFSYM (Qmeta, "meta");
7285 DEFSYM (Qalt, "alt");
7286 DEFSYM (Qctrl, "ctrl");
7287 DEFSYM (Qcontrol, "control");
7288 DEFSYM (Qshift, "shift");
7289 DEFSYM (Qfont_param, "font-parameter");
7290 /* This is the end of symbol initialization. */
7291
7292
7293 Fput (Qundefined_color, Qerror_conditions,
7294 listn (CONSTYPE_PURE, 2, Qundefined_color, Qerror));
7295 Fput (Qundefined_color, Qerror_message,
7296 build_pure_c_string ("Undefined color"));
7297
7298 staticpro (&w32_grabbed_keys);
7299 w32_grabbed_keys = Qnil;
7300
7301 DEFVAR_LISP ("w32-color-map", Vw32_color_map,
7302 doc: /* An array of color name mappings for Windows. */);
7303 Vw32_color_map = Qnil;
7304
7305 DEFVAR_LISP ("w32-pass-alt-to-system", Vw32_pass_alt_to_system,
7306 doc: /* Non-nil if Alt key presses are passed on to Windows.
7307 When non-nil, for example, Alt pressed and released and then space will
7308 open the System menu. When nil, Emacs processes the Alt key events, and
7309 then silently swallows them. */);
7310 Vw32_pass_alt_to_system = Qnil;
7311
7312 DEFVAR_LISP ("w32-alt-is-meta", Vw32_alt_is_meta,
7313 doc: /* Non-nil if the Alt key is to be considered the same as the META key.
7314 When nil, Emacs will translate the Alt key to the ALT modifier, not to META. */);
7315 Vw32_alt_is_meta = Qt;
7316
7317 DEFVAR_INT ("w32-quit-key", w32_quit_key,
7318 doc: /* If non-zero, the virtual key code for an alternative quit key. */);
7319 w32_quit_key = 0;
7320
7321 DEFVAR_LISP ("w32-pass-lwindow-to-system",
7322 Vw32_pass_lwindow_to_system,
7323 doc: /* If non-nil, the left \"Windows\" key is passed on to Windows.
7324
7325 When non-nil, the Start menu is opened by tapping the key.
7326 If you set this to nil, the left \"Windows\" key is processed by Emacs
7327 according to the value of `w32-lwindow-modifier', which see.
7328
7329 Note that some combinations of the left \"Windows\" key with other keys are
7330 caught by Windows at low level, and so binding them in Emacs will have no
7331 effect. For example, <lwindow>-r always pops up the Windows Run dialog,
7332 <lwindow>-<Pause> pops up the "System Properties" dialog, etc. However, see
7333 the doc string of `w32-phantom-key-code'. */);
7334 Vw32_pass_lwindow_to_system = Qt;
7335
7336 DEFVAR_LISP ("w32-pass-rwindow-to-system",
7337 Vw32_pass_rwindow_to_system,
7338 doc: /* If non-nil, the right \"Windows\" key is passed on to Windows.
7339
7340 When non-nil, the Start menu is opened by tapping the key.
7341 If you set this to nil, the right \"Windows\" key is processed by Emacs
7342 according to the value of `w32-rwindow-modifier', which see.
7343
7344 Note that some combinations of the right \"Windows\" key with other keys are
7345 caught by Windows at low level, and so binding them in Emacs will have no
7346 effect. For example, <rwindow>-r always pops up the Windows Run dialog,
7347 <rwindow>-<Pause> pops up the "System Properties" dialog, etc. However, see
7348 the doc string of `w32-phantom-key-code'. */);
7349 Vw32_pass_rwindow_to_system = Qt;
7350
7351 DEFVAR_LISP ("w32-phantom-key-code",
7352 Vw32_phantom_key_code,
7353 doc: /* Virtual key code used to generate \"phantom\" key presses.
7354 Value is a number between 0 and 255.
7355
7356 Phantom key presses are generated in order to stop the system from
7357 acting on \"Windows\" key events when `w32-pass-lwindow-to-system' or
7358 `w32-pass-rwindow-to-system' is nil. */);
7359 /* Although 255 is technically not a valid key code, it works and
7360 means that this hack won't interfere with any real key code. */
7361 XSETINT (Vw32_phantom_key_code, 255);
7362
7363 DEFVAR_LISP ("w32-enable-num-lock",
7364 Vw32_enable_num_lock,
7365 doc: /* If non-nil, the Num Lock key acts normally.
7366 Set to nil to handle Num Lock as the `kp-numlock' key. */);
7367 Vw32_enable_num_lock = Qt;
7368
7369 DEFVAR_LISP ("w32-enable-caps-lock",
7370 Vw32_enable_caps_lock,
7371 doc: /* If non-nil, the Caps Lock key acts normally.
7372 Set to nil to handle Caps Lock as the `capslock' key. */);
7373 Vw32_enable_caps_lock = Qt;
7374
7375 DEFVAR_LISP ("w32-scroll-lock-modifier",
7376 Vw32_scroll_lock_modifier,
7377 doc: /* Modifier to use for the Scroll Lock ON state.
7378 The value can be hyper, super, meta, alt, control or shift for the
7379 respective modifier, or nil to handle Scroll Lock as the `scroll' key.
7380 Any other value will cause the Scroll Lock key to be ignored. */);
7381 Vw32_scroll_lock_modifier = Qnil;
7382
7383 DEFVAR_LISP ("w32-lwindow-modifier",
7384 Vw32_lwindow_modifier,
7385 doc: /* Modifier to use for the left \"Windows\" key.
7386 The value can be hyper, super, meta, alt, control or shift for the
7387 respective modifier, or nil to appear as the `lwindow' key.
7388 Any other value will cause the key to be ignored. */);
7389 Vw32_lwindow_modifier = Qnil;
7390
7391 DEFVAR_LISP ("w32-rwindow-modifier",
7392 Vw32_rwindow_modifier,
7393 doc: /* Modifier to use for the right \"Windows\" key.
7394 The value can be hyper, super, meta, alt, control or shift for the
7395 respective modifier, or nil to appear as the `rwindow' key.
7396 Any other value will cause the key to be ignored. */);
7397 Vw32_rwindow_modifier = Qnil;
7398
7399 DEFVAR_LISP ("w32-apps-modifier",
7400 Vw32_apps_modifier,
7401 doc: /* Modifier to use for the \"Apps\" key.
7402 The value can be hyper, super, meta, alt, control or shift for the
7403 respective modifier, or nil to appear as the `apps' key.
7404 Any other value will cause the key to be ignored. */);
7405 Vw32_apps_modifier = Qnil;
7406
7407 DEFVAR_BOOL ("w32-enable-synthesized-fonts", w32_enable_synthesized_fonts,
7408 doc: /* Non-nil enables selection of artificially italicized and bold fonts. */);
7409 w32_enable_synthesized_fonts = 0;
7410
7411 DEFVAR_LISP ("w32-enable-palette", Vw32_enable_palette,
7412 doc: /* Non-nil enables Windows palette management to map colors exactly. */);
7413 Vw32_enable_palette = Qt;
7414
7415 DEFVAR_INT ("w32-mouse-button-tolerance",
7416 w32_mouse_button_tolerance,
7417 doc: /* Analogue of double click interval for faking middle mouse events.
7418 The value is the minimum time in milliseconds that must elapse between
7419 left and right button down events before they are considered distinct events.
7420 If both mouse buttons are depressed within this interval, a middle mouse
7421 button down event is generated instead. */);
7422 w32_mouse_button_tolerance = GetDoubleClickTime () / 2;
7423
7424 DEFVAR_INT ("w32-mouse-move-interval",
7425 w32_mouse_move_interval,
7426 doc: /* Minimum interval between mouse move events.
7427 The value is the minimum time in milliseconds that must elapse between
7428 successive mouse move (or scroll bar drag) events before they are
7429 reported as lisp events. */);
7430 w32_mouse_move_interval = 0;
7431
7432 DEFVAR_BOOL ("w32-pass-extra-mouse-buttons-to-system",
7433 w32_pass_extra_mouse_buttons_to_system,
7434 doc: /* If non-nil, the fourth and fifth mouse buttons are passed to Windows.
7435 Recent versions of Windows support mice with up to five buttons.
7436 Since most applications don't support these extra buttons, most mouse
7437 drivers will allow you to map them to functions at the system level.
7438 If this variable is non-nil, Emacs will pass them on, allowing the
7439 system to handle them. */);
7440 w32_pass_extra_mouse_buttons_to_system = 0;
7441
7442 DEFVAR_BOOL ("w32-pass-multimedia-buttons-to-system",
7443 w32_pass_multimedia_buttons_to_system,
7444 doc: /* If non-nil, media buttons are passed to Windows.
7445 Some modern keyboards contain buttons for controlling media players, web
7446 browsers and other applications. Generally these buttons are handled on a
7447 system wide basis, but by setting this to nil they are made available
7448 to Emacs for binding. Depending on your keyboard, additional keys that
7449 may be available are:
7450
7451 browser-back, browser-forward, browser-refresh, browser-stop,
7452 browser-search, browser-favorites, browser-home,
7453 mail, mail-reply, mail-forward, mail-send,
7454 app-1, app-2,
7455 help, find, new, open, close, save, print, undo, redo, copy, cut, paste,
7456 spell-check, correction-list, toggle-dictate-command,
7457 media-next, media-previous, media-stop, media-play-pause, media-select,
7458 media-play, media-pause, media-record, media-fast-forward, media-rewind,
7459 media-channel-up, media-channel-down,
7460 volume-mute, volume-up, volume-down,
7461 mic-volume-mute, mic-volume-down, mic-volume-up, mic-toggle,
7462 bass-down, bass-boost, bass-up, treble-down, treble-up */);
7463 w32_pass_multimedia_buttons_to_system = 1;
7464
7465 #if 0 /* TODO: Mouse cursor customization. */
7466 DEFVAR_LISP ("x-pointer-shape", Vx_pointer_shape,
7467 doc: /* The shape of the pointer when over text.
7468 Changing the value does not affect existing frames
7469 unless you set the mouse color. */);
7470 Vx_pointer_shape = Qnil;
7471
7472 Vx_nontext_pointer_shape = Qnil;
7473
7474 Vx_mode_pointer_shape = Qnil;
7475
7476 DEFVAR_LISP ("x-hourglass-pointer-shape", Vx_hourglass_pointer_shape,
7477 doc: /* The shape of the pointer when Emacs is busy.
7478 This variable takes effect when you create a new frame
7479 or when you set the mouse color. */);
7480 Vx_hourglass_pointer_shape = Qnil;
7481
7482 DEFVAR_LISP ("x-sensitive-text-pointer-shape",
7483 Vx_sensitive_text_pointer_shape,
7484 doc: /* The shape of the pointer when over mouse-sensitive text.
7485 This variable takes effect when you create a new frame
7486 or when you set the mouse color. */);
7487 Vx_sensitive_text_pointer_shape = Qnil;
7488
7489 DEFVAR_LISP ("x-window-horizontal-drag-cursor",
7490 Vx_window_horizontal_drag_shape,
7491 doc: /* Pointer shape to use for indicating a window can be dragged horizontally.
7492 This variable takes effect when you create a new frame
7493 or when you set the mouse color. */);
7494 Vx_window_horizontal_drag_shape = Qnil;
7495 #endif
7496
7497 DEFVAR_LISP ("x-cursor-fore-pixel", Vx_cursor_fore_pixel,
7498 doc: /* A string indicating the foreground color of the cursor box. */);
7499 Vx_cursor_fore_pixel = Qnil;
7500
7501 DEFVAR_LISP ("x-max-tooltip-size", Vx_max_tooltip_size,
7502 doc: /* Maximum size for tooltips.
7503 Value is a pair (COLUMNS . ROWS). Text larger than this is clipped. */);
7504 Vx_max_tooltip_size = Fcons (make_number (80), make_number (40));
7505
7506 DEFVAR_LISP ("x-no-window-manager", Vx_no_window_manager,
7507 doc: /* Non-nil if no window manager is in use.
7508 Emacs doesn't try to figure this out; this is always nil
7509 unless you set it to something else. */);
7510 /* We don't have any way to find this out, so set it to nil
7511 and maybe the user would like to set it to t. */
7512 Vx_no_window_manager = Qnil;
7513
7514 DEFVAR_LISP ("x-pixel-size-width-font-regexp",
7515 Vx_pixel_size_width_font_regexp,
7516 doc: /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.
7517
7518 Since Emacs gets width of a font matching with this regexp from
7519 PIXEL_SIZE field of the name, font finding mechanism gets faster for
7520 such a font. This is especially effective for such large fonts as
7521 Chinese, Japanese, and Korean. */);
7522 Vx_pixel_size_width_font_regexp = Qnil;
7523
7524 DEFVAR_LISP ("w32-bdf-filename-alist",
7525 Vw32_bdf_filename_alist,
7526 doc: /* List of bdf fonts and their corresponding filenames. */);
7527 Vw32_bdf_filename_alist = Qnil;
7528
7529 DEFVAR_BOOL ("w32-strict-fontnames",
7530 w32_strict_fontnames,
7531 doc: /* Non-nil means only use fonts that are exact matches for those requested.
7532 Default is nil, which allows old fontnames that are not XLFD compliant,
7533 and allows third-party CJK display to work by specifying false charset
7534 fields to trick Emacs into translating to Big5, SJIS etc.
7535 Setting this to t will prevent wrong fonts being selected when
7536 fontsets are automatically created. */);
7537 w32_strict_fontnames = 0;
7538
7539 DEFVAR_BOOL ("w32-strict-painting",
7540 w32_strict_painting,
7541 doc: /* Non-nil means use strict rules for repainting frames.
7542 Set this to nil to get the old behavior for repainting; this should
7543 only be necessary if the default setting causes problems. */);
7544 w32_strict_painting = 1;
7545
7546 #if 0 /* TODO: Port to W32 */
7547 defsubr (&Sx_change_window_property);
7548 defsubr (&Sx_delete_window_property);
7549 defsubr (&Sx_window_property);
7550 #endif
7551 defsubr (&Sxw_display_color_p);
7552 defsubr (&Sx_display_grayscale_p);
7553 defsubr (&Sxw_color_defined_p);
7554 defsubr (&Sxw_color_values);
7555 defsubr (&Sx_server_max_request_size);
7556 defsubr (&Sx_server_vendor);
7557 defsubr (&Sx_server_version);
7558 defsubr (&Sx_display_pixel_width);
7559 defsubr (&Sx_display_pixel_height);
7560 defsubr (&Sx_display_mm_width);
7561 defsubr (&Sx_display_mm_height);
7562 defsubr (&Sx_display_screens);
7563 defsubr (&Sx_display_planes);
7564 defsubr (&Sx_display_color_cells);
7565 defsubr (&Sx_display_visual_class);
7566 defsubr (&Sx_display_backing_store);
7567 defsubr (&Sx_display_save_under);
7568 defsubr (&Sx_create_frame);
7569 defsubr (&Sx_open_connection);
7570 defsubr (&Sx_close_connection);
7571 defsubr (&Sx_display_list);
7572 defsubr (&Sx_synchronize);
7573 defsubr (&Sx_focus_frame);
7574
7575 /* W32 specific functions */
7576
7577 defsubr (&Sw32_define_rgb_color);
7578 defsubr (&Sw32_default_color_map);
7579 defsubr (&Sw32_send_sys_command);
7580 defsubr (&Sw32_shell_execute);
7581 defsubr (&Sw32_register_hot_key);
7582 defsubr (&Sw32_unregister_hot_key);
7583 defsubr (&Sw32_registered_hot_keys);
7584 defsubr (&Sw32_reconstruct_hot_key);
7585 defsubr (&Sw32_toggle_lock_key);
7586 defsubr (&Sw32_window_exists_p);
7587 defsubr (&Sw32_battery_status);
7588
7589 #ifdef WINDOWSNT
7590 defsubr (&Sfile_system_info);
7591 #endif
7592
7593 defsubr (&Sdefault_printer_name);
7594 defsubr (&Sset_message_beep);
7595
7596 hourglass_hwnd = NULL;
7597
7598 defsubr (&Sx_show_tip);
7599 defsubr (&Sx_hide_tip);
7600 tip_timer = Qnil;
7601 staticpro (&tip_timer);
7602 tip_frame = Qnil;
7603 staticpro (&tip_frame);
7604
7605 last_show_tip_args = Qnil;
7606 staticpro (&last_show_tip_args);
7607
7608 defsubr (&Sx_file_dialog);
7609 #ifdef WINDOWSNT
7610 defsubr (&Ssystem_move_file_to_trash);
7611 #endif
7612 }
7613
7614
7615 /*
7616 globals_of_w32fns is used to initialize those global variables that
7617 must always be initialized on startup even when the global variable
7618 initialized is non zero (see the function main in emacs.c).
7619 globals_of_w32fns is called from syms_of_w32fns when the global
7620 variable initialized is 0 and directly from main when initialized
7621 is non zero.
7622 */
7623 void
7624 globals_of_w32fns (void)
7625 {
7626 HMODULE user32_lib = GetModuleHandle ("user32.dll");
7627 /*
7628 TrackMouseEvent not available in all versions of Windows, so must load
7629 it dynamically. Do it once, here, instead of every time it is used.
7630 */
7631 track_mouse_event_fn = (TrackMouseEvent_Proc)
7632 GetProcAddress (user32_lib, "TrackMouseEvent");
7633
7634 monitor_from_point_fn = (MonitorFromPoint_Proc)
7635 GetProcAddress (user32_lib, "MonitorFromPoint");
7636 get_monitor_info_fn = (GetMonitorInfo_Proc)
7637 GetProcAddress (user32_lib, "GetMonitorInfoA");
7638
7639 {
7640 HMODULE imm32_lib = GetModuleHandle ("imm32.dll");
7641 get_composition_string_fn = (ImmGetCompositionString_Proc)
7642 GetProcAddress (imm32_lib, "ImmGetCompositionStringW");
7643 get_ime_context_fn = (ImmGetContext_Proc)
7644 GetProcAddress (imm32_lib, "ImmGetContext");
7645 release_ime_context_fn = (ImmReleaseContext_Proc)
7646 GetProcAddress (imm32_lib, "ImmReleaseContext");
7647 set_ime_composition_window_fn = (ImmSetCompositionWindow_Proc)
7648 GetProcAddress (imm32_lib, "ImmSetCompositionWindow");
7649 }
7650 DEFVAR_INT ("w32-ansi-code-page",
7651 w32_ansi_code_page,
7652 doc: /* The ANSI code page used by the system. */);
7653 w32_ansi_code_page = GetACP ();
7654
7655 if (os_subtype == OS_NT)
7656 w32_unicode_gui = 1;
7657 else
7658 w32_unicode_gui = 0;
7659
7660 /* MessageBox does not work without this when linked to comctl32.dll 6.0. */
7661 InitCommonControls ();
7662
7663 syms_of_w32uniscribe ();
7664 }
7665
7666 typedef USHORT (WINAPI * CaptureStackBackTrace_proc) (ULONG, ULONG, PVOID *,
7667 PULONG);
7668
7669 #define BACKTRACE_LIMIT_MAX 62
7670
7671 int
7672 w32_backtrace (void **buffer, int limit)
7673 {
7674 static CaptureStackBackTrace_proc s_pfn_CaptureStackBackTrace = NULL;
7675 HMODULE hm_kernel32 = NULL;
7676
7677 if (!s_pfn_CaptureStackBackTrace)
7678 {
7679 hm_kernel32 = LoadLibrary ("Kernel32.dll");
7680 s_pfn_CaptureStackBackTrace =
7681 (CaptureStackBackTrace_proc) GetProcAddress (hm_kernel32,
7682 "RtlCaptureStackBackTrace");
7683 }
7684 if (s_pfn_CaptureStackBackTrace)
7685 return s_pfn_CaptureStackBackTrace (0, min (BACKTRACE_LIMIT_MAX, limit),
7686 buffer, NULL);
7687 return 0;
7688 }
7689
7690 void
7691 emacs_abort (void)
7692 {
7693 int button;
7694 button = MessageBox (NULL,
7695 "A fatal error has occurred!\n\n"
7696 "Would you like to attach a debugger?\n\n"
7697 "Select:\n"
7698 "YES -- to debug Emacs, or\n"
7699 "NO -- to abort Emacs and produce a backtrace\n"
7700 " (emacs_backtrace.txt in current directory)."
7701 #if __GNUC__
7702 "\n\n(type \"gdb -p <emacs-PID>\" and\n"
7703 "\"continue\" inside GDB before clicking YES.)"
7704 #endif
7705 , "Emacs Abort Dialog",
7706 MB_ICONEXCLAMATION | MB_TASKMODAL
7707 | MB_SETFOREGROUND | MB_YESNO);
7708 switch (button)
7709 {
7710 case IDYES:
7711 DebugBreak ();
7712 exit (2); /* tell the compiler we will never return */
7713 case IDNO:
7714 default:
7715 {
7716 void *stack[BACKTRACE_LIMIT_MAX + 1];
7717 int i = w32_backtrace (stack, BACKTRACE_LIMIT_MAX + 1);
7718
7719 if (i)
7720 {
7721 #ifdef CYGWIN
7722 int stderr_fd = 2;
7723 #else
7724 HANDLE errout = GetStdHandle (STD_ERROR_HANDLE);
7725 int stderr_fd = -1;
7726 #endif
7727 int errfile_fd = -1;
7728 int j;
7729
7730 #ifndef CYGWIN
7731 if (errout && errout != INVALID_HANDLE_VALUE)
7732 stderr_fd = _open_osfhandle ((intptr_t)errout, O_APPEND | O_BINARY);
7733 #endif
7734 if (stderr_fd >= 0)
7735 write (stderr_fd, "\r\nBacktrace:\r\n", 14);
7736 #ifdef CYGWIN
7737 #define _open open
7738 #endif
7739 errfile_fd = _open ("emacs_backtrace.txt", O_RDWR | O_CREAT | O_BINARY, S_IREAD | S_IWRITE);
7740 if (errfile_fd >= 0)
7741 {
7742 lseek (errfile_fd, 0L, SEEK_END);
7743 write (errfile_fd, "\r\nBacktrace:\r\n", 14);
7744 }
7745
7746 for (j = 0; j < i; j++)
7747 {
7748 char buf[INT_BUFSIZE_BOUND (void *)];
7749
7750 /* stack[] gives the return addresses, whereas we want
7751 the address of the call, so decrease each address
7752 by approximate size of 1 CALL instruction. */
7753 sprintf (buf, "0x%p\r\n", (char *)stack[j] - sizeof(void *));
7754 if (stderr_fd >= 0)
7755 write (stderr_fd, buf, strlen (buf));
7756 if (errfile_fd >= 0)
7757 write (errfile_fd, buf, strlen (buf));
7758 }
7759 if (i == BACKTRACE_LIMIT_MAX)
7760 {
7761 if (stderr_fd >= 0)
7762 write (stderr_fd, "...\r\n", 5);
7763 if (errfile_fd >= 0)
7764 write (errfile_fd, "...\r\n", 5);
7765 }
7766 if (errfile_fd >= 0)
7767 close (errfile_fd);
7768 }
7769 abort ();
7770 break;
7771 }
7772 }
7773 }
7774
7775 #ifdef NTGUI_UNICODE
7776
7777 Lisp_Object
7778 ntgui_encode_system (Lisp_Object str)
7779 {
7780 Lisp_Object encoded;
7781 to_unicode (str, &encoded);
7782 return encoded;
7783 }
7784
7785 #endif /* NTGUI_UNICODE */
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