src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft Windows API.
   2    Copyright (C) 1995, 2001-2012 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
  75 \f
  76 /* For each display (currently only one on w32), we have a structure that
  77    records information about it.  */
  78
  79 struct w32_display_info
  80 {
  81   /* Chain of all w32_display_info structures.  */
  82   struct w32_display_info *next;
  83
  84   /* The generic display parameters corresponding to this w32 display.  */
  85   struct terminal *terminal;
  86
  87   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
  88      The same cons cell also appears in x_display_name_list.  */
  89   Lisp_Object name_list_element;
  90
  91   /* Number of frames that are on this display.  */
  92   int reference_count;
  93
  94   /* Dots per inch of the screen.  */
  95   double resx, resy;
  96
  97   /* Number of planes on this screen.  */
  98   int n_planes;
  99
 100   /* Number of bits per pixel on this screen.  */
 101   int n_cbits;
 102
 103   /* Mask of things that cause the mouse to be grabbed.  */
 104   int grabbed;
 105
 106   /* Emacs bitmap-id of the default icon bitmap for this frame.
 107      Or -1 if none has been allocated yet.  */
 108   ptrdiff_t icon_bitmap_id;
 109
 110   /* The root window of this screen.  */
 111   Window root_window;
 112
 113   /* The cursor to use for vertical scroll bars.  */
 114   Cursor vertical_scroll_bar_cursor;
 115
 116   /* Resource data base */
 117   XrmDatabase xrdb;
 118
 119   /* color palette information.  */
 120   int has_palette;
 121   struct w32_palette_entry * color_list;
 122   unsigned num_colors;
 123   HPALETTE palette;
 124
 125   /* deferred action flags checked when starting frame update.  */
 126   int regen_palette;
 127
 128   /* Keystroke that has been faked by Emacs and will be ignored when
 129      received; value is reset after key is received.  */
 130   int faked_key;
 131
 132   /* Minimum width over all characters in all fonts in font_table.  */
 133   int smallest_char_width;
 134
 135   /* Minimum font height over all fonts in font_table.  */
 136   int smallest_font_height;
 137
 138   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 139   XGCValues *scratch_cursor_gc;
 140
 141   /* Information about the range of text currently shown in
 142      mouse-face.  */
 143   Mouse_HLInfo mouse_highlight;
 144
 145   char *w32_id_name;
 146
 147   /* The number of fonts actually stored in w32_font_table.
 148      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 149      n_fonts <= font_table_size. and font_table[i].name != 0. */
 150   int n_fonts;
 151
 152   /* Pointer to bitmap records.  */
 153   struct w32_bitmap_record *bitmaps;
 154
 155   /* Allocated size of bitmaps field.  */
 156   ptrdiff_t bitmaps_size;
 157
 158   /* Last used bitmap index.  */
 159   ptrdiff_t bitmaps_last;
 160
 161   /* The frame (if any) which has the window that has keyboard focus.
 162      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 163      that a mere EnterNotify event can set this; if you need to know the
 164      last frame specified in a FocusIn or FocusOut event, use
 165      w32_focus_event_frame.  */
 166   struct frame *w32_focus_frame;
 167
 168   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 169      separate from w32_focus_frame, because whether or not LeaveNotify
 170      events cause us to lose focus depends on whether or not we have
 171      received a FocusIn event for it.  */
 172   struct frame *w32_focus_event_frame;
 173
 174   /* The frame which currently has the visual highlight, and should get
 175      keyboard input (other sorts of input have the frame encoded in the
 176      event).  It points to the focus frame's selected window's
 177      frame.  It differs from w32_focus_frame when we're using a global
 178      minibuffer.  */
 179   struct frame *x_highlight_frame;
 180 };
 181
 182 /* This is a chain of structures for all the displays currently in use.  */
 183 extern struct w32_display_info *x_display_list;
 184 extern struct w32_display_info one_w32_display_info;
 185
 186 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 187    one for each element of w32_display_list and in the same order.
 188    NAME is the name of the frame.
 189    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 190 extern Lisp_Object w32_display_name_list;
 191
 192 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 193
 194 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 195
 196 Lisp_Object display_x_get_resource (struct w32_display_info *,
 197                                     Lisp_Object, Lisp_Object,
 198                                     Lisp_Object, Lisp_Object);
 199
 200 extern void x_focus_on_frame (struct frame *f);
 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 void check_w32 (void);
 207 extern int w32_defined_color (FRAME_PTR f, const char *color,
 208                               XColor *color_def, int alloc);
 209 extern void x_set_window_size (struct frame *f, int change_grav,
 210                               int cols, int rows);
 211 extern int x_display_pixel_height (struct w32_display_info *);
 212 extern int x_display_pixel_width (struct w32_display_info *);
 213 extern void x_sync (struct frame *);
 214 extern Lisp_Object x_get_focus_frame (struct frame *);
 215 extern void x_set_mouse_position (struct frame *f, int h, int v);
 216 extern void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
 217 extern void x_make_frame_visible (struct frame *f);
 218 extern void x_make_frame_invisible (struct frame *f);
 219 extern void x_iconify_frame (struct frame *f);
 220 extern int x_char_width (struct frame *f);
 221 extern int x_char_height (struct frame *f);
 222 extern int x_pixel_width (struct frame *f);
 223 extern int x_pixel_height (struct frame *f);
 224 extern void x_set_frame_alpha (struct frame *f);
 225 extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 226 extern void x_set_tool_bar_lines (struct frame *f,
 227                                   Lisp_Object value,
 228                                   Lisp_Object oldval);
 229 extern void x_activate_menubar (struct frame *);
 230 extern int x_bitmap_icon (struct frame *, Lisp_Object);
 231 extern void initialize_frame_menubar (struct frame *);
 232 extern void x_free_frame_resources (struct frame *);
 233 extern void x_real_positions (struct frame *, int *, int *);
 234
 235 /* w32inevt.c */
 236 extern int w32_kbd_patch_key (KEY_EVENT_RECORD *event, int cpId);
 237 extern int w32_kbd_mods_to_emacs (DWORD mods, WORD key);
 238
 239
 240 extern Lisp_Object x_get_focus_frame (struct frame *);
 241
 242 \f
 243 #define PIX_TYPE COLORREF
 244
 245 /* Each W32 frame object points to its own struct w32_display object
 246    in the output_data.w32 field.  The w32_display structure contains all
 247    the information that is specific to W32 windows.  */
 248
 249 /* Put some things in x_output for compatibility.
 250    NTEMACS_TODO: Move all common things here to eliminate unnecessary
 251    diffs between X and w32 code.  */
 252 struct x_output
 253 {
 254   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 255      frame, or IMPLICIT if we received an EnterNotify.
 256      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 257   int focus_state;
 258 };
 259
 260 enum
 261 {
 262   /* Values for focus_state, used as bit mask.
 263      EXPLICIT means we received a FocusIn for the frame and know it has
 264      the focus.  IMPLICIT means we received an EnterNotify and the frame
 265      may have the focus if no window manager is running.
 266      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 267   FOCUS_NONE     = 0,
 268   FOCUS_IMPLICIT = 1,
 269   FOCUS_EXPLICIT = 2
 270 };
 271
 272 struct w32_output
 273 {
 274   /* Placeholder for things accessed through output_data.x.  */
 275   struct x_output x_compatible;
 276
 277   /* Menubar "widget" handle.  */
 278   HMENU menubar_widget;
 279
 280   /* Original palette (used to deselect real palette after drawing) */
 281   HPALETTE old_palette;
 282
 283   /* Here are the Graphics Contexts for the default font.  */
 284   XGCValues *cursor_gc;                         /* cursor drawing */
 285
 286   /* The window used for this frame.
 287      May be zero while the frame object is being created
 288      and the window has not yet been created.  */
 289   Window window_desc;
 290
 291   /* The window that is the parent of this window.
 292      Usually this is a window that was made by the window manager,
 293      but it can be the root window, and it can be explicitly specified
 294      (see the explicit_parent field, below).  */
 295   Window parent_desc;
 296
 297   /* Default ASCII font of this frame. */
 298   struct font *font;
 299
 300   /* The baseline offset of the default ASCII font.  */
 301   int baseline_offset;
 302
 303   /* If a fontset is specified for this frame instead of font, this
 304      value contains an ID of the fontset, else -1.  */
 305   int fontset;
 306
 307   /* Pixel values used for various purposes.
 308      border_pixel may be -1 meaning use a gray tile.  */
 309   COLORREF cursor_pixel;
 310   COLORREF border_pixel;
 311   COLORREF mouse_pixel;
 312   COLORREF cursor_foreground_pixel;
 313
 314   /* Foreground color for scroll bars.  A value of -1 means use the
 315      default (black for non-toolkit scroll bars).  */
 316   COLORREF scroll_bar_foreground_pixel;
 317
 318   /* Background color for scroll bars.  A value of -1 means use the
 319      default (background color of the frame for non-toolkit scroll
 320      bars).  */
 321   COLORREF scroll_bar_background_pixel;
 322
 323   /* Descriptor for the cursor in use for this window.  */
 324   Cursor text_cursor;
 325   Cursor nontext_cursor;
 326   Cursor modeline_cursor;
 327   Cursor hand_cursor;
 328   Cursor hourglass_cursor;
 329   Cursor horizontal_drag_cursor;
 330
 331   /* Non-zero means hourglass cursor is currently displayed.  */
 332   unsigned hourglass_p : 1;
 333
 334   /* Non-hourglass cursor that is currently active.  */
 335   Cursor current_cursor;
 336
 337   DWORD dwStyle;
 338
 339   /* This is the Emacs structure for the display this frame is on.  */
 340   /* struct w32_display_info *display_info; */
 341
 342   /* Nonzero means our parent is another application's window
 343      and was explicitly specified.  */
 344   unsigned explicit_parent : 1;
 345
 346   /* Nonzero means tried already to make this frame visible.  */
 347   unsigned asked_for_visible : 1;
 348
 349   /* Nonzero means menubar is currently active.  */
 350   unsigned menubar_active : 1;
 351
 352   /* Relief GCs, colors etc.  */
 353   struct relief
 354   {
 355     XGCValues *gc;
 356     unsigned long pixel;
 357     int allocated_p;
 358   }
 359   black_relief, white_relief;
 360
 361   /* The background for which the above relief GCs were set up.
 362      They are changed only when a different background is involved.  */
 363   unsigned long relief_background;
 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_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 381 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 382
 383 /* This is the `Display *' which frame F is on.  */
 384 #define FRAME_X_DISPLAY(f) (0)
 385
 386 /* Value is the smallest width of any character in any font on frame F.  */
 387
 388 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 389      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 390
 391 /* Value is the smallest height of any font on frame F.  */
 392
 393 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 394      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 395 \f
 396 /* W32-specific scroll bar stuff.  */
 397
 398 /* We represent scroll bars as lisp vectors.  This allows us to place
 399    references to them in windows without worrying about whether we'll
 400    end up with windows referring to dead scroll bars; the garbage
 401    collector will free it when its time comes.
 402
 403    We use struct scroll_bar as a template for accessing fields of the
 404    vector.  */
 405
 406 struct scroll_bar {
 407
 408   /* This field is shared by all vectors.  */
 409   struct vectorlike_header header;
 410
 411   /* The window we're a scroll bar for.  */
 412   Lisp_Object window;
 413
 414   /* The next and previous in the chain of scroll bars in this frame.  */
 415   Lisp_Object next, prev;
 416
 417   /* The window representing this scroll bar.  Since this is a full
 418      32-bit quantity, we store it split into two 32-bit values.  */
 419   Lisp_Object w32_window_low, w32_window_high;
 420
 421   /* Same as above for the widget.  */
 422   Lisp_Object w32_widget_low, w32_widget_high;
 423
 424   /* The position and size of the scroll bar in pixels, relative to the
 425      frame.  */
 426   Lisp_Object top, left, width, height;
 427
 428   /* The starting and ending positions of the handle, relative to the
 429      handle area (i.e. zero is the top position, not
 430      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 431      hasn't been drawn yet.
 432
 433      These are not actually the locations where the beginning and end
 434      are drawn; in order to keep handles from becoming invisible when
 435      editing large files, we establish a minimum height by always
 436      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 437      where they would be normally; the bottom and top are in a
 438      different co-ordinate system.  */
 439   Lisp_Object start, end;
 440
 441   /* If the scroll bar handle is currently being dragged by the user,
 442      this is the number of pixels from the top of the handle to the
 443      place where the user grabbed it.  If the handle isn't currently
 444      being dragged, this is Qnil.  */
 445   Lisp_Object dragging;
 446
 447   /* t if the background of the fringe that is adjacent to a scroll
 448      bar is extended to the gap between the fringe and the bar.  */
 449   Lisp_Object fringe_extended_p;
 450 };
 451
 452 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 453 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 454
 455 #ifdef _WIN64
 456 /* Building a 64-bit C integer from two 32-bit lisp integers.  */
 457 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 32 | XINT (low))
 458
 459 /* Setting two lisp integers to the low and high words of a 64-bit C int.  */
 460 #define SCROLL_BAR_UNPACK(low, high, int64) \
 461   (XSETINT ((low),   ((DWORDLONG)(int64))        & 0xffffffff), \
 462    XSETINT ((high), ((DWORDLONG)(int64) >> 32) & 0xffffffff))
 463 #else  /* not _WIN64 */
 464 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 465 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 466
 467 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 468 #define SCROLL_BAR_UNPACK(low, high, int32) \
 469   (XSETINT ((low),   (int32)        & 0xffff), \
 470    XSETINT ((high), ((int32) >> 16) & 0xffff))
 471 #endif  /* not _WIN64 */
 472
 473 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 474 #define SCROLL_BAR_W32_WINDOW(ptr) \
 475   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 476
 477 /* Store a window id in a struct scroll_bar.  */
 478 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 479   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (intptr_t) id))
 480
 481 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 482 #define SCROLL_BAR_X_WIDGET(ptr) \
 483   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 484
 485 /* Store a widget id in a struct scroll_bar.  */
 486 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 487   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 488
 489 /* Return the inside width of a vertical scroll bar, given the outside
 490    width.  */
 491 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 492   ((width) \
 493    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 494    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 495    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 496
 497 /* Return the length of the rectangle within which the top of the
 498    handle must stay.  This isn't equivalent to the inside height,
 499    because the scroll bar handle has a minimum height.
 500
 501    This is the real range of motion for the scroll bar, so when we're
 502    scaling buffer positions to scroll bar positions, we use this, not
 503    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 504 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 505   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 506
 507 /* Return the inside height of vertical scroll bar, given the outside
 508    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 509 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 510   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 511
 512
 513 /* Border widths for scroll bars.
 514
 515    Scroll bar windows don't have any borders; their border width is
 516    set to zero, and we redraw borders ourselves.  This makes the code
 517    a bit cleaner, since we don't have to convert between outside width
 518    (used when relating to the rest of the screen) and inside width
 519    (used when sizing and drawing the scroll bar window itself).
 520
 521    The handle moves up and down/back and forth in a rectangle inset
 522    from the edges of the scroll bar.  These are widths by which we
 523    inset the handle boundaries from the scroll bar edges.  */
 524 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 525 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 526 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 527 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 528
 529 /* Minimum lengths for scroll bar handles, in pixels.  */
 530 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 531
 532 /* Trimming off a few pixels from each side prevents
 533    text from glomming up against the scroll bar */
 534 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 535
 536 \f
 537 struct frame;  /* from frame.h */
 538
 539 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 540 extern void w32_clear_window (struct frame *);
 541
 542 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 543 do { \
 544     RECT rect; \
 545     rect.left = x; \
 546     rect.top = y; \
 547     rect.right = x + nx; \
 548     rect.bottom = y + ny; \
 549     w32_fill_rect (f,hdc,pix,&rect); \
 550 } while (0)
 551
 552 #define w32_clear_rect(f,hdc,lprect) \
 553   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 554
 555 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 556   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 557
 558 /* Define for earlier versions of Visual C */
 559 #ifndef WM_MOUSEWHEEL
 560 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 561 #endif /* WM_MOUSEWHEEL */
 562 #ifndef MSH_MOUSEWHEEL
 563 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 564 #endif /* MSH_MOUSEWHEEL */
 565 #ifndef WM_XBUTTONDOWN
 566 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 567 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 568 #endif /* WM_XBUTTONDOWN */
 569 #ifndef WM_MOUSEHWHEEL
 570 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 571 #endif /* WM_MOUSEHWHEEL  */
 572 #ifndef WM_APPCOMMAND
 573 #define WM_APPCOMMAND 0x319
 574 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 575 #endif
 576 #ifndef WM_UNICHAR
 577 #define WM_UNICHAR 0x109
 578 #endif
 579 #ifndef UNICODE_NOCHAR
 580 #define UNICODE_NOCHAR 0xFFFF
 581 #endif
 582
 583 #define WM_EMACS_START                 (WM_USER + 1)
 584 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 585 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 586 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 587 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 588 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 589 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 590 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 591 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 592 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 593 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 594 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 595 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 596 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 597 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 598 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 599 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 600 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 601 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 602 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 603 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 604 #define WM_EMACS_PAINT                 (WM_EMACS_START + 20)
 605 #define WM_EMACS_BRINGTOTOP            (WM_EMACS_START + 21)
 606 #define WM_EMACS_INPUT_READY           (WM_EMACS_START + 22)
 607 #define WM_EMACS_END                   (WM_EMACS_START + 23)
 608
 609 #define WND_FONTWIDTH_INDEX    (0)
 610 #define WND_LINEHEIGHT_INDEX   (4)
 611 #define WND_BORDER_INDEX       (8)
 612 #define WND_SCROLLBAR_INDEX    (12)
 613 #define WND_BACKGROUND_INDEX   (16)
 614 #define WND_LAST_INDEX         (20)
 615
 616 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 617
 618 extern DWORD dwWindowsThreadId;
 619 extern HANDLE hWindowsThread;
 620 extern DWORD dwMainThreadId;
 621 extern HANDLE hMainThread;
 622
 623 typedef struct W32Msg {
 624     MSG msg;
 625     DWORD dwModifiers;
 626     RECT rect;
 627 } W32Msg;
 628
 629 extern BOOL prepend_msg (W32Msg *lpmsg);
 630
 631 /* Structure for recording message when input thread must return a
 632    result that depends on lisp thread to compute.  Lisp thread can
 633    complete deferred messages out of order.  */
 634 typedef struct deferred_msg
 635 {
 636   struct deferred_msg * next;
 637   W32Msg                w32msg;
 638   LRESULT               result;
 639   int                   completed;
 640 } deferred_msg;
 641
 642 extern CRITICAL_SECTION critsect;
 643
 644 extern void init_crit (void);
 645 extern void delete_crit (void);
 646
 647 extern void signal_quit (void);
 648
 649 #define enter_crit() EnterCriticalSection (&critsect)
 650 #define leave_crit() LeaveCriticalSection (&critsect)
 651
 652 extern void select_palette (struct frame * f, HDC hdc);
 653 extern void deselect_palette (struct frame * f, HDC hdc);
 654 extern HDC get_frame_dc (struct frame * f);
 655 extern int release_frame_dc (struct frame * f, HDC hDC);
 656
 657 extern void drain_message_queue (void);
 658
 659 extern BOOL get_next_msg (W32Msg *, BOOL);
 660 extern BOOL post_msg (W32Msg *);
 661 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 662
 663 extern BOOL parse_button (int, int, int *, int *);
 664
 665 extern void w32_sys_ring_bell (struct frame *f);
 666 extern void x_delete_display (struct w32_display_info *dpyinfo);
 667 extern void w32_initialize_display_info (Lisp_Object);
 668 extern void initialize_w32_display (struct terminal *);
 669
 670
 671 /* Keypad command key support.  W32 doesn't have virtual keys defined
 672    for the function keys on the keypad (they are mapped to the standard
 673    function keys), so we define our own.  */
 674 #define VK_NUMPAD_BEGIN         0x92
 675 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 676 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 677 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 678 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 679 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 680 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 681 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 682 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 683 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 684 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 685 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 686 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 687
 688 #ifndef VK_LWIN
 689 /* Older compiler environments don't have these defined.  */
 690 #define VK_LWIN                 0x5B
 691 #define VK_RWIN                 0x5C
 692 #define VK_APPS                 0x5D
 693 #endif
 694
 695 /* Support for treating Windows and Apps keys as modifiers.  These
 696    constants must not overlap with any of the dwControlKeyState flags in
 697    KEY_EVENT_RECORD.  */
 698 #define LEFT_WIN_PRESSED       0x8000
 699 #define RIGHT_WIN_PRESSED      0x4000
 700 #define APPS_PRESSED           0x2000
 701
 702 /* The current ANSI input codepage for GUI sessions.  */
 703 extern int w32_keyboard_codepage;
 704
 705 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 706    (even though they are supported on 98 and ME.  */
 707 #ifndef WM_MOUSELEAVE
 708 #define WM_MOUSELEAVE 0x02A3
 709 #define TME_LEAVE 0x00000002;
 710
 711 typedef struct tagTRACKMOUSEEVENT
 712 {
 713   DWORD cbSize;
 714   DWORD dwFlags;
 715   HWND hwndTrack;
 716   DWORD dwHoverTime;
 717 } TRACKMOUSEEVENT;
 718 #endif
 719
 720 struct image;
 721 struct face;
 722
 723 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 724 struct frame * check_x_frame (Lisp_Object);
 725
 726 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 727 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 728     IN HMENU,
 729     IN UINT,
 730     IN UINT_PTR,
 731     IN LPCWSTR);
 732
 733 extern HWND w32_system_caret_hwnd;
 734 extern int w32_system_caret_height;
 735 extern int w32_system_caret_x;
 736 extern int w32_system_caret_y;
 737
 738 #ifdef _MSC_VER
 739 #ifndef EnumSystemLocales
 740 /* MSVC headers define these only for _WIN32_WINNT >= 0x0500.  */
 741 typedef BOOL (CALLBACK *LOCALE_ENUMPROCA)(LPSTR);
 742 typedef BOOL (CALLBACK *LOCALE_ENUMPROCW)(LPWSTR);
 743 BOOL WINAPI EnumSystemLocalesA(LOCALE_ENUMPROCA,DWORD);
 744 BOOL WINAPI EnumSystemLocalesW(LOCALE_ENUMPROCW,DWORD);
 745 #ifdef UNICODE
 746 #define EnumSystemLocales EnumSystemLocalesW
 747 #else
 748 #define EnumSystemLocales EnumSystemLocalesA
 749 #endif
 750 #endif
 751 #endif
 752
 753 #if EMACSDEBUG
 754 extern const char*
 755 w32_name_of_message (UINT msg);
 756 #endif /* EMACSDEBUG */
 757
 758 extern void syms_of_w32term (void);
 759 extern void syms_of_w32menu (void);
 760 extern void syms_of_w32fns (void);
 761
 762 extern void globals_of_w32menu (void);
 763 extern void globals_of_w32fns (void);
 764
 765 #ifdef CYGWIN
 766 extern int w32_message_fd;
 767 #endif /* CYGWIN */