src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft Windows API.
   2    Copyright (C) 1995, 2001-2013 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software: you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation, either version 3 of the License, or
   9 (at your option) any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 /* Added by Kevin Gallo */
  20
  21 #include "w32gui.h"
  22 #include "frame.h"
  23 #include "atimer.h"
  24
  25 \f
  26 #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
  27 #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
  28
  29 #define FONT_WIDTH(f)     ((f)->max_width)
  30 #define FONT_HEIGHT(f)    ((f)->height)
  31 #define FONT_BASE(f)      ((f)->ascent)
  32 #define FONT_DESCENT(f)   ((f)->descent)
  33
  34 #define CP_DEFAULT 1004
  35
  36 #define CHECK_W32_FRAME(f, frame)               \
  37   if (NILP (frame))                             \
  38     f = SELECTED_FRAME ();                      \
  39   else                                          \
  40     {                                           \
  41       CHECK_LIVE_FRAME (frame, 0);              \
  42       f = XFRAME (frame);                       \
  43     }                                           \
  44   if (! FRAME_W32_P (f))
  45
  46 /* Indicates whether we are in the readsocket call and the message we
  47    are processing in the current loop */
  48
  49 extern MSG CurMsg;
  50 extern BOOL bUseDflt;
  51
  52 /* Structure recording bitmaps and reference count.
  53    If REFCOUNT is 0 then this record is free to be reused.  */
  54
  55 struct w32_bitmap_record
  56 {
  57   Pixmap pixmap;
  58   char *file;
  59   HINSTANCE hinst; /* Used to load the file */
  60   int refcount;
  61   /* Record some info about this pixmap.  */
  62   int height, width, depth;
  63 };
  64
  65 struct w32_palette_entry {
  66   struct w32_palette_entry * next;
  67   PALETTEENTRY entry;
  68 #if 0
  69   unsigned refcount;
  70 #endif
  71 };
  72
  73 extern void w32_regenerate_palette (struct frame *f);
  74 extern void w32_fullscreen_rect (HWND hwnd, int fsmode, RECT normal,
  75                                  RECT *rect);
  76
  77 \f
  78 /* For each display (currently only one on w32), we have a structure that
  79    records information about it.  */
  80
  81 struct w32_display_info
  82 {
  83   /* Chain of all w32_display_info structures.  */
  84   struct w32_display_info *next;
  85
  86   /* The generic display parameters corresponding to this w32 display.  */
  87   struct terminal *terminal;
  88
  89   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
  90      The same cons cell also appears in x_display_name_list.  */
  91   Lisp_Object name_list_element;
  92
  93   /* Number of frames that are on this display.  */
  94   int reference_count;
  95
  96   /* Dots per inch of the screen.  */
  97   double resx, resy;
  98
  99   /* Number of planes on this screen.  */
 100   int n_planes;
 101
 102   /* Number of bits per pixel on this screen.  */
 103   int n_cbits;
 104
 105   /* Mask of things that cause the mouse to be grabbed.  */
 106   int grabbed;
 107
 108   /* Emacs bitmap-id of the default icon bitmap for this frame.
 109      Or -1 if none has been allocated yet.  */
 110   ptrdiff_t icon_bitmap_id;
 111
 112   /* The root window of this screen.  */
 113   Window root_window;
 114
 115   /* The cursor to use for vertical scroll bars.  */
 116   Cursor vertical_scroll_bar_cursor;
 117
 118   /* Resource data base */
 119   XrmDatabase xrdb;
 120
 121   /* color palette information.  */
 122   int has_palette;
 123   struct w32_palette_entry * color_list;
 124   unsigned num_colors;
 125   HPALETTE palette;
 126
 127   /* deferred action flags checked when starting frame update.  */
 128   int regen_palette;
 129
 130   /* Keystroke that has been faked by Emacs and will be ignored when
 131      received; value is reset after key is received.  */
 132   int faked_key;
 133
 134   /* Minimum width over all characters in all fonts in font_table.  */
 135   int smallest_char_width;
 136
 137   /* Minimum font height over all fonts in font_table.  */
 138   int smallest_font_height;
 139
 140   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 141   XGCValues *scratch_cursor_gc;
 142
 143   /* Information about the range of text currently shown in
 144      mouse-face.  */
 145   Mouse_HLInfo mouse_highlight;
 146
 147   char *w32_id_name;
 148
 149   /* The number of fonts actually stored in w32_font_table.
 150      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 151      n_fonts <= font_table_size. and font_table[i].name != 0. */
 152   int n_fonts;
 153
 154   /* Pointer to bitmap records.  */
 155   struct w32_bitmap_record *bitmaps;
 156
 157   /* Allocated size of bitmaps field.  */
 158   ptrdiff_t bitmaps_size;
 159
 160   /* Last used bitmap index.  */
 161   ptrdiff_t bitmaps_last;
 162
 163   /* The frame (if any) which has the window that has keyboard focus.
 164      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 165      that a mere EnterNotify event can set this; if you need to know the
 166      last frame specified in a FocusIn or FocusOut event, use
 167      w32_focus_event_frame.  */
 168   struct frame *w32_focus_frame;
 169
 170   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 171      separate from w32_focus_frame, because whether or not LeaveNotify
 172      events cause us to lose focus depends on whether or not we have
 173      received a FocusIn event for it.  */
 174   struct frame *w32_focus_event_frame;
 175
 176   /* The frame which currently has the visual highlight, and should get
 177      keyboard input (other sorts of input have the frame encoded in the
 178      event).  It points to the focus frame's selected window's
 179      frame.  It differs from w32_focus_frame when we're using a global
 180      minibuffer.  */
 181   struct frame *x_highlight_frame;
 182 };
 183
 184 /* This is a chain of structures for all the displays currently in use.  */
 185 extern struct w32_display_info *x_display_list;
 186 extern struct w32_display_info one_w32_display_info;
 187
 188 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 189    one for each element of w32_display_list and in the same order.
 190    NAME is the name of the frame.
 191    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 192 extern Lisp_Object w32_display_name_list;
 193
 194 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 195
 196 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 197
 198 Lisp_Object display_x_get_resource (struct w32_display_info *,
 199                                     Lisp_Object, Lisp_Object,
 200                                     Lisp_Object, Lisp_Object);
 201
 202 /* also defined in xterm.h XXX: factor out to common header */
 203
 204 extern struct w32_display_info *w32_term_init (Lisp_Object,
 205                                                char *, char *);
 206 extern int w32_defined_color (struct frame *f, const char *color,
 207                               XColor *color_def, int alloc);
 208 extern void x_set_window_size (struct frame *f, int change_grav,
 209                               int cols, int rows);
 210 extern int x_display_pixel_height (struct w32_display_info *);
 211 extern int x_display_pixel_width (struct w32_display_info *);
 212 extern Lisp_Object x_get_focus_frame (struct frame *);
 213 extern void x_set_mouse_position (struct frame *f, int h, int v);
 214 extern void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
 215 extern void x_make_frame_visible (struct frame *f);
 216 extern void x_make_frame_invisible (struct frame *f);
 217 extern void x_iconify_frame (struct frame *f);
 218 extern void x_set_frame_alpha (struct frame *f);
 219 extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 220 extern void x_set_tool_bar_lines (struct frame *f,
 221                                   Lisp_Object value,
 222                                   Lisp_Object oldval);
 223 extern void x_activate_menubar (struct frame *);
 224 extern int x_bitmap_icon (struct frame *, Lisp_Object);
 225 extern void initialize_frame_menubar (struct frame *);
 226 extern void x_free_frame_resources (struct frame *);
 227 extern void x_real_positions (struct frame *, int *, int *);
 228
 229 /* w32inevt.c */
 230 extern int w32_kbd_patch_key (KEY_EVENT_RECORD *event, int cpId);
 231 extern int w32_kbd_mods_to_emacs (DWORD mods, WORD key);
 232
 233
 234 extern Lisp_Object x_get_focus_frame (struct frame *);
 235
 236 \f
 237 #define PIX_TYPE COLORREF
 238
 239 /* Each W32 frame object points to its own struct w32_display object
 240    in the output_data.w32 field.  The w32_display structure contains all
 241    the information that is specific to W32 windows.  */
 242
 243 /* Put some things in x_output for compatibility.
 244    NTEMACS_TODO: Move all common things here to eliminate unnecessary
 245    diffs between X and w32 code.  */
 246 struct x_output
 247 {
 248   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 249      frame, or IMPLICIT if we received an EnterNotify.
 250      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 251   int focus_state;
 252 };
 253
 254 enum
 255 {
 256   /* Values for focus_state, used as bit mask.
 257      EXPLICIT means we received a FocusIn for the frame and know it has
 258      the focus.  IMPLICIT means we received an EnterNotify and the frame
 259      may have the focus if no window manager is running.
 260      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 261   FOCUS_NONE     = 0,
 262   FOCUS_IMPLICIT = 1,
 263   FOCUS_EXPLICIT = 2
 264 };
 265
 266 struct w32_output
 267 {
 268   /* Placeholder for things accessed through output_data.x.  */
 269   struct x_output x_compatible;
 270
 271   /* Menubar "widget" handle.  */
 272   HMENU menubar_widget;
 273
 274   /* Original palette (used to deselect real palette after drawing) */
 275   HPALETTE old_palette;
 276
 277   /* Here are the Graphics Contexts for the default font.  */
 278   XGCValues *cursor_gc;                         /* cursor drawing */
 279
 280   /* The window used for this frame.
 281      May be zero while the frame object is being created
 282      and the window has not yet been created.  */
 283   Window window_desc;
 284
 285   /* The window that is the parent of this window.
 286      Usually this is a window that was made by the window manager,
 287      but it can be the root window, and it can be explicitly specified
 288      (see the explicit_parent field, below).  */
 289   Window parent_desc;
 290
 291   /* Default ASCII font of this frame. */
 292   struct font *font;
 293
 294   /* The baseline offset of the default ASCII font.  */
 295   int baseline_offset;
 296
 297   /* If a fontset is specified for this frame instead of font, this
 298      value contains an ID of the fontset, else -1.  */
 299   int fontset;
 300
 301   /* Pixel values used for various purposes.
 302      border_pixel may be -1 meaning use a gray tile.  */
 303   COLORREF cursor_pixel;
 304   COLORREF border_pixel;
 305   COLORREF mouse_pixel;
 306   COLORREF cursor_foreground_pixel;
 307
 308   /* Foreground color for scroll bars.  A value of -1 means use the
 309      default (black for non-toolkit scroll bars).  */
 310   COLORREF scroll_bar_foreground_pixel;
 311
 312   /* Background color for scroll bars.  A value of -1 means use the
 313      default (background color of the frame for non-toolkit scroll
 314      bars).  */
 315   COLORREF scroll_bar_background_pixel;
 316
 317   /* Descriptor for the cursor in use for this window.  */
 318   Cursor text_cursor;
 319   Cursor nontext_cursor;
 320   Cursor modeline_cursor;
 321   Cursor hand_cursor;
 322   Cursor hourglass_cursor;
 323   Cursor horizontal_drag_cursor;
 324
 325   /* Non-zero means hourglass cursor is currently displayed.  */
 326   unsigned hourglass_p : 1;
 327
 328   /* Non-hourglass cursor that is currently active.  */
 329   Cursor current_cursor;
 330
 331   DWORD dwStyle;
 332
 333   /* This is the Emacs structure for the display this frame is on.  */
 334   /* struct w32_display_info *display_info; */
 335
 336   /* Nonzero means our parent is another application's window
 337      and was explicitly specified.  */
 338   unsigned explicit_parent : 1;
 339
 340   /* Nonzero means tried already to make this frame visible.  */
 341   unsigned asked_for_visible : 1;
 342
 343   /* Nonzero means menubar is currently active.  */
 344   unsigned menubar_active : 1;
 345
 346   /* Relief GCs, colors etc.  */
 347   struct relief
 348   {
 349     XGCValues *gc;
 350     unsigned long pixel;
 351     int allocated_p;
 352   }
 353   black_relief, white_relief;
 354
 355   /* The background for which the above relief GCs were set up.
 356      They are changed only when a different background is involved.  */
 357   unsigned long relief_background;
 358
 359   /* Frame geometry and full-screen mode before it was resized by
 360      specifying the 'fullscreen' frame parameter.  Used to restore the
 361      geometry when 'fullscreen' is reset to nil.  */
 362   WINDOWPLACEMENT normal_placement;
 363   int prev_fsmode;
 364 };
 365
 366 extern struct w32_output w32term_display;
 367
 368 /* Return the X output data for frame F.  */
 369 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 370
 371 /* Return the window associated with the frame F.  */
 372 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 373 #define FRAME_X_WINDOW(f) FRAME_W32_WINDOW (f)
 374
 375 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 376 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 377 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 378
 379 /* This gives the w32_display_info structure for the display F is on.  */
 380 #define FRAME_DISPLAY_INFO(f) (&one_w32_display_info)
 381
 382 /* This is the `Display *' which frame F is on.  */
 383 #define FRAME_X_DISPLAY(f) (0)
 384
 385 #define FRAME_NORMAL_PLACEMENT(F) ((F)->output_data.w32->normal_placement)
 386 #define FRAME_PREV_FSMODE(F)      ((F)->output_data.w32->prev_fsmode)
 387
 388 \f
 389 /* W32-specific scroll bar stuff.  */
 390
 391 /* We represent scroll bars as lisp vectors.  This allows us to place
 392    references to them in windows without worrying about whether we'll
 393    end up with windows referring to dead scroll bars; the garbage
 394    collector will free it when its time comes.
 395
 396    We use struct scroll_bar as a template for accessing fields of the
 397    vector.  */
 398
 399 struct scroll_bar {
 400
 401   /* This field is shared by all vectors.  */
 402   struct vectorlike_header header;
 403
 404   /* The window we're a scroll bar for.  */
 405   Lisp_Object window;
 406
 407   /* The next and previous in the chain of scroll bars in this frame.  */
 408   Lisp_Object next, prev;
 409
 410   /* The window representing this scroll bar.  Since this is a full
 411      32-bit quantity, we store it split into two 32-bit values.  */
 412   Lisp_Object w32_window_low, w32_window_high;
 413
 414   /* Same as above for the widget.  */
 415   Lisp_Object w32_widget_low, w32_widget_high;
 416
 417   /* The position and size of the scroll bar in pixels, relative to the
 418      frame.  */
 419   Lisp_Object top, left, width, height;
 420
 421   /* The starting and ending positions of the handle, relative to the
 422      handle area (i.e. zero is the top position, not
 423      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 424      hasn't been drawn yet.
 425
 426      These are not actually the locations where the beginning and end
 427      are drawn; in order to keep handles from becoming invisible when
 428      editing large files, we establish a minimum height by always
 429      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 430      where they would be normally; the bottom and top are in a
 431      different co-ordinate system.  */
 432   Lisp_Object start, end;
 433
 434   /* If the scroll bar handle is currently being dragged by the user,
 435      this is the number of pixels from the top of the handle to the
 436      place where the user grabbed it.  If the handle isn't currently
 437      being dragged, this is Qnil.  */
 438   Lisp_Object dragging;
 439
 440   /* 1 if the background of the fringe that is adjacent to a scroll
 441      bar is extended to the gap between the fringe and the bar.  */
 442   /* Note: this could be a bit field, but we need to take its address
 443      in ALLOCATE_PSEUDOVECTOR (see x_scroll_bar_create).  */
 444   bool fringe_extended_p;
 445 };
 446
 447 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 448 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 449
 450 #ifdef _WIN64
 451 /* Building a 64-bit C integer from two 32-bit lisp integers.  */
 452 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 32 | XINT (low))
 453
 454 /* Setting two lisp integers to the low and high words of a 64-bit C int.  */
 455 #define SCROLL_BAR_UNPACK(low, high, int64) \
 456   (XSETINT ((low),   ((DWORDLONG)(int64))        & 0xffffffff), \
 457    XSETINT ((high), ((DWORDLONG)(int64) >> 32) & 0xffffffff))
 458 #else  /* not _WIN64 */
 459 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 460 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 461
 462 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 463 #define SCROLL_BAR_UNPACK(low, high, int32) \
 464   (XSETINT ((low),   (int32)        & 0xffff), \
 465    XSETINT ((high), ((int32) >> 16) & 0xffff))
 466 #endif  /* not _WIN64 */
 467
 468 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 469 #define SCROLL_BAR_W32_WINDOW(ptr) \
 470   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 471
 472 /* Store a window id in a struct scroll_bar.  */
 473 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 474   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (intptr_t) id))
 475
 476 /* Return the inside width of a vertical scroll bar, given the outside
 477    width.  */
 478 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 479   ((width) \
 480    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 481    - VERTICAL_SCROLL_BAR_RIGHT_BORDER)
 482
 483 /* Return the length of the rectangle within which the top of the
 484    handle must stay.  This isn't equivalent to the inside height,
 485    because the scroll bar handle has a minimum height.
 486
 487    This is the real range of motion for the scroll bar, so when we're
 488    scaling buffer positions to scroll bar positions, we use this, not
 489    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 490 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 491   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 492
 493 /* Return the inside height of vertical scroll bar, given the outside
 494    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 495 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 496   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 497
 498
 499 /* Border widths for scroll bars.
 500
 501    Scroll bar windows don't have any borders; their border width is
 502    set to zero, and we redraw borders ourselves.  This makes the code
 503    a bit cleaner, since we don't have to convert between outside width
 504    (used when relating to the rest of the screen) and inside width
 505    (used when sizing and drawing the scroll bar window itself).
 506
 507    The handle moves up and down/back and forth in a rectangle inset
 508    from the edges of the scroll bar.  These are widths by which we
 509    inset the handle boundaries from the scroll bar edges.  */
 510 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 511 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 512 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 513 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 514
 515 /* Minimum lengths for scroll bar handles, in pixels.  */
 516 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 517
 518 struct frame;  /* from frame.h */
 519
 520 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 521 extern void w32_clear_window (struct frame *);
 522
 523 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 524 do { \
 525     RECT rect; \
 526     rect.left = x; \
 527     rect.top = y; \
 528     rect.right = x + nx; \
 529     rect.bottom = y + ny; \
 530     w32_fill_rect (f,hdc,pix,&rect); \
 531 } while (0)
 532
 533 #define w32_clear_rect(f,hdc,lprect) \
 534   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 535
 536 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 537   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 538
 539 /* Define for earlier versions of Visual C */
 540 #ifndef WM_MOUSEWHEEL
 541 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 542 #endif /* WM_MOUSEWHEEL */
 543 #ifndef MSH_MOUSEWHEEL
 544 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 545 #endif /* MSH_MOUSEWHEEL */
 546 #ifndef WM_XBUTTONDOWN
 547 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 548 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 549 #endif /* WM_XBUTTONDOWN */
 550 #ifndef WM_MOUSEHWHEEL
 551 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 552 #endif /* WM_MOUSEHWHEEL  */
 553 #ifndef WM_APPCOMMAND
 554 #define WM_APPCOMMAND 0x319
 555 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 556 #endif
 557 #ifndef WM_UNICHAR
 558 #define WM_UNICHAR 0x109
 559 #endif
 560 #ifndef UNICODE_NOCHAR
 561 #define UNICODE_NOCHAR 0xFFFF
 562 #endif
 563
 564 #define WM_EMACS_START                 (WM_USER + 1)
 565 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 566 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 567 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 568 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 569 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 570 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 571 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 572 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 573 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 574 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 575 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 576 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 577 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 578 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 579 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 580 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 581 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 582 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 583 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 584 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 585 #define WM_EMACS_PAINT                 (WM_EMACS_START + 20)
 586 #define WM_EMACS_BRINGTOTOP            (WM_EMACS_START + 21)
 587 #define WM_EMACS_INPUT_READY           (WM_EMACS_START + 22)
 588 #define WM_EMACS_FILENOTIFY            (WM_EMACS_START + 23)
 589 #define WM_EMACS_END                   (WM_EMACS_START + 24)
 590
 591 #define WND_FONTWIDTH_INDEX    (0)
 592 #define WND_LINEHEIGHT_INDEX   (4)
 593 #define WND_BORDER_INDEX       (8)
 594 #define WND_SCROLLBAR_INDEX    (12)
 595 #define WND_BACKGROUND_INDEX   (16)
 596 #define WND_LAST_INDEX         (20)
 597
 598 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 599
 600 extern DWORD dwWindowsThreadId;
 601 extern HANDLE hWindowsThread;
 602 extern DWORD dwMainThreadId;
 603 extern HANDLE hMainThread;
 604
 605 typedef struct W32Msg {
 606     MSG msg;
 607     DWORD dwModifiers;
 608     RECT rect;
 609 } W32Msg;
 610
 611 extern BOOL prepend_msg (W32Msg *lpmsg);
 612
 613 /* Structure for recording message when input thread must return a
 614    result that depends on lisp thread to compute.  Lisp thread can
 615    complete deferred messages out of order.  */
 616 typedef struct deferred_msg
 617 {
 618   struct deferred_msg * next;
 619   W32Msg                w32msg;
 620   LRESULT               result;
 621   int                   completed;
 622 } deferred_msg;
 623
 624 extern CRITICAL_SECTION critsect;
 625
 626 extern void init_crit (void);
 627 extern void delete_crit (void);
 628
 629 extern void signal_quit (void);
 630
 631 #define enter_crit() EnterCriticalSection (&critsect)
 632 #define leave_crit() LeaveCriticalSection (&critsect)
 633
 634 extern void select_palette (struct frame * f, HDC hdc);
 635 extern void deselect_palette (struct frame * f, HDC hdc);
 636 extern HDC get_frame_dc (struct frame * f);
 637 extern int release_frame_dc (struct frame * f, HDC hDC);
 638
 639 extern int drain_message_queue (void);
 640
 641 extern BOOL get_next_msg (W32Msg *, BOOL);
 642 extern BOOL post_msg (W32Msg *);
 643 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 644
 645 extern BOOL parse_button (int, int, int *, int *);
 646
 647 extern void w32_sys_ring_bell (struct frame *f);
 648 extern void x_delete_display (struct w32_display_info *dpyinfo);
 649
 650 extern volatile int notification_buffer_in_use;
 651 extern BYTE file_notifications[16384];
 652 extern DWORD notifications_size;
 653 extern void *notifications_desc;
 654 extern Lisp_Object w32_get_watch_object (void *);
 655 extern Lisp_Object lispy_file_action (DWORD);
 656
 657 extern void w32_initialize_display_info (Lisp_Object);
 658 extern void initialize_w32_display (struct terminal *, int *, int *);
 659
 660 /* Keypad command key support.  W32 doesn't have virtual keys defined
 661    for the function keys on the keypad (they are mapped to the standard
 662    function keys), so we define our own.  */
 663 #define VK_NUMPAD_BEGIN         0x92
 664 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 665 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 666 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 667 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 668 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 669 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 670 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 671 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 672 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 673 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 674 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 675 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 676
 677 #ifndef VK_LWIN
 678 /* Older compiler environments don't have these defined.  */
 679 #define VK_LWIN                 0x5B
 680 #define VK_RWIN                 0x5C
 681 #define VK_APPS                 0x5D
 682 #endif
 683
 684 /* Support for treating Windows and Apps keys as modifiers.  These
 685    constants must not overlap with any of the dwControlKeyState flags in
 686    KEY_EVENT_RECORD.  */
 687 #define LEFT_WIN_PRESSED       0x8000
 688 #define RIGHT_WIN_PRESSED      0x4000
 689 #define APPS_PRESSED           0x2000
 690
 691 /* The current ANSI input codepage for GUI sessions.  */
 692 extern int w32_keyboard_codepage;
 693
 694 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 695    (even though they are supported on 98 and ME.  */
 696 #ifndef WM_MOUSELEAVE
 697 #define WM_MOUSELEAVE 0x02A3
 698 #define TME_LEAVE 0x00000002;
 699
 700 typedef struct tagTRACKMOUSEEVENT
 701 {
 702   DWORD cbSize;
 703   DWORD dwFlags;
 704   HWND hwndTrack;
 705   DWORD dwHoverTime;
 706 } TRACKMOUSEEVENT;
 707 #endif
 708
 709 struct image;
 710 struct face;
 711
 712 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 713
 714 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 715 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 716     IN HMENU,
 717     IN UINT,
 718     IN UINT_PTR,
 719     IN LPCWSTR);
 720
 721 extern HWND w32_system_caret_hwnd;
 722 extern int w32_system_caret_height;
 723 extern int w32_system_caret_x;
 724 extern int w32_system_caret_y;
 725 extern struct window *w32_system_caret_window;
 726 extern int w32_system_caret_hdr_height;
 727 extern int w32_system_caret_mode_height;
 728
 729 #ifdef _MSC_VER
 730 #ifndef EnumSystemLocales
 731 /* MSVC headers define these only for _WIN32_WINNT >= 0x0500.  */
 732 typedef BOOL (CALLBACK *LOCALE_ENUMPROCA)(LPSTR);
 733 typedef BOOL (CALLBACK *LOCALE_ENUMPROCW)(LPWSTR);
 734 BOOL WINAPI EnumSystemLocalesA(LOCALE_ENUMPROCA,DWORD);
 735 BOOL WINAPI EnumSystemLocalesW(LOCALE_ENUMPROCW,DWORD);
 736 #ifdef UNICODE
 737 #define EnumSystemLocales EnumSystemLocalesW
 738 #else
 739 #define EnumSystemLocales EnumSystemLocalesA
 740 #endif
 741 #endif
 742 #endif
 743
 744 #if EMACSDEBUG
 745 extern const char*
 746 w32_name_of_message (UINT msg);
 747 #endif /* EMACSDEBUG */
 748
 749 #ifdef NTGUI_UNICODE
 750 extern Lisp_Object ntgui_encode_system (Lisp_Object str);
 751 #define GUISTR(x) (L ## x)
 752 #define GUI_ENCODE_FILE GUI_ENCODE_SYSTEM
 753 #define GUI_ENCODE_SYSTEM(x) ntgui_encode_system (x)
 754 #define GUI_FN(fn) fn ## W
 755 typedef wchar_t guichar_t;
 756 #else /* !NTGUI_UNICODE */
 757 #define GUISTR(x) x
 758 #define GUI_ENCODE_FILE ENCODE_FILE
 759 #define GUI_ENCODE_SYSTEM ENCODE_SYSTEM
 760 #define GUI_FN(fn) fn
 761 typedef char guichar_t;
 762 #endif /* NTGUI_UNICODE */
 763
 764 #define GUI_SDATA(x) ((guichar_t*) SDATA (x))
 765
 766 extern void syms_of_w32term (void);
 767 extern void syms_of_w32menu (void);
 768 extern void syms_of_w32fns (void);
 769
 770 extern void globals_of_w32menu (void);
 771 extern void globals_of_w32fns (void);
 772 extern void globals_of_w32notify (void);
 773
 774 #ifdef CYGWIN
 775 extern int w32_message_fd;
 776 #endif /* CYGWIN */