1/* Definitions and headers for communication on the Microsoft W32 API.
2   Copyright (C) 1995, 2001, 2002, 2003, 2004,
3                 2005, 2006, 2007 Free Software Foundation, Inc.
4
5This file is part of GNU Emacs.
6
7GNU Emacs is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU Emacs is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU Emacs; see the file COPYING.  If not, write to
19the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20Boston, MA 02110-1301, USA.  */
21
22/* Added by Kevin Gallo */
23
24#include "w32gui.h"
25
26
27#define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
28#define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
29
30#define FONT_WIDTH(f)       \
31  ((f)->bdf ? (f)->bdf->width : (f)->tm.tmAveCharWidth)
32#define FONT_HEIGHT(f)      \
33   ((f)->bdf ? (f)->bdf->height : (f)->tm.tmHeight)
34#define FONT_BASE(f)        \
35  ((f)->bdf ? (f)->bdf->ury : (f)->tm.tmAscent)
36#define FONT_DESCENT(f)     \
37  ((f)->bdf ? -((f)->bdf->lly) : (f)->tm.tmDescent)
38#define FONT_MAX_WIDTH(f)   \
39  ((f)->bdf ? (f)->bdf->width : (f)->tm.tmMaxCharWidth)
40
41#define CP_DEFAULT 1004
42/* Special pseudo-codepages. */
43#define CP_8BIT      -1
44#define CP_UNICODE   -2
45#define CP_UNKNOWN   -3
46
47#define CHECK_W32_FRAME(f, frame)		\
48  if (NILP (frame))				\
49    f = SELECTED_FRAME ();			\
50  else						\
51    {						\
52      CHECK_LIVE_FRAME (frame, 0);		\
53      f = XFRAME (frame);			\
54    }						\
55  if (! FRAME_W32_P (f))
56
57/* Indicates whether we are in the readsocket call and the message we
58   are processing in the current loop */
59
60extern MSG CurMsg;
61extern BOOL bUseDflt;
62
63extern struct frame *x_window_to_frame ();
64
65/* Structure recording bitmaps and reference count.
66   If REFCOUNT is 0 then this record is free to be reused.  */
67
68struct w32_bitmap_record
69{
70  Pixmap pixmap;
71  char *file;
72  HINSTANCE hinst; /* Used to load the file */
73  int refcount;
74  /* Record some info about this pixmap.  */
75  int height, width, depth;
76};
77
78/* Palette book-keeping stuff for mapping requested colors into the
79   system palette.  Keep a ref-counted list of requested colors and
80   regenerate the app palette whenever the requested list changes. */
81
82extern Lisp_Object Vw32_enable_palette;
83
84struct w32_palette_entry {
85  struct w32_palette_entry * next;
86  PALETTEENTRY entry;
87#if 0
88  unsigned refcount;
89#endif
90};
91
92extern void w32_regenerate_palette(struct frame *f);
93
94
95/* For each display (currently only one on w32), we have a structure that
96   records information about it.  */
97
98struct w32_display_info
99{
100  /* Chain of all w32_display_info structures.  */
101  struct w32_display_info *next;
102
103  /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
104     The same cons cell also appears in x_display_name_list.  */
105  Lisp_Object name_list_element;
106
107  /* Number of frames that are on this display.  */
108  int reference_count;
109
110  /* Dots per inch of the screen.  */
111  double resx, resy;
112
113  /* Number of planes on this screen.  */
114  int n_planes;
115
116  /* Number of bits per pixel on this screen.  */
117  int n_cbits;
118
119  /* Dimensions of this screen.  */
120  int height, width;
121  int height_in,width_in;
122
123  /* Mask of things that cause the mouse to be grabbed.  */
124  int grabbed;
125
126  /* Emacs bitmap-id of the default icon bitmap for this frame.
127     Or -1 if none has been allocated yet.  */
128  int icon_bitmap_id;
129
130  /* The root window of this screen.  */
131  Window root_window;
132
133  /* The cursor to use for vertical scroll bars.  */
134  Cursor vertical_scroll_bar_cursor;
135
136  /* Resource data base */
137  XrmDatabase xrdb;
138
139  /* color palette information.  */
140  int has_palette;
141  struct w32_palette_entry * color_list;
142  unsigned num_colors;
143  HPALETTE palette;
144
145  /* deferred action flags checked when starting frame update.  */
146  int regen_palette;
147
148  /* Keystroke that has been faked by Emacs and will be ignored when
149     received; value is reset after key is received.  */
150  int faked_key;
151
152  /* A table of all the fonts we have already loaded.  */
153  struct font_info *font_table;
154
155  /* The current capacity of font_table.  */
156  int font_table_size;
157
158  /* Minimum width over all characters in all fonts in font_table.  */
159  int smallest_char_width;
160
161  /* Minimum font height over all fonts in font_table.  */
162  int smallest_font_height;
163
164  /* Reusable Graphics Context for drawing a cursor in a non-default face. */
165  XGCValues *scratch_cursor_gc;
166
167  /* These variables describe the range of text currently shown in its
168     mouse-face, together with the window they apply to. As long as
169     the mouse stays within this range, we need not redraw anything on
170     its account.  Rows and columns are glyph matrix positions in
171     MOUSE_FACE_WINDOW.  */
172  int mouse_face_beg_row, mouse_face_beg_col;
173  int mouse_face_beg_x, mouse_face_beg_y;
174  int mouse_face_end_row, mouse_face_end_col;
175  int mouse_face_end_x, mouse_face_end_y;
176  int mouse_face_past_end;
177  Lisp_Object mouse_face_window;
178  int mouse_face_face_id;
179  Lisp_Object mouse_face_overlay;
180
181  /* 1 if a mouse motion event came and we didn't handle it right away because
182     gc was in progress.  */
183  int mouse_face_deferred_gc;
184
185  /* FRAME and X, Y position of mouse when last checked for
186     highlighting.  X and Y can be negative or out of range for the frame.  */
187  struct frame *mouse_face_mouse_frame;
188  int mouse_face_mouse_x, mouse_face_mouse_y;
189
190  /* Nonzero means defer mouse-motion highlighting.  */
191  int mouse_face_defer;
192
193  /* Nonzero means that the mouse highlight should not be shown.  */
194  int mouse_face_hidden;
195
196  int mouse_face_image_state;
197
198  char *w32_id_name;
199
200  /* The number of fonts actually stored in w32_font_table.
201     font_table[n] is used and valid iff 0 <= n < n_fonts. 0 <=
202     n_fonts <= font_table_size. and font_table[i].name != 0. */
203  int n_fonts;
204
205  /* Pointer to bitmap records.  */
206  struct w32_bitmap_record *bitmaps;
207
208  /* Allocated size of bitmaps field.  */
209  int bitmaps_size;
210
211  /* Last used bitmap index.  */
212  int bitmaps_last;
213
214  /* The frame (if any) which has the window that has keyboard focus.
215     Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
216     that a mere EnterNotify event can set this; if you need to know the
217     last frame specified in a FocusIn or FocusOut event, use
218     w32_focus_event_frame.  */
219  struct frame *w32_focus_frame;
220
221  /* The last frame mentioned in a FocusIn or FocusOut event.  This is
222     separate from w32_focus_frame, because whether or not LeaveNotify
223     events cause us to lose focus depends on whether or not we have
224     received a FocusIn event for it.  */
225  struct frame *w32_focus_event_frame;
226
227  /* The frame which currently has the visual highlight, and should get
228     keyboard input (other sorts of input have the frame encoded in the
229     event).  It points to the focus frame's selected window's
230     frame.  It differs from w32_focus_frame when we're using a global
231     minibuffer.  */
232  struct frame *x_highlight_frame;
233
234  /* Cache of images.  */
235  struct image_cache *image_cache;
236};
237
238/* This is a chain of structures for all the displays currently in use.  */
239extern struct w32_display_info *x_display_list;
240extern struct w32_display_info one_w32_display_info;
241
242/* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
243   one for each element of w32_display_list and in the same order.
244   NAME is the name of the frame.
245   FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
246extern Lisp_Object w32_display_name_list;
247
248/* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
249extern Lisp_Object Vx_pixel_size_width_font_regexp;
250
251struct w32_display_info *x_display_info_for_name ();
252
253Lisp_Object display_x_get_resource P_ ((struct w32_display_info *,
254					Lisp_Object, Lisp_Object,
255					Lisp_Object, Lisp_Object));
256
257extern struct w32_display_info *w32_term_init ();
258
259extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int));
260extern struct font_info *w32_get_font_info (), *w32_query_font ();
261extern void w32_cache_char_metrics (XFontStruct *font);
262extern void w32_find_ccl_program();
263
264#define PIX_TYPE COLORREF
265
266/* Each W32 frame object points to its own struct w32_display object
267   in the output_data.w32 field.  The w32_display structure contains all
268   the information that is specific to W32 windows.  */
269
270/* Put some things in x_output for compatibility.
271   NTEMACS_TODO: Move all common things here to eliminate unneccesary
272   diffs between X and w32 code.  */
273struct x_output
274{
275  PIX_TYPE background_pixel;
276  PIX_TYPE foreground_pixel;
277
278  /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
279     frame, or IMPLICIT if we received an EnterNotify.
280     FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
281  int focus_state;
282
283};
284
285enum
286{
287  /* Values for focus_state, used as bit mask.
288     EXPLICIT means we received a FocusIn for the frame and know it has
289     the focus.  IMPLICIT means we recevied an EnterNotify and the frame
290     may have the focus if no window manager is running.
291     FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
292  FOCUS_NONE     = 0,
293  FOCUS_IMPLICIT = 1,
294  FOCUS_EXPLICIT = 2
295};
296
297struct w32_output
298{
299  /* Placeholder for things accessed through output_data.x.  */
300  struct x_output x_compatible;
301
302  /* Menubar "widget" handle.  */
303  HMENU menubar_widget;
304
305  /* Original palette (used to deselect real palette after drawing) */
306  HPALETTE old_palette;
307
308  /* Here are the Graphics Contexts for the default font.  */
309  XGCValues *cursor_gc;				/* cursor drawing */
310
311  /* The window used for this frame.
312     May be zero while the frame object is being created
313     and the window has not yet been created.  */
314  Window window_desc;
315
316  /* The window that is the parent of this window.
317     Usually this is a window that was made by the window manager,
318     but it can be the root window, and it can be explicitly specified
319     (see the explicit_parent field, below).  */
320  Window parent_desc;
321
322  /* Default ASCII font of this frame. */
323  XFontStruct *font;
324
325  /* The baseline offset of the default ASCII font.  */
326  int baseline_offset;
327
328  /* If a fontset is specified for this frame instead of font, this
329     value contains an ID of the fontset, else -1.  */
330  int fontset;
331
332  /* Pixel values used for various purposes.
333     border_pixel may be -1 meaning use a gray tile.  */
334  COLORREF cursor_pixel;
335  COLORREF border_pixel;
336  COLORREF mouse_pixel;
337  COLORREF cursor_foreground_pixel;
338
339  /* Foreground color for scroll bars.  A value of -1 means use the
340     default (black for non-toolkit scroll bars).  */
341  COLORREF scroll_bar_foreground_pixel;
342
343  /* Background color for scroll bars.  A value of -1 means use the
344     default (background color of the frame for non-toolkit scroll
345     bars).  */
346  COLORREF scroll_bar_background_pixel;
347
348  /* Descriptor for the cursor in use for this window.  */
349  Cursor text_cursor;
350  Cursor nontext_cursor;
351  Cursor modeline_cursor;
352  Cursor hand_cursor;
353  Cursor hourglass_cursor;
354  Cursor horizontal_drag_cursor;
355
356  /* Window whose cursor is hourglass_cursor.  This window is
357     temporarily mapped to display an hourglass cursor.  */
358  Window hourglass_window;
359
360  /* Non-zero means hourglass cursor is currently displayed.  */
361  unsigned hourglass_p : 1;
362
363  /* Flag to set when the window needs to be completely repainted.  */
364  int needs_exposure;
365
366  DWORD dwStyle;
367
368  /* This is the Emacs structure for the display this frame is on.  */
369  /* struct w32_display_info *display_info; */
370
371  /* Nonzero means our parent is another application's window
372     and was explicitly specified.  */
373  char explicit_parent;
374
375  /* Nonzero means tried already to make this frame visible.  */
376  char asked_for_visible;
377
378  /* Nonzero means menubar is currently active.  */
379  char menubar_active;
380
381  /* Nonzero means menubar is about to become active, but should be
382     brought up to date first.  */
383  volatile char pending_menu_activation;
384
385  /* Relief GCs, colors etc.  */
386  struct relief
387  {
388    XGCValues *gc;
389    unsigned long pixel;
390    int allocated_p;
391  }
392  black_relief, white_relief;
393
394  /* The background for which the above relief GCs were set up.
395     They are changed only when a different background is involved.  */
396  unsigned long relief_background;
397};
398
399extern struct w32_output w32term_display;
400
401/* Return the X output data for frame F.  */
402#define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
403
404/* Return the window associated with the frame F.  */
405#define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
406#define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
407
408#define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel)
409#define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel)
410#define FRAME_FONT(f) ((f)->output_data.w32->font)
411#define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
412#define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
413
414/* This gives the w32_display_info structure for the display F is on.  */
415#define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
416#define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
417
418/* This is the `Display *' which frame F is on.  */
419#define FRAME_X_DISPLAY(f) (0)
420
421/* This is the 'font_info *' which frame F has.  */
422#define FRAME_W32_FONT_TABLE(f) (FRAME_W32_DISPLAY_INFO (f)->font_table)
423
424/* Value is the smallest width of any character in any font on frame F.  */
425
426#define FRAME_SMALLEST_CHAR_WIDTH(F) \
427     FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
428
429/* Value is the smallest height of any font on frame F.  */
430
431#define FRAME_SMALLEST_FONT_HEIGHT(F) \
432     FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
433
434/* Return a pointer to the image cache of frame F.  */
435
436#define FRAME_X_IMAGE_CACHE(F) FRAME_W32_DISPLAY_INFO ((F))->image_cache
437
438
439/* W32-specific scroll bar stuff.  */
440
441/* We represent scroll bars as lisp vectors.  This allows us to place
442   references to them in windows without worrying about whether we'll
443   end up with windows referring to dead scroll bars; the garbage
444   collector will free it when its time comes.
445
446   We use struct scroll_bar as a template for accessing fields of the
447   vector.  */
448
449struct scroll_bar {
450
451  /* These fields are shared by all vectors.  */
452  EMACS_INT size_from_Lisp_Vector_struct;
453  struct Lisp_Vector *next_from_Lisp_Vector_struct;
454
455  /* The window we're a scroll bar for.  */
456  Lisp_Object window;
457
458  /* The next and previous in the chain of scroll bars in this frame.  */
459  Lisp_Object next, prev;
460
461  /* The window representing this scroll bar.  Since this is a full
462     32-bit quantity, we store it split into two 32-bit values.  */
463  Lisp_Object w32_window_low, w32_window_high;
464
465  /* Same as above for the widget.  */
466  Lisp_Object w32_widget_low, w32_widget_high;
467
468  /* The position and size of the scroll bar in pixels, relative to the
469     frame.  */
470  Lisp_Object top, left, width, height;
471
472  /* The starting and ending positions of the handle, relative to the
473     handle area (i.e. zero is the top position, not
474     SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
475     hasn't been drawn yet.
476
477     These are not actually the locations where the beginning and end
478     are drawn; in order to keep handles from becoming invisible when
479     editing large files, we establish a minimum height by always
480     drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
481     where they would be normally; the bottom and top are in a
482     different co-ordinate system.  */
483  Lisp_Object start, end;
484
485  /* If the scroll bar handle is currently being dragged by the user,
486     this is the number of pixels from the top of the handle to the
487     place where the user grabbed it.  If the handle isn't currently
488     being dragged, this is Qnil.  */
489  Lisp_Object dragging;
490};
491
492/* The number of elements a vector holding a struct scroll_bar needs.  */
493#define SCROLL_BAR_VEC_SIZE					\
494  ((sizeof (struct scroll_bar)					\
495    - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))	\
496   / sizeof (Lisp_Object))
497
498/* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
499#define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
500
501
502/* Building a 32-bit C integer from two 16-bit lisp integers.  */
503#define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
504
505/* Setting two lisp integers to the low and high words of a 32-bit C int.  */
506#define SCROLL_BAR_UNPACK(low, high, int32) \
507  (XSETINT ((low),   (int32)        & 0xffff), \
508   XSETINT ((high), ((int32) >> 16) & 0xffff))
509
510
511/* Extract the window id of the scroll bar from a struct scroll_bar.  */
512#define SCROLL_BAR_W32_WINDOW(ptr) \
513  ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
514
515/* Store a window id in a struct scroll_bar.  */
516#define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
517  (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
518
519/* Extract the X widget of the scroll bar from a struct scroll_bar.  */
520#define SCROLL_BAR_X_WIDGET(ptr) \
521  ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
522
523/* Store a widget id in a struct scroll_bar.  */
524#define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
525  (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
526
527/* Return the inside width of a vertical scroll bar, given the outside
528   width.  */
529#define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
530  ((width) \
531   - VERTICAL_SCROLL_BAR_LEFT_BORDER \
532   - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
533   - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
534
535/* Return the length of the rectangle within which the top of the
536   handle must stay.  This isn't equivalent to the inside height,
537   because the scroll bar handle has a minimum height.
538
539   This is the real range of motion for the scroll bar, so when we're
540   scaling buffer positions to scroll bar positions, we use this, not
541   VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
542#define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
543  (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
544
545/* Return the inside height of vertical scroll bar, given the outside
546   height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
547#define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
548  ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
549
550
551/* Border widths for scroll bars.
552
553   Scroll bar windows don't have any borders; their border width is
554   set to zero, and we redraw borders ourselves.  This makes the code
555   a bit cleaner, since we don't have to convert between outside width
556   (used when relating to the rest of the screen) and inside width
557   (used when sizing and drawing the scroll bar window itself).
558
559   The handle moves up and down/back and forth in a rectangle inset
560   from the edges of the scroll bar.  These are widths by which we
561   inset the handle boundaries from the scroll bar edges.  */
562#define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
563#define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
564#define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
565#define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
566
567/* Minimum lengths for scroll bar handles, in pixels.  */
568#define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
569
570/* Trimming off a few pixels from each side prevents
571   text from glomming up against the scroll bar */
572#define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
573
574
575extern void w32_fill_rect ();
576extern void w32_clear_window ();
577
578#define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
579{ \
580    RECT rect; \
581    rect.left = x; \
582    rect.top = y; \
583    rect.right = x + nx; \
584    rect.bottom = y + ny; \
585    w32_fill_rect (f,hdc,pix,&rect); \
586}
587
588#define w32_clear_rect(f,hdc,lprect) \
589w32_fill_rect (f,hdc,f->output_data.x->background_pixel,lprect)
590
591#define w32_clear_area(f,hdc,px,py,nx,ny) \
592w32_fill_area (f,hdc,f->output_data.x->background_pixel,px,py,nx,ny)
593
594extern struct font_info *w32_load_font ();
595extern void w32_unload_font ();
596
597/* Define for earlier versions of Visual C */
598#ifndef WM_MOUSEWHEEL
599#define WM_MOUSEWHEEL 		       (WM_MOUSELAST + 1)
600#endif /* WM_MOUSEWHEEL */
601#ifndef MSH_MOUSEWHEEL
602#define MSH_MOUSEWHEEL		       "MSWHEEL_ROLLMSG"
603#endif /* MSH_MOUSEWHEEL */
604#ifndef WM_XBUTTONDOWN
605#define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
606#define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
607#endif /* WM_XBUTTONDOWN */
608
609#define WM_EMACS_START                 (WM_USER + 1)
610#define WM_EMACS_KILL                  (WM_EMACS_START + 0)
611#define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
612#define WM_EMACS_DONE                  (WM_EMACS_START + 2)
613#define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
614#define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
615#define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
616#define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
617#define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
618#define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
619#define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
620#define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
621#define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
622#define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
623#define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
624#define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
625#define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
626#define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
627#define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
628#define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
629#define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
630#define WM_EMACS_END                   (WM_EMACS_START + 20)
631
632#define WND_FONTWIDTH_INDEX    (0)
633#define WND_LINEHEIGHT_INDEX   (4)
634#define WND_BORDER_INDEX       (8)
635#define WND_SCROLLBAR_INDEX    (12)
636#define WND_BACKGROUND_INDEX   (16)
637#define WND_LAST_INDEX         (20)
638
639#define WND_EXTRA_BYTES     (WND_LAST_INDEX)
640
641extern DWORD dwWindowsThreadId;
642extern HANDLE hWindowsThread;
643extern DWORD dwMainThreadId;
644extern HANDLE hMainThread;
645
646typedef struct W32Msg {
647    MSG msg;
648    DWORD dwModifiers;
649    RECT rect;
650} W32Msg;
651
652/* Structure for recording message when input thread must return a
653   result that depends on lisp thread to compute.  Lisp thread can
654   complete deferred messages out of order.  */
655typedef struct deferred_msg
656{
657  struct deferred_msg * next;
658  W32Msg                w32msg;
659  LRESULT               result;
660  int                   completed;
661} deferred_msg;
662
663extern CRITICAL_SECTION critsect;
664
665extern void init_crit ();
666extern void delete_crit ();
667
668extern void signal_quit ();
669
670#define enter_crit() EnterCriticalSection (&critsect)
671#define leave_crit() LeaveCriticalSection (&critsect)
672
673extern void select_palette (struct frame * f, HDC hdc);
674extern void deselect_palette (struct frame * f, HDC hdc);
675extern HDC get_frame_dc (struct frame * f);
676extern int release_frame_dc (struct frame * f, HDC hDC);
677
678extern void drain_message_queue ();
679
680extern BOOL get_next_msg ();
681extern BOOL post_msg ();
682extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
683extern void wait_for_sync ();
684
685extern BOOL parse_button ();
686
687/* Keypad command key support.  W32 doesn't have virtual keys defined
688   for the function keys on the keypad (they are mapped to the standard
689   fuction keys), so we define our own.  */
690#define VK_NUMPAD_BEGIN		0x92
691#define VK_NUMPAD_CLEAR		(VK_NUMPAD_BEGIN + 0)
692#define VK_NUMPAD_ENTER		(VK_NUMPAD_BEGIN + 1)
693#define VK_NUMPAD_PRIOR		(VK_NUMPAD_BEGIN + 2)
694#define VK_NUMPAD_NEXT		(VK_NUMPAD_BEGIN + 3)
695#define VK_NUMPAD_END		(VK_NUMPAD_BEGIN + 4)
696#define VK_NUMPAD_HOME		(VK_NUMPAD_BEGIN + 5)
697#define VK_NUMPAD_LEFT		(VK_NUMPAD_BEGIN + 6)
698#define VK_NUMPAD_UP		(VK_NUMPAD_BEGIN + 7)
699#define VK_NUMPAD_RIGHT		(VK_NUMPAD_BEGIN + 8)
700#define VK_NUMPAD_DOWN		(VK_NUMPAD_BEGIN + 9)
701#define VK_NUMPAD_INSERT	(VK_NUMPAD_BEGIN + 10)
702#define VK_NUMPAD_DELETE	(VK_NUMPAD_BEGIN + 11)
703
704#ifndef VK_LWIN
705/* Older compiler environments don't have these defined.  */
706#define VK_LWIN			0x5B
707#define VK_RWIN			0x5C
708#define VK_APPS			0x5D
709#endif
710
711/* Support for treating Windows and Apps keys as modifiers.  These
712   constants must not overlap with any of the dwControlKeyState flags in
713   KEY_EVENT_RECORD.  */
714#define LEFT_WIN_PRESSED       0x8000
715#define RIGHT_WIN_PRESSED      0x4000
716#define APPS_PRESSED           0x2000
717
718/* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
719   (even though they are supported on 98 and ME.  */
720#ifndef WM_MOUSELEAVE
721#define WM_MOUSELEAVE 0x02A3
722#define TME_LEAVE 0x00000002;
723
724typedef struct tagTRACKMOUSEEVENT
725{
726  DWORD cbSize;
727  DWORD dwFlags;
728  HWND hwndTrack;
729  DWORD dwHoverTime;
730} TRACKMOUSEEVENT;
731#endif
732
733struct image;
734struct face;
735
736XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
737struct frame * check_x_frame (Lisp_Object);
738Lisp_Object vga_stdcolor_name (int);
739
740EXFUN (Fx_display_color_p, 1);
741EXFUN (Fx_display_grayscale_p, 1);
742
743#define FONT_TYPE_FOR_UNIBYTE(font, ch)			\
744  ((font)->bdf ? BDF_1D_FONT : ANSI_FONT)
745
746#define FONT_TYPE_FOR_MULTIBYTE(font, ch)		\
747  (!(font)->bdf						\
748   ? UNICODE_FONT					\
749   : ((CHARSET_DIMENSION (CHAR_CHARSET ((ch))) == 1)	\
750      ? BDF_1D_FONT : BDF_2D_FONT))
751
752typedef DWORD (WINAPI * ClipboardSequence_Proc) ();
753typedef BOOL (WINAPI * AppendMenuW_Proc) (
754    IN HMENU,
755    IN UINT,
756    IN UINT_PTR,
757    IN LPCWSTR);
758
759/* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
760   (do not change this comment) */
761