src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft W32 API.
   2    Copyright (C) 1995, 2001, 2002, 2003, 2004,
   3                  2005, 2006, 2007, 2008, 2009, 2010 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 "w32gui.h"
  23
  24 \f
  25 #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
  26 #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
  27
  28 #define FONT_WIDTH(f)     ((f)->max_width)
  29 #define FONT_HEIGHT(f)    ((f)->height)
  30 #define FONT_BASE(f)      ((f)->ascent)
  31 #define FONT_DESCENT(f)   ((f)->descent)
  32
  33 #define CP_DEFAULT 1004
  34
  35 #define CHECK_W32_FRAME(f, frame)               \
  36   if (NILP (frame))                             \
  37     f = SELECTED_FRAME ();                      \
  38   else                                          \
  39     {                                           \
  40       CHECK_LIVE_FRAME (frame, 0);              \
  41       f = XFRAME (frame);                       \
  42     }                                           \
  43   if (! FRAME_W32_P (f))
  44
  45 /* Indicates whether we are in the readsocket call and the message we
  46    are processing in the current loop */
  47
  48 extern MSG CurMsg;
  49 extern BOOL bUseDflt;
  50
  51 /* Structure recording bitmaps and reference count.
  52    If REFCOUNT is 0 then this record is free to be reused.  */
  53
  54 struct w32_bitmap_record
  55 {
  56   Pixmap pixmap;
  57   char *file;
  58   HINSTANCE hinst; /* Used to load the file */
  59   int refcount;
  60   /* Record some info about this pixmap.  */
  61   int height, width, depth;
  62 };
  63
  64 /* Palette book-keeping stuff for mapping requested colors into the
  65    system palette.  Keep a ref-counted list of requested colors and
  66    regenerate the app palette whenever the requested list changes. */
  67
  68 extern Lisp_Object Vw32_enable_palette;
  69
  70 struct w32_palette_entry {
  71   struct w32_palette_entry * next;
  72   PALETTEENTRY entry;
  73 #if 0
  74   unsigned refcount;
  75 #endif
  76 };
  77
  78 extern void w32_regenerate_palette(struct frame *f);
  79
  80 \f
  81 /* For each display (currently only one on w32), we have a structure that
  82    records information about it.  */
  83
  84 struct w32_display_info
  85 {
  86   /* Chain of all w32_display_info structures.  */
  87   struct w32_display_info *next;
  88
  89   /* The generic display parameters corresponding to this w32 display.  */
  90   struct terminal *terminal;
  91
  92   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
  93      The same cons cell also appears in x_display_name_list.  */
  94   Lisp_Object name_list_element;
  95
  96   /* Number of frames that are on this display.  */
  97   int reference_count;
  98
  99   /* Dots per inch of the screen.  */
 100   double resx, resy;
 101
 102   /* Number of planes on this screen.  */
 103   int n_planes;
 104
 105   /* Number of bits per pixel on this screen.  */
 106   int n_cbits;
 107
 108   /* Mask of things that cause the mouse to be grabbed.  */
 109   int grabbed;
 110
 111   /* Emacs bitmap-id of the default icon bitmap for this frame.
 112      Or -1 if none has been allocated yet.  */
 113   int icon_bitmap_id;
 114
 115   /* The root window of this screen.  */
 116   Window root_window;
 117
 118   /* The cursor to use for vertical scroll bars.  */
 119   Cursor vertical_scroll_bar_cursor;
 120
 121   /* Resource data base */
 122   XrmDatabase xrdb;
 123
 124   /* color palette information.  */
 125   int has_palette;
 126   struct w32_palette_entry * color_list;
 127   unsigned num_colors;
 128   HPALETTE palette;
 129
 130   /* deferred action flags checked when starting frame update.  */
 131   int regen_palette;
 132
 133   /* Keystroke that has been faked by Emacs and will be ignored when
 134      received; value is reset after key is received.  */
 135   int faked_key;
 136
 137   /* Minimum width over all characters in all fonts in font_table.  */
 138   int smallest_char_width;
 139
 140   /* Minimum font height over all fonts in font_table.  */
 141   int smallest_font_height;
 142
 143   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 144   XGCValues *scratch_cursor_gc;
 145
 146   /* Information about the range of text currently shown in
 147      mouse-face.  */
 148   Mouse_HLInfo mouse_highlight;
 149
 150   char *w32_id_name;
 151
 152   /* The number of fonts actually stored in w32_font_table.
 153      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 154      n_fonts <= font_table_size. and font_table[i].name != 0. */
 155   int n_fonts;
 156
 157   /* Pointer to bitmap records.  */
 158   struct w32_bitmap_record *bitmaps;
 159
 160   /* Allocated size of bitmaps field.  */
 161   int bitmaps_size;
 162
 163   /* Last used bitmap index.  */
 164   int bitmaps_last;
 165
 166   /* The frame (if any) which has the window that has keyboard focus.
 167      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 168      that a mere EnterNotify event can set this; if you need to know the
 169      last frame specified in a FocusIn or FocusOut event, use
 170      w32_focus_event_frame.  */
 171   struct frame *w32_focus_frame;
 172
 173   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 174      separate from w32_focus_frame, because whether or not LeaveNotify
 175      events cause us to lose focus depends on whether or not we have
 176      received a FocusIn event for it.  */
 177   struct frame *w32_focus_event_frame;
 178
 179   /* The frame which currently has the visual highlight, and should get
 180      keyboard input (other sorts of input have the frame encoded in the
 181      event).  It points to the focus frame's selected window's
 182      frame.  It differs from w32_focus_frame when we're using a global
 183      minibuffer.  */
 184   struct frame *x_highlight_frame;
 185 };
 186
 187 /* This is a chain of structures for all the displays currently in use.  */
 188 extern struct w32_display_info *x_display_list;
 189 extern struct w32_display_info one_w32_display_info;
 190
 191 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 192    one for each element of w32_display_list and in the same order.
 193    NAME is the name of the frame.
 194    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 195 extern Lisp_Object w32_display_name_list;
 196
 197 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 198 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 199
 200 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 201
 202 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 203
 204 Lisp_Object display_x_get_resource (struct w32_display_info *,
 205                                     Lisp_Object, Lisp_Object,
 206                                     Lisp_Object, Lisp_Object);
 207
 208 extern struct w32_display_info *w32_term_init (Lisp_Object,
 209                                                char *, char *);
 210
 211 extern int x_display_pixel_height (struct w32_display_info *);
 212 extern int x_display_pixel_width (struct w32_display_info *);
 213
 214 \f
 215 #define PIX_TYPE COLORREF
 216
 217 /* Each W32 frame object points to its own struct w32_display object
 218    in the output_data.w32 field.  The w32_display structure contains all
 219    the information that is specific to W32 windows.  */
 220
 221 /* Put some things in x_output for compatibility.
 222    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 223    diffs between X and w32 code.  */
 224 struct x_output
 225 {
 226 #if 0 /* These are also defined in struct frame.  Use that instead.  */
 227   PIX_TYPE background_pixel;
 228   PIX_TYPE foreground_pixel;
 229 #endif
 230
 231   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 232      frame, or IMPLICIT if we received an EnterNotify.
 233      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 234   int focus_state;
 235
 236 };
 237
 238 enum
 239 {
 240   /* Values for focus_state, used as bit mask.
 241      EXPLICIT means we received a FocusIn for the frame and know it has
 242      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 243      may have the focus if no window manager is running.
 244      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 245   FOCUS_NONE     = 0,
 246   FOCUS_IMPLICIT = 1,
 247   FOCUS_EXPLICIT = 2
 248 };
 249
 250 struct w32_output
 251 {
 252   /* Placeholder for things accessed through output_data.x.  */
 253   struct x_output x_compatible;
 254
 255   /* Menubar "widget" handle.  */
 256   HMENU menubar_widget;
 257
 258   /* Original palette (used to deselect real palette after drawing) */
 259   HPALETTE old_palette;
 260
 261   /* Here are the Graphics Contexts for the default font.  */
 262   XGCValues *cursor_gc;                         /* cursor drawing */
 263
 264   /* The window used for this frame.
 265      May be zero while the frame object is being created
 266      and the window has not yet been created.  */
 267   Window window_desc;
 268
 269   /* The window that is the parent of this window.
 270      Usually this is a window that was made by the window manager,
 271      but it can be the root window, and it can be explicitly specified
 272      (see the explicit_parent field, below).  */
 273   Window parent_desc;
 274
 275   /* Default ASCII font of this frame. */
 276   struct font *font;
 277
 278   /* The baseline offset of the default ASCII font.  */
 279   int baseline_offset;
 280
 281   /* If a fontset is specified for this frame instead of font, this
 282      value contains an ID of the fontset, else -1.  */
 283   int fontset;
 284
 285   /* Pixel values used for various purposes.
 286      border_pixel may be -1 meaning use a gray tile.  */
 287   COLORREF cursor_pixel;
 288   COLORREF border_pixel;
 289   COLORREF mouse_pixel;
 290   COLORREF cursor_foreground_pixel;
 291
 292   /* Foreground color for scroll bars.  A value of -1 means use the
 293      default (black for non-toolkit scroll bars).  */
 294   COLORREF scroll_bar_foreground_pixel;
 295
 296   /* Background color for scroll bars.  A value of -1 means use the
 297      default (background color of the frame for non-toolkit scroll
 298      bars).  */
 299   COLORREF scroll_bar_background_pixel;
 300
 301   /* Descriptor for the cursor in use for this window.  */
 302   Cursor text_cursor;
 303   Cursor nontext_cursor;
 304   Cursor modeline_cursor;
 305   Cursor hand_cursor;
 306   Cursor hourglass_cursor;
 307   Cursor horizontal_drag_cursor;
 308
 309   /* Non-zero means hourglass cursor is currently displayed.  */
 310   unsigned hourglass_p : 1;
 311
 312   /* Non-hourglass cursor that is currently active.  */
 313   Cursor current_cursor;
 314
 315   /* Flag to set when the window needs to be completely repainted.  */
 316   int needs_exposure;
 317
 318   DWORD dwStyle;
 319
 320   /* This is the Emacs structure for the display this frame is on.  */
 321   /* struct w32_display_info *display_info; */
 322
 323   /* Nonzero means our parent is another application's window
 324      and was explicitly specified.  */
 325   char explicit_parent;
 326
 327   /* Nonzero means tried already to make this frame visible.  */
 328   char asked_for_visible;
 329
 330   /* Nonzero means menubar is currently active.  */
 331   char menubar_active;
 332
 333   /* Nonzero means menubar is about to become active, but should be
 334      brought up to date first.  */
 335   volatile char pending_menu_activation;
 336
 337   /* Relief GCs, colors etc.  */
 338   struct relief
 339   {
 340     XGCValues *gc;
 341     unsigned long pixel;
 342     int allocated_p;
 343   }
 344   black_relief, white_relief;
 345
 346   /* The background for which the above relief GCs were set up.
 347      They are changed only when a different background is involved.  */
 348   unsigned long relief_background;
 349 };
 350
 351 extern struct w32_output w32term_display;
 352
 353 /* Return the X output data for frame F.  */
 354 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 355
 356 /* Return the window associated with the frame F.  */
 357 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 358 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 359
 360 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 361 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 362 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 363
 364 /* This gives the w32_display_info structure for the display F is on.  */
 365 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 366 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 367
 368 /* This is the `Display *' which frame F is on.  */
 369 #define FRAME_X_DISPLAY(f) (0)
 370
 371 /* Value is the smallest width of any character in any font on frame F.  */
 372
 373 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 374      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 375
 376 /* Value is the smallest height of any font on frame F.  */
 377
 378 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 379      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 380 \f
 381 /* W32-specific scroll bar stuff.  */
 382
 383 /* We represent scroll bars as lisp vectors.  This allows us to place
 384    references to them in windows without worrying about whether we'll
 385    end up with windows referring to dead scroll bars; the garbage
 386    collector will free it when its time comes.
 387
 388    We use struct scroll_bar as a template for accessing fields of the
 389    vector.  */
 390
 391 struct scroll_bar {
 392
 393   /* These fields are shared by all vectors.  */
 394   EMACS_INT size_from_Lisp_Vector_struct;
 395   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 396
 397   /* The window we're a scroll bar for.  */
 398   Lisp_Object window;
 399
 400   /* The next and previous in the chain of scroll bars in this frame.  */
 401   Lisp_Object next, prev;
 402
 403   /* The window representing this scroll bar.  Since this is a full
 404      32-bit quantity, we store it split into two 32-bit values.  */
 405   Lisp_Object w32_window_low, w32_window_high;
 406
 407   /* Same as above for the widget.  */
 408   Lisp_Object w32_widget_low, w32_widget_high;
 409
 410   /* The position and size of the scroll bar in pixels, relative to the
 411      frame.  */
 412   Lisp_Object top, left, width, height;
 413
 414   /* The starting and ending positions of the handle, relative to the
 415      handle area (i.e. zero is the top position, not
 416      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 417      hasn't been drawn yet.
 418
 419      These are not actually the locations where the beginning and end
 420      are drawn; in order to keep handles from becoming invisible when
 421      editing large files, we establish a minimum height by always
 422      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 423      where they would be normally; the bottom and top are in a
 424      different co-ordinate system.  */
 425   Lisp_Object start, end;
 426
 427   /* If the scroll bar handle is currently being dragged by the user,
 428      this is the number of pixels from the top of the handle to the
 429      place where the user grabbed it.  If the handle isn't currently
 430      being dragged, this is Qnil.  */
 431   Lisp_Object dragging;
 432
 433   /* t if the background of the fringe that is adjacent to a scroll
 434      bar is extended to the gap between the fringe and the bar.  */
 435   Lisp_Object fringe_extended_p;
 436 };
 437
 438 /* The number of elements a vector holding a struct scroll_bar needs.  */
 439 #define SCROLL_BAR_VEC_SIZE                                     \
 440   ((sizeof (struct scroll_bar)                                  \
 441     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 442    / sizeof (Lisp_Object))
 443
 444 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 445 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 446
 447
 448 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 449 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 450
 451 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 452 #define SCROLL_BAR_UNPACK(low, high, int32) \
 453   (XSETINT ((low),   (int32)        & 0xffff), \
 454    XSETINT ((high), ((int32) >> 16) & 0xffff))
 455
 456
 457 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 458 #define SCROLL_BAR_W32_WINDOW(ptr) \
 459   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 460
 461 /* Store a window id in a struct scroll_bar.  */
 462 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 463   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 464
 465 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 466 #define SCROLL_BAR_X_WIDGET(ptr) \
 467   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 468
 469 /* Store a widget id in a struct scroll_bar.  */
 470 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 471   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 472
 473 /* Return the inside width of a vertical scroll bar, given the outside
 474    width.  */
 475 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 476   ((width) \
 477    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 478    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 479    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 480
 481 /* Return the length of the rectangle within which the top of the
 482    handle must stay.  This isn't equivalent to the inside height,
 483    because the scroll bar handle has a minimum height.
 484
 485    This is the real range of motion for the scroll bar, so when we're
 486    scaling buffer positions to scroll bar positions, we use this, not
 487    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 488 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 489   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 490
 491 /* Return the inside height of vertical scroll bar, given the outside
 492    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 493 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 494   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 495
 496
 497 /* Border widths for scroll bars.
 498
 499    Scroll bar windows don't have any borders; their border width is
 500    set to zero, and we redraw borders ourselves.  This makes the code
 501    a bit cleaner, since we don't have to convert between outside width
 502    (used when relating to the rest of the screen) and inside width
 503    (used when sizing and drawing the scroll bar window itself).
 504
 505    The handle moves up and down/back and forth in a rectangle inset
 506    from the edges of the scroll bar.  These are widths by which we
 507    inset the handle boundaries from the scroll bar edges.  */
 508 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 509 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 510 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 511 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 512
 513 /* Minimum lengths for scroll bar handles, in pixels.  */
 514 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 515
 516 /* Trimming off a few pixels from each side prevents
 517    text from glomming up against the scroll bar */
 518 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 519
 520 \f
 521 struct frame;  /* from frame.h */
 522
 523 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 524 extern void w32_clear_window (struct frame *);
 525
 526 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 527 do { \
 528     RECT rect; \
 529     rect.left = x; \
 530     rect.top = y; \
 531     rect.right = x + nx; \
 532     rect.bottom = y + ny; \
 533     w32_fill_rect (f,hdc,pix,&rect); \
 534 } while (0)
 535
 536 #define w32_clear_rect(f,hdc,lprect) \
 537   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 538
 539 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 540   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 541
 542 /* Define for earlier versions of Visual C */
 543 #ifndef WM_MOUSEWHEEL
 544 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 545 #endif /* WM_MOUSEWHEEL */
 546 #ifndef MSH_MOUSEWHEEL
 547 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 548 #endif /* MSH_MOUSEWHEEL */
 549 #ifndef WM_XBUTTONDOWN
 550 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 551 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 552 #endif /* WM_XBUTTONDOWN */
 553 #ifndef WM_MOUSEHWHEEL
 554 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 555 #endif /* WM_MOUSEHWHEEL  */
 556 #ifndef WM_APPCOMMAND
 557 #define WM_APPCOMMAND 0x319
 558 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 559 #endif
 560 #ifndef WM_UNICHAR
 561 #define WM_UNICHAR 0x109
 562 #endif
 563 #ifndef UNICODE_NOCHAR
 564 #define UNICODE_NOCHAR 0xFFFF
 565 #endif
 566
 567 #define WM_EMACS_START                 (WM_USER + 1)
 568 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 569 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 570 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 571 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 572 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 573 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 574 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 575 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 576 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 577 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 578 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 579 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 580 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 581 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 582 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 583 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 584 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 585 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 586 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 587 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 588 #define WM_EMACS_PAINT                 (WM_EMACS_START + 20)
 589 #define WM_EMACS_END                   (WM_EMACS_START + 21)
 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 /* Structure for recording message when input thread must return a
 612    result that depends on lisp thread to compute.  Lisp thread can
 613    complete deferred messages out of order.  */
 614 typedef struct deferred_msg
 615 {
 616   struct deferred_msg * next;
 617   W32Msg                w32msg;
 618   LRESULT               result;
 619   int                   completed;
 620 } deferred_msg;
 621
 622 extern CRITICAL_SECTION critsect;
 623
 624 extern void init_crit (void);
 625 extern void delete_crit (void);
 626
 627 extern void signal_quit (void);
 628
 629 #define enter_crit() EnterCriticalSection (&critsect)
 630 #define leave_crit() LeaveCriticalSection (&critsect)
 631
 632 extern void select_palette (struct frame * f, HDC hdc);
 633 extern void deselect_palette (struct frame * f, HDC hdc);
 634 extern HDC get_frame_dc (struct frame * f);
 635 extern int release_frame_dc (struct frame * f, HDC hDC);
 636
 637 extern void drain_message_queue (void);
 638
 639 extern BOOL get_next_msg (W32Msg *, BOOL);
 640 extern BOOL post_msg (W32Msg *);
 641 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 642
 643 extern BOOL parse_button (int, int, int *, int *);
 644
 645 extern void w32_sys_ring_bell (struct frame *f);
 646 extern void x_delete_display (struct w32_display_info *dpyinfo);
 647
 648 /* Keypad command key support.  W32 doesn't have virtual keys defined
 649    for the function keys on the keypad (they are mapped to the standard
 650    fuction keys), so we define our own.  */
 651 #define VK_NUMPAD_BEGIN         0x92
 652 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 653 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 654 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 655 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 656 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 657 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 658 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 659 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 660 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 661 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 662 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 663 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 664
 665 #ifndef VK_LWIN
 666 /* Older compiler environments don't have these defined.  */
 667 #define VK_LWIN                 0x5B
 668 #define VK_RWIN                 0x5C
 669 #define VK_APPS                 0x5D
 670 #endif
 671
 672 /* Support for treating Windows and Apps keys as modifiers.  These
 673    constants must not overlap with any of the dwControlKeyState flags in
 674    KEY_EVENT_RECORD.  */
 675 #define LEFT_WIN_PRESSED       0x8000
 676 #define RIGHT_WIN_PRESSED      0x4000
 677 #define APPS_PRESSED           0x2000
 678
 679 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 680    (even though they are supported on 98 and ME.  */
 681 #ifndef WM_MOUSELEAVE
 682 #define WM_MOUSELEAVE 0x02A3
 683 #define TME_LEAVE 0x00000002;
 684
 685 typedef struct tagTRACKMOUSEEVENT
 686 {
 687   DWORD cbSize;
 688   DWORD dwFlags;
 689   HWND hwndTrack;
 690   DWORD dwHoverTime;
 691 } TRACKMOUSEEVENT;
 692 #endif
 693
 694 struct image;
 695 struct face;
 696
 697 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 698 struct frame * check_x_frame (Lisp_Object);
 699
 700 EXFUN (Fx_display_color_p, 1);
 701 EXFUN (Fx_display_grayscale_p, 1);
 702
 703 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 704 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 705     IN HMENU,
 706     IN UINT,
 707     IN UINT_PTR,
 708     IN LPCWSTR);
 709
 710 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 711    (do not change this comment) */