src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft W32 API.
   2    Copyright (C) 1995, 2001 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 2, or (at your option)
   9 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; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19 Boston, MA 02110-1301, USA.  */
  20
  21 /* Added by Kevin Gallo */
  22
  23 #include "w32gui.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)       \
  30   ((f)->bdf ? (f)->bdf->width : (f)->tm.tmAveCharWidth)
  31 #define FONT_HEIGHT(f)      \
  32    ((f)->bdf ? (f)->bdf->height : (f)->tm.tmHeight)
  33 #define FONT_BASE(f)        \
  34   ((f)->bdf ? (f)->bdf->ury : (f)->tm.tmAscent)
  35 #define FONT_DESCENT(f)     \
  36   ((f)->bdf ? -((f)->bdf->lly) : (f)->tm.tmDescent)
  37 #define FONT_MAX_WIDTH(f)   \
  38   ((f)->bdf ? (f)->bdf->width : (f)->tm.tmMaxCharWidth)
  39
  40 #define CP_DEFAULT 1004
  41 /* Special pseudo-codepages. */
  42 #define CP_8BIT      -1
  43 #define CP_UNICODE   -2
  44 #define CP_UNKNOWN   -3
  45
  46 #define CHECK_W32_FRAME(f, frame)               \
  47   if (NILP (frame))                             \
  48     f = SELECTED_FRAME ();                      \
  49   else                                          \
  50     {                                           \
  51       CHECK_LIVE_FRAME (frame, 0);              \
  52       f = XFRAME (frame);                       \
  53     }                                           \
  54   if (! FRAME_W32_P (f))
  55
  56 /* Indicates whether we are in the readsocket call and the message we
  57    are processing in the current loop */
  58
  59 extern MSG CurMsg;
  60 extern BOOL bUseDflt;
  61
  62 extern struct frame *x_window_to_frame ();
  63
  64 /* Structure recording bitmaps and reference count.
  65    If REFCOUNT is 0 then this record is free to be reused.  */
  66
  67 struct w32_bitmap_record
  68 {
  69   Pixmap pixmap;
  70   char *file;
  71   HINSTANCE hinst; /* Used to load the file */
  72   int refcount;
  73   /* Record some info about this pixmap.  */
  74   int height, width, depth;
  75 };
  76
  77 /* Palette book-keeping stuff for mapping requested colors into the
  78    system palette.  Keep a ref-counted list of requested colors and
  79    regenerate the app palette whenever the requested list changes. */
  80
  81 extern Lisp_Object Vw32_enable_palette;
  82
  83 struct w32_palette_entry {
  84   struct w32_palette_entry * next;
  85   PALETTEENTRY entry;
  86 #if 0
  87   unsigned refcount;
  88 #endif
  89 };
  90
  91 extern void w32_regenerate_palette(struct frame *f);
  92
  93 \f
  94 /* For each display (currently only one on w32), we have a structure that
  95    records information about it.  */
  96
  97 struct w32_display_info
  98 {
  99   /* Chain of all w32_display_info structures.  */
 100   struct w32_display_info *next;
 101
 102   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 103      The same cons cell also appears in x_display_name_list.  */
 104   Lisp_Object name_list_element;
 105
 106   /* Number of frames that are on this display.  */
 107   int reference_count;
 108
 109   /* Dots per inch of the screen.  */
 110   double resx, resy;
 111
 112   /* Number of planes on this screen.  */
 113   int n_planes;
 114
 115   /* Number of bits per pixel on this screen.  */
 116   int n_cbits;
 117
 118   /* Dimensions of this screen.  */
 119   int height, width;
 120   int height_in,width_in;
 121
 122   /* Mask of things that cause the mouse to be grabbed.  */
 123   int grabbed;
 124
 125   /* Emacs bitmap-id of the default icon bitmap for this frame.
 126      Or -1 if none has been allocated yet.  */
 127   int icon_bitmap_id;
 128
 129   /* The root window of this screen.  */
 130   Window root_window;
 131
 132   /* The cursor to use for vertical scroll bars.  */
 133   Cursor vertical_scroll_bar_cursor;
 134
 135   /* Resource data base */
 136   XrmDatabase xrdb;
 137
 138   /* color palette information.  */
 139   int has_palette;
 140   struct w32_palette_entry * color_list;
 141   unsigned num_colors;
 142   HPALETTE palette;
 143
 144   /* deferred action flags checked when starting frame update.  */
 145   int regen_palette;
 146
 147   /* Keystroke that has been faked by Emacs and will be ignored when
 148      received; value is reset after key is received.  */
 149   int faked_key;
 150
 151   /* A table of all the fonts we have already loaded.  */
 152   struct font_info *font_table;
 153
 154   /* The current capacity of font_table.  */
 155   int font_table_size;
 156
 157   /* Minimum width over all characters in all fonts in font_table.  */
 158   int smallest_char_width;
 159
 160   /* Minimum font height over all fonts in font_table.  */
 161   int smallest_font_height;
 162
 163   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 164   XGCValues *scratch_cursor_gc;
 165
 166   /* These variables describe the range of text currently shown in its
 167      mouse-face, together with the window they apply to. As long as
 168      the mouse stays within this range, we need not redraw anything on
 169      its account.  Rows and columns are glyph matrix positions in
 170      MOUSE_FACE_WINDOW.  */
 171   int mouse_face_beg_row, mouse_face_beg_col;
 172   int mouse_face_beg_x, mouse_face_beg_y;
 173   int mouse_face_end_row, mouse_face_end_col;
 174   int mouse_face_end_x, mouse_face_end_y;
 175   int mouse_face_past_end;
 176   Lisp_Object mouse_face_window;
 177   int mouse_face_face_id;
 178   Lisp_Object mouse_face_overlay;
 179
 180   /* 1 if a mouse motion event came and we didn't handle it right away because
 181      gc was in progress.  */
 182   int mouse_face_deferred_gc;
 183
 184   /* FRAME and X, Y position of mouse when last checked for
 185      highlighting.  X and Y can be negative or out of range for the frame.  */
 186   struct frame *mouse_face_mouse_frame;
 187   int mouse_face_mouse_x, mouse_face_mouse_y;
 188
 189   /* Nonzero means defer mouse-motion highlighting.  */
 190   int mouse_face_defer;
 191
 192   /* Nonzero means that the mouse highlight should not be shown.  */
 193   int mouse_face_hidden;
 194
 195   int mouse_face_image_state;
 196
 197   char *w32_id_name;
 198
 199   /* The number of fonts actually stored in w32_font_table.
 200      font_table[n] is used and valid iff 0 <= n < n_fonts. 0 <=
 201      n_fonts <= font_table_size. and font_table[i].name != 0. */
 202   int n_fonts;
 203
 204   /* Pointer to bitmap records.  */
 205   struct w32_bitmap_record *bitmaps;
 206
 207   /* Allocated size of bitmaps field.  */
 208   int bitmaps_size;
 209
 210   /* Last used bitmap index.  */
 211   int bitmaps_last;
 212
 213   /* The frame (if any) which has the window that has keyboard focus.
 214      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 215      that a mere EnterNotify event can set this; if you need to know the
 216      last frame specified in a FocusIn or FocusOut event, use
 217      w32_focus_event_frame.  */
 218   struct frame *w32_focus_frame;
 219
 220   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 221      separate from w32_focus_frame, because whether or not LeaveNotify
 222      events cause us to lose focus depends on whether or not we have
 223      received a FocusIn event for it.  */
 224   struct frame *w32_focus_event_frame;
 225
 226   /* The frame which currently has the visual highlight, and should get
 227      keyboard input (other sorts of input have the frame encoded in the
 228      event).  It points to the focus frame's selected window's
 229      frame.  It differs from w32_focus_frame when we're using a global
 230      minibuffer.  */
 231   struct frame *x_highlight_frame;
 232
 233   /* Cache of images.  */
 234   struct image_cache *image_cache;
 235 };
 236
 237 /* This is a chain of structures for all the displays currently in use.  */
 238 extern struct w32_display_info *x_display_list;
 239 extern struct w32_display_info one_w32_display_info;
 240
 241 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 242    one for each element of w32_display_list and in the same order.
 243    NAME is the name of the frame.
 244    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 245 extern Lisp_Object w32_display_name_list;
 246
 247 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 248 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 249
 250 /* A flag to control how to display unibyte 8-bit character.  */
 251 extern int unibyte_display_via_language_environment;
 252
 253 struct w32_display_info *x_display_info_for_name ();
 254
 255 Lisp_Object display_x_get_resource P_ ((struct w32_display_info *,
 256                                         Lisp_Object, Lisp_Object,
 257                                         Lisp_Object, Lisp_Object));
 258
 259 extern struct w32_display_info *w32_term_init ();
 260 \f
 261 extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int));
 262 extern struct font_info *w32_get_font_info (), *w32_query_font ();
 263 extern void w32_cache_char_metrics (XFontStruct *font);
 264 extern void w32_find_ccl_program();
 265 \f
 266 #define PIX_TYPE COLORREF
 267
 268 /* Each W32 frame object points to its own struct w32_display object
 269    in the output_data.w32 field.  The w32_display structure contains all
 270    the information that is specific to W32 windows.  */
 271
 272 /* Put some things in x_output for compatibility.
 273    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 274    diffs between X and w32 code.  */
 275 struct x_output
 276 {
 277   PIX_TYPE background_pixel;
 278   PIX_TYPE foreground_pixel;
 279
 280   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 281      frame, or IMPLICIT if we received an EnterNotify.
 282      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 283   int focus_state;
 284
 285 };
 286
 287 enum
 288 {
 289   /* Values for focus_state, used as bit mask.
 290      EXPLICIT means we received a FocusIn for the frame and know it has
 291      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 292      may have the focus if no window manager is running.
 293      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 294   FOCUS_NONE     = 0,
 295   FOCUS_IMPLICIT = 1,
 296   FOCUS_EXPLICIT = 2
 297 };
 298
 299 struct w32_output
 300 {
 301   /* Placeholder for things accessed through output_data.x.  */
 302   struct x_output x_compatible;
 303
 304   /* Menubar "widget" handle.  */
 305   HMENU menubar_widget;
 306
 307   /* Original palette (used to deselect real palette after drawing) */
 308   HPALETTE old_palette;
 309
 310   /* Here are the Graphics Contexts for the default font.  */
 311   XGCValues *cursor_gc;                         /* cursor drawing */
 312
 313   /* The window used for this frame.
 314      May be zero while the frame object is being created
 315      and the window has not yet been created.  */
 316   Window window_desc;
 317
 318   /* The window that is the parent of this window.
 319      Usually this is a window that was made by the window manager,
 320      but it can be the root window, and it can be explicitly specified
 321      (see the explicit_parent field, below).  */
 322   Window parent_desc;
 323
 324   /* Default ASCII font of this frame. */
 325   XFontStruct *font;
 326
 327   /* The baseline offset of the default ASCII font.  */
 328   int baseline_offset;
 329
 330   /* If a fontset is specified for this frame instead of font, this
 331      value contains an ID of the fontset, else -1.  */
 332   int fontset;
 333
 334   /* Pixel values used for various purposes.
 335      border_pixel may be -1 meaning use a gray tile.  */
 336   COLORREF cursor_pixel;
 337   COLORREF border_pixel;
 338   COLORREF mouse_pixel;
 339   COLORREF cursor_foreground_pixel;
 340
 341   /* Foreground color for scroll bars.  A value of -1 means use the
 342      default (black for non-toolkit scroll bars).  */
 343   COLORREF scroll_bar_foreground_pixel;
 344
 345   /* Background color for scroll bars.  A value of -1 means use the
 346      default (background color of the frame for non-toolkit scroll
 347      bars).  */
 348   COLORREF scroll_bar_background_pixel;
 349
 350   /* Descriptor for the cursor in use for this window.  */
 351   Cursor text_cursor;
 352   Cursor nontext_cursor;
 353   Cursor modeline_cursor;
 354   Cursor hand_cursor;
 355   Cursor hourglass_cursor;
 356   Cursor horizontal_drag_cursor;
 357
 358   /* Window whose cursor is hourglass_cursor.  This window is
 359      temporarily mapped to display an hourglass cursor.  */
 360   Window hourglass_window;
 361
 362   /* Non-zero means hourglass cursor is currently displayed.  */
 363   unsigned hourglass_p : 1;
 364
 365   /* Flag to set when the window needs to be completely repainted.  */
 366   int needs_exposure;
 367
 368   DWORD dwStyle;
 369
 370   /* This is the Emacs structure for the display this frame is on.  */
 371   /* struct w32_display_info *display_info; */
 372
 373   /* Nonzero means our parent is another application's window
 374      and was explicitly specified.  */
 375   char explicit_parent;
 376
 377   /* Nonzero means tried already to make this frame visible.  */
 378   char asked_for_visible;
 379
 380   /* Nonzero means menubar is currently active.  */
 381   char menubar_active;
 382
 383   /* Nonzero means a menu command is being processed.  */
 384   char menu_command_in_progress;
 385
 386   /* Nonzero means menubar is about to become active, but should be
 387      brought up to date first.  */
 388   volatile char pending_menu_activation;
 389
 390   /* Relief GCs, colors etc.  */
 391   struct relief
 392   {
 393     XGCValues *gc;
 394     unsigned long pixel;
 395     int allocated_p;
 396   }
 397   black_relief, white_relief;
 398
 399   /* The background for which the above relief GCs were set up.
 400      They are changed only when a different background is involved.  */
 401   unsigned long relief_background;
 402 };
 403
 404 extern struct w32_output w32term_display;
 405
 406 /* Return the X output data for frame F.  */
 407 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 408
 409 /* Return the window associated with the frame F.  */
 410 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 411 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 412
 413 #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel)
 414 #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel)
 415 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 416 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 417 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 418
 419 /* This gives the w32_display_info structure for the display F is on.  */
 420 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 421 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 422
 423 /* This is the `Display *' which frame F is on.  */
 424 #define FRAME_X_DISPLAY(f) (0)
 425
 426 /* This is the 'font_info *' which frame F has.  */
 427 #define FRAME_W32_FONT_TABLE(f) (FRAME_W32_DISPLAY_INFO (f)->font_table)
 428
 429 /* Value is the smallest width of any character in any font on frame F.  */
 430
 431 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 432      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 433
 434 /* Value is the smallest height of any font on frame F.  */
 435
 436 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 437      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 438
 439 /* Return a pointer to the image cache of frame F.  */
 440
 441 #define FRAME_X_IMAGE_CACHE(F) FRAME_W32_DISPLAY_INFO ((F))->image_cache
 442
 443 \f
 444 /* W32-specific scroll bar stuff.  */
 445
 446 /* We represent scroll bars as lisp vectors.  This allows us to place
 447    references to them in windows without worrying about whether we'll
 448    end up with windows referring to dead scroll bars; the garbage
 449    collector will free it when its time comes.
 450
 451    We use struct scroll_bar as a template for accessing fields of the
 452    vector.  */
 453
 454 struct scroll_bar {
 455
 456   /* These fields are shared by all vectors.  */
 457   EMACS_INT size_from_Lisp_Vector_struct;
 458   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 459
 460   /* The window we're a scroll bar for.  */
 461   Lisp_Object window;
 462
 463   /* The next and previous in the chain of scroll bars in this frame.  */
 464   Lisp_Object next, prev;
 465
 466   /* The window representing this scroll bar.  Since this is a full
 467      32-bit quantity, we store it split into two 32-bit values.  */
 468   Lisp_Object w32_window_low, w32_window_high;
 469
 470   /* Same as above for the widget.  */
 471   Lisp_Object w32_widget_low, w32_widget_high;
 472
 473   /* The position and size of the scroll bar in pixels, relative to the
 474      frame.  */
 475   Lisp_Object top, left, width, height;
 476
 477   /* The starting and ending positions of the handle, relative to the
 478      handle area (i.e. zero is the top position, not
 479      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 480      hasn't been drawn yet.
 481
 482      These are not actually the locations where the beginning and end
 483      are drawn; in order to keep handles from becoming invisible when
 484      editing large files, we establish a minimum height by always
 485      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 486      where they would be normally; the bottom and top are in a
 487      different co-ordinate system.  */
 488   Lisp_Object start, end;
 489
 490   /* If the scroll bar handle is currently being dragged by the user,
 491      this is the number of pixels from the top of the handle to the
 492      place where the user grabbed it.  If the handle isn't currently
 493      being dragged, this is Qnil.  */
 494   Lisp_Object dragging;
 495 };
 496
 497 /* The number of elements a vector holding a struct scroll_bar needs.  */
 498 #define SCROLL_BAR_VEC_SIZE                                     \
 499   ((sizeof (struct scroll_bar)                                  \
 500     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 501    / sizeof (Lisp_Object))
 502
 503 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 504 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 505
 506
 507 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 508 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 509
 510 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 511 #define SCROLL_BAR_UNPACK(low, high, int32) \
 512   (XSETINT ((low),   (int32)        & 0xffff), \
 513    XSETINT ((high), ((int32) >> 16) & 0xffff))
 514
 515
 516 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 517 #define SCROLL_BAR_W32_WINDOW(ptr) \
 518   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 519
 520 /* Store a window id in a struct scroll_bar.  */
 521 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 522   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 523
 524 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 525 #define SCROLL_BAR_X_WIDGET(ptr) \
 526   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 527
 528 /* Store a widget id in a struct scroll_bar.  */
 529 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 530   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 531
 532 /* Return the inside width of a vertical scroll bar, given the outside
 533    width.  */
 534 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 535   ((width) \
 536    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 537    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 538    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 539
 540 /* Return the length of the rectangle within which the top of the
 541    handle must stay.  This isn't equivalent to the inside height,
 542    because the scroll bar handle has a minimum height.
 543
 544    This is the real range of motion for the scroll bar, so when we're
 545    scaling buffer positions to scroll bar positions, we use this, not
 546    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 547 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 548   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 549
 550 /* Return the inside height of vertical scroll bar, given the outside
 551    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 552 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 553   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 554
 555
 556 /* Border widths for scroll bars.
 557
 558    Scroll bar windows don't have any borders; their border width is
 559    set to zero, and we redraw borders ourselves.  This makes the code
 560    a bit cleaner, since we don't have to convert between outside width
 561    (used when relating to the rest of the screen) and inside width
 562    (used when sizing and drawing the scroll bar window itself).
 563
 564    The handle moves up and down/back and forth in a rectangle inset
 565    from the edges of the scroll bar.  These are widths by which we
 566    inset the handle boundaries from the scroll bar edges.  */
 567 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 568 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 569 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 570 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 571
 572 /* Minimum lengths for scroll bar handles, in pixels.  */
 573 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 574
 575 /* Trimming off a few pixels from each side prevents
 576    text from glomming up against the scroll bar */
 577 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 578
 579 \f
 580 extern void w32_fill_rect ();
 581 extern void w32_clear_window ();
 582
 583 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 584 { \
 585     RECT rect; \
 586     rect.left = x; \
 587     rect.top = y; \
 588     rect.right = x + nx; \
 589     rect.bottom = y + ny; \
 590     w32_fill_rect (f,hdc,pix,&rect); \
 591 }
 592
 593 #define w32_clear_rect(f,hdc,lprect) \
 594 w32_fill_rect (f,hdc,f->output_data.x->background_pixel,lprect)
 595
 596 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 597 w32_fill_area (f,hdc,f->output_data.x->background_pixel,px,py,nx,ny)
 598
 599 extern struct font_info *w32_load_font ();
 600 extern void w32_unload_font ();
 601
 602 /* Define for earlier versions of Visual C */
 603 #ifndef WM_MOUSEWHEEL
 604 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 605 #endif /* WM_MOUSEWHEEL */
 606 #ifndef MSH_MOUSEWHEEL
 607 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 608 #endif /* MSH_MOUSEWHEEL */
 609 #ifndef WM_XBUTTONDOWN
 610 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 611 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 612 #endif /* WM_XBUTTONDOWN */
 613
 614 #define WM_EMACS_START                 (WM_USER + 1)
 615 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 616 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 617 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 618 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 619 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 620 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 621 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 622 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 623 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 624 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 625 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 626 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 627 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 628 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 629 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 630 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 631 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 632 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 633 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 634 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 635 #define WM_EMACS_END                   (WM_EMACS_START + 20)
 636
 637 #define WND_FONTWIDTH_INDEX    (0)
 638 #define WND_LINEHEIGHT_INDEX   (4)
 639 #define WND_BORDER_INDEX       (8)
 640 #define WND_SCROLLBAR_INDEX    (12)
 641 #define WND_BACKGROUND_INDEX   (16)
 642 #define WND_LAST_INDEX         (20)
 643
 644 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 645
 646 extern DWORD dwWindowsThreadId;
 647 extern HANDLE hWindowsThread;
 648 extern DWORD dwMainThreadId;
 649 extern HANDLE hMainThread;
 650
 651 typedef struct W32Msg {
 652     MSG msg;
 653     DWORD dwModifiers;
 654     RECT rect;
 655 } W32Msg;
 656
 657 /* Structure for recording message when input thread must return a
 658    result that depends on lisp thread to compute.  Lisp thread can
 659    complete deferred messages out of order.  */
 660 typedef struct deferred_msg
 661 {
 662   struct deferred_msg * next;
 663   W32Msg                w32msg;
 664   LRESULT               result;
 665   int                   completed;
 666 } deferred_msg;
 667
 668 extern CRITICAL_SECTION critsect;
 669
 670 extern void init_crit ();
 671 extern void delete_crit ();
 672
 673 extern void signal_quit ();
 674
 675 #define enter_crit() EnterCriticalSection (&critsect)
 676 #define leave_crit() LeaveCriticalSection (&critsect)
 677
 678 extern void select_palette (struct frame * f, HDC hdc);
 679 extern void deselect_palette (struct frame * f, HDC hdc);
 680 extern HDC get_frame_dc (struct frame * f);
 681 extern int release_frame_dc (struct frame * f, HDC hDC);
 682
 683 extern void drain_message_queue ();
 684
 685 extern BOOL get_next_msg ();
 686 extern BOOL post_msg ();
 687 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 688 extern void wait_for_sync ();
 689
 690 extern BOOL parse_button ();
 691
 692 /* Keypad command key support.  W32 doesn't have virtual keys defined
 693    for the function keys on the keypad (they are mapped to the standard
 694    fuction keys), so we define our own.  */
 695 #define VK_NUMPAD_BEGIN         0x92
 696 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 697 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 698 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 699 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 700 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 701 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 702 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 703 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 704 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 705 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 706 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 707 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 708
 709 #ifndef VK_LWIN
 710 /* Older compiler environments don't have these defined.  */
 711 #define VK_LWIN                 0x5B
 712 #define VK_RWIN                 0x5C
 713 #define VK_APPS                 0x5D
 714 #endif
 715
 716 /* Support for treating Windows and Apps keys as modifiers.  These
 717    constants must not overlap with any of the dwControlKeyState flags in
 718    KEY_EVENT_RECORD.  */
 719 #define LEFT_WIN_PRESSED       0x8000
 720 #define RIGHT_WIN_PRESSED      0x4000
 721 #define APPS_PRESSED           0x2000
 722
 723 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 724    (even though they are supported on 98 and ME.  */
 725 #ifndef WM_MOUSELEAVE
 726 #define WM_MOUSELEAVE 0x02A3
 727 #define TME_LEAVE 0x00000002;
 728
 729 typedef struct tagTRACKMOUSEEVENT
 730 {
 731   DWORD cbSize;
 732   DWORD dwFlags;
 733   HWND hwndTrack;
 734   DWORD dwHoverTime;
 735 } TRACKMOUSEEVENT;
 736 #endif
 737
 738 struct image;
 739 struct face;
 740
 741 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 742 struct frame * check_x_frame (Lisp_Object);
 743 Lisp_Object vga_stdcolor_name (int);
 744
 745 EXFUN (Fx_display_color_p, 1);
 746 EXFUN (Fx_display_grayscale_p, 1);
 747
 748 #define FONT_TYPE_FOR_UNIBYTE(font, ch)                 \
 749   ((font)->bdf ? BDF_1D_FONT : ANSI_FONT)
 750
 751 #define FONT_TYPE_FOR_MULTIBYTE(font, ch)               \
 752   (!(font)->bdf                                         \
 753    ? UNICODE_FONT                                       \
 754    : ((CHARSET_DIMENSION (CHAR_CHARSET ((ch))) == 1)    \
 755       ? BDF_1D_FONT : BDF_2D_FONT))
 756
 757 typedef DWORD (WINAPI * ClipboardSequence_Proc) ();
 758 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 759     IN HMENU,
 760     IN UINT,
 761     IN UINT_PTR,
 762     IN LPCWSTR);
 763
 764 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 765    (do not change this comment) */