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   /* These variables describe the range of text currently shown in its
 147      mouse-face, together with the window they apply to. As long as
 148      the mouse stays within this range, we need not redraw anything on
 149      its account.  Rows and columns are glyph matrix positions in
 150      MOUSE_FACE_WINDOW.  */
 151   int mouse_face_beg_row, mouse_face_beg_col;
 152   int mouse_face_beg_x, mouse_face_beg_y;
 153   int mouse_face_end_row, mouse_face_end_col;
 154   int mouse_face_end_x, mouse_face_end_y;
 155   int mouse_face_past_end;
 156   Lisp_Object mouse_face_window;
 157   int mouse_face_face_id;
 158   Lisp_Object mouse_face_overlay;
 159
 160   /* 1 if a mouse motion event came and we didn't handle it right away because
 161      gc was in progress.  */
 162   int mouse_face_deferred_gc;
 163
 164   /* FRAME and X, Y position of mouse when last checked for
 165      highlighting.  X and Y can be negative or out of range for the frame.  */
 166   struct frame *mouse_face_mouse_frame;
 167   int mouse_face_mouse_x, mouse_face_mouse_y;
 168
 169   /* Nonzero means defer mouse-motion highlighting.  */
 170   int mouse_face_defer;
 171
 172   /* Nonzero means that the mouse highlight should not be shown.  */
 173   int mouse_face_hidden;
 174
 175   int mouse_face_image_state;
 176
 177   char *w32_id_name;
 178
 179   /* The number of fonts actually stored in w32_font_table.
 180      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 181      n_fonts <= font_table_size. and font_table[i].name != 0. */
 182   int n_fonts;
 183
 184   /* Pointer to bitmap records.  */
 185   struct w32_bitmap_record *bitmaps;
 186
 187   /* Allocated size of bitmaps field.  */
 188   int bitmaps_size;
 189
 190   /* Last used bitmap index.  */
 191   int bitmaps_last;
 192
 193   /* The frame (if any) which has the window that has keyboard focus.
 194      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 195      that a mere EnterNotify event can set this; if you need to know the
 196      last frame specified in a FocusIn or FocusOut event, use
 197      w32_focus_event_frame.  */
 198   struct frame *w32_focus_frame;
 199
 200   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 201      separate from w32_focus_frame, because whether or not LeaveNotify
 202      events cause us to lose focus depends on whether or not we have
 203      received a FocusIn event for it.  */
 204   struct frame *w32_focus_event_frame;
 205
 206   /* The frame which currently has the visual highlight, and should get
 207      keyboard input (other sorts of input have the frame encoded in the
 208      event).  It points to the focus frame's selected window's
 209      frame.  It differs from w32_focus_frame when we're using a global
 210      minibuffer.  */
 211   struct frame *x_highlight_frame;
 212 };
 213
 214 /* This is a chain of structures for all the displays currently in use.  */
 215 extern struct w32_display_info *x_display_list;
 216 extern struct w32_display_info one_w32_display_info;
 217
 218 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 219    one for each element of w32_display_list and in the same order.
 220    NAME is the name of the frame.
 221    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 222 extern Lisp_Object w32_display_name_list;
 223
 224 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 225 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 226
 227 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 228
 229 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 230
 231 Lisp_Object display_x_get_resource (struct w32_display_info *,
 232                                     Lisp_Object, Lisp_Object,
 233                                     Lisp_Object, Lisp_Object);
 234
 235 extern struct w32_display_info *w32_term_init (Lisp_Object,
 236                                                char *, char *);
 237
 238 extern int x_display_pixel_height (struct w32_display_info *);
 239 extern int x_display_pixel_width (struct w32_display_info *);
 240
 241 \f
 242 #define PIX_TYPE COLORREF
 243
 244 /* Each W32 frame object points to its own struct w32_display object
 245    in the output_data.w32 field.  The w32_display structure contains all
 246    the information that is specific to W32 windows.  */
 247
 248 /* Put some things in x_output for compatibility.
 249    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 250    diffs between X and w32 code.  */
 251 struct x_output
 252 {
 253 #if 0 /* These are also defined in struct frame.  Use that instead.  */
 254   PIX_TYPE background_pixel;
 255   PIX_TYPE foreground_pixel;
 256 #endif
 257
 258   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 259      frame, or IMPLICIT if we received an EnterNotify.
 260      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 261   int focus_state;
 262
 263 };
 264
 265 enum
 266 {
 267   /* Values for focus_state, used as bit mask.
 268      EXPLICIT means we received a FocusIn for the frame and know it has
 269      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 270      may have the focus if no window manager is running.
 271      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 272   FOCUS_NONE     = 0,
 273   FOCUS_IMPLICIT = 1,
 274   FOCUS_EXPLICIT = 2
 275 };
 276
 277 struct w32_output
 278 {
 279   /* Placeholder for things accessed through output_data.x.  */
 280   struct x_output x_compatible;
 281
 282   /* Menubar "widget" handle.  */
 283   HMENU menubar_widget;
 284
 285   /* Original palette (used to deselect real palette after drawing) */
 286   HPALETTE old_palette;
 287
 288   /* Here are the Graphics Contexts for the default font.  */
 289   XGCValues *cursor_gc;                         /* cursor drawing */
 290
 291   /* The window used for this frame.
 292      May be zero while the frame object is being created
 293      and the window has not yet been created.  */
 294   Window window_desc;
 295
 296   /* The window that is the parent of this window.
 297      Usually this is a window that was made by the window manager,
 298      but it can be the root window, and it can be explicitly specified
 299      (see the explicit_parent field, below).  */
 300   Window parent_desc;
 301
 302   /* Default ASCII font of this frame. */
 303   struct font *font;
 304
 305   /* The baseline offset of the default ASCII font.  */
 306   int baseline_offset;
 307
 308   /* If a fontset is specified for this frame instead of font, this
 309      value contains an ID of the fontset, else -1.  */
 310   int fontset;
 311
 312   /* Pixel values used for various purposes.
 313      border_pixel may be -1 meaning use a gray tile.  */
 314   COLORREF cursor_pixel;
 315   COLORREF border_pixel;
 316   COLORREF mouse_pixel;
 317   COLORREF cursor_foreground_pixel;
 318
 319   /* Foreground color for scroll bars.  A value of -1 means use the
 320      default (black for non-toolkit scroll bars).  */
 321   COLORREF scroll_bar_foreground_pixel;
 322
 323   /* Background color for scroll bars.  A value of -1 means use the
 324      default (background color of the frame for non-toolkit scroll
 325      bars).  */
 326   COLORREF scroll_bar_background_pixel;
 327
 328   /* Descriptor for the cursor in use for this window.  */
 329   Cursor text_cursor;
 330   Cursor nontext_cursor;
 331   Cursor modeline_cursor;
 332   Cursor hand_cursor;
 333   Cursor hourglass_cursor;
 334   Cursor horizontal_drag_cursor;
 335
 336   /* Non-zero means hourglass cursor is currently displayed.  */
 337   unsigned hourglass_p : 1;
 338
 339   /* Non-hourglass cursor that is currently active.  */
 340   Cursor current_cursor;
 341
 342   /* Flag to set when the window needs to be completely repainted.  */
 343   int needs_exposure;
 344
 345   DWORD dwStyle;
 346
 347   /* This is the Emacs structure for the display this frame is on.  */
 348   /* struct w32_display_info *display_info; */
 349
 350   /* Nonzero means our parent is another application's window
 351      and was explicitly specified.  */
 352   char explicit_parent;
 353
 354   /* Nonzero means tried already to make this frame visible.  */
 355   char asked_for_visible;
 356
 357   /* Nonzero means menubar is currently active.  */
 358   char menubar_active;
 359
 360   /* Nonzero means menubar is about to become active, but should be
 361      brought up to date first.  */
 362   volatile char pending_menu_activation;
 363
 364   /* Relief GCs, colors etc.  */
 365   struct relief
 366   {
 367     XGCValues *gc;
 368     unsigned long pixel;
 369     int allocated_p;
 370   }
 371   black_relief, white_relief;
 372
 373   /* The background for which the above relief GCs were set up.
 374      They are changed only when a different background is involved.  */
 375   unsigned long relief_background;
 376 };
 377
 378 extern struct w32_output w32term_display;
 379
 380 /* Return the X output data for frame F.  */
 381 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 382
 383 /* Return the window associated with the frame F.  */
 384 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 385 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 386
 387 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 388 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 389 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 390
 391 /* This gives the w32_display_info structure for the display F is on.  */
 392 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 393 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 394
 395 /* This is the `Display *' which frame F is on.  */
 396 #define FRAME_X_DISPLAY(f) (0)
 397
 398 /* Value is the smallest width of any character in any font on frame F.  */
 399
 400 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 401      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 402
 403 /* Value is the smallest height of any font on frame F.  */
 404
 405 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 406      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 407 \f
 408 /* W32-specific scroll bar stuff.  */
 409
 410 /* We represent scroll bars as lisp vectors.  This allows us to place
 411    references to them in windows without worrying about whether we'll
 412    end up with windows referring to dead scroll bars; the garbage
 413    collector will free it when its time comes.
 414
 415    We use struct scroll_bar as a template for accessing fields of the
 416    vector.  */
 417
 418 struct scroll_bar {
 419
 420   /* These fields are shared by all vectors.  */
 421   EMACS_INT size_from_Lisp_Vector_struct;
 422   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 423
 424   /* The window we're a scroll bar for.  */
 425   Lisp_Object window;
 426
 427   /* The next and previous in the chain of scroll bars in this frame.  */
 428   Lisp_Object next, prev;
 429
 430   /* The window representing this scroll bar.  Since this is a full
 431      32-bit quantity, we store it split into two 32-bit values.  */
 432   Lisp_Object w32_window_low, w32_window_high;
 433
 434   /* Same as above for the widget.  */
 435   Lisp_Object w32_widget_low, w32_widget_high;
 436
 437   /* The position and size of the scroll bar in pixels, relative to the
 438      frame.  */
 439   Lisp_Object top, left, width, height;
 440
 441   /* The starting and ending positions of the handle, relative to the
 442      handle area (i.e. zero is the top position, not
 443      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 444      hasn't been drawn yet.
 445
 446      These are not actually the locations where the beginning and end
 447      are drawn; in order to keep handles from becoming invisible when
 448      editing large files, we establish a minimum height by always
 449      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 450      where they would be normally; the bottom and top are in a
 451      different co-ordinate system.  */
 452   Lisp_Object start, end;
 453
 454   /* If the scroll bar handle is currently being dragged by the user,
 455      this is the number of pixels from the top of the handle to the
 456      place where the user grabbed it.  If the handle isn't currently
 457      being dragged, this is Qnil.  */
 458   Lisp_Object dragging;
 459
 460   /* t if the background of the fringe that is adjacent to a scroll
 461      bar is extended to the gap between the fringe and the bar.  */
 462   Lisp_Object fringe_extended_p;
 463 };
 464
 465 /* The number of elements a vector holding a struct scroll_bar needs.  */
 466 #define SCROLL_BAR_VEC_SIZE                                     \
 467   ((sizeof (struct scroll_bar)                                  \
 468     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 469    / sizeof (Lisp_Object))
 470
 471 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 472 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 473
 474
 475 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 476 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 477
 478 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 479 #define SCROLL_BAR_UNPACK(low, high, int32) \
 480   (XSETINT ((low),   (int32)        & 0xffff), \
 481    XSETINT ((high), ((int32) >> 16) & 0xffff))
 482
 483
 484 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 485 #define SCROLL_BAR_W32_WINDOW(ptr) \
 486   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 487
 488 /* Store a window id in a struct scroll_bar.  */
 489 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 490   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 491
 492 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 493 #define SCROLL_BAR_X_WIDGET(ptr) \
 494   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 495
 496 /* Store a widget id in a struct scroll_bar.  */
 497 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 498   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 499
 500 /* Return the inside width of a vertical scroll bar, given the outside
 501    width.  */
 502 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 503   ((width) \
 504    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 505    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 506    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 507
 508 /* Return the length of the rectangle within which the top of the
 509    handle must stay.  This isn't equivalent to the inside height,
 510    because the scroll bar handle has a minimum height.
 511
 512    This is the real range of motion for the scroll bar, so when we're
 513    scaling buffer positions to scroll bar positions, we use this, not
 514    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 515 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 516   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 517
 518 /* Return the inside height of vertical scroll bar, given the outside
 519    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 520 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 521   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 522
 523
 524 /* Border widths for scroll bars.
 525
 526    Scroll bar windows don't have any borders; their border width is
 527    set to zero, and we redraw borders ourselves.  This makes the code
 528    a bit cleaner, since we don't have to convert between outside width
 529    (used when relating to the rest of the screen) and inside width
 530    (used when sizing and drawing the scroll bar window itself).
 531
 532    The handle moves up and down/back and forth in a rectangle inset
 533    from the edges of the scroll bar.  These are widths by which we
 534    inset the handle boundaries from the scroll bar edges.  */
 535 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 536 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 537 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 538 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 539
 540 /* Minimum lengths for scroll bar handles, in pixels.  */
 541 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 542
 543 /* Trimming off a few pixels from each side prevents
 544    text from glomming up against the scroll bar */
 545 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 546
 547 \f
 548 struct frame;  /* from frame.h */
 549
 550 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 551 extern void w32_clear_window (struct frame *);
 552
 553 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 554 do { \
 555     RECT rect; \
 556     rect.left = x; \
 557     rect.top = y; \
 558     rect.right = x + nx; \
 559     rect.bottom = y + ny; \
 560     w32_fill_rect (f,hdc,pix,&rect); \
 561 } while (0)
 562
 563 #define w32_clear_rect(f,hdc,lprect) \
 564   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 565
 566 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 567   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 568
 569 /* Define for earlier versions of Visual C */
 570 #ifndef WM_MOUSEWHEEL
 571 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 572 #endif /* WM_MOUSEWHEEL */
 573 #ifndef MSH_MOUSEWHEEL
 574 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 575 #endif /* MSH_MOUSEWHEEL */
 576 #ifndef WM_XBUTTONDOWN
 577 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 578 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 579 #endif /* WM_XBUTTONDOWN */
 580 #ifndef WM_MOUSEHWHEEL
 581 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 582 #endif /* WM_MOUSEHWHEEL  */
 583 #ifndef WM_APPCOMMAND
 584 #define WM_APPCOMMAND 0x319
 585 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 586 #endif
 587 #ifndef WM_UNICHAR
 588 #define WM_UNICHAR 0x109
 589 #endif
 590 #ifndef UNICODE_NOCHAR
 591 #define UNICODE_NOCHAR 0xFFFF
 592 #endif
 593
 594 #define WM_EMACS_START                 (WM_USER + 1)
 595 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 596 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 597 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 598 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 599 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 600 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 601 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 602 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 603 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 604 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 605 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 606 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 607 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 608 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 609 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 610 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 611 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 612 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 613 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 614 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 615 #define WM_EMACS_PAINT                 (WM_EMACS_START + 20)
 616 #define WM_EMACS_END                   (WM_EMACS_START + 21)
 617
 618 #define WND_FONTWIDTH_INDEX    (0)
 619 #define WND_LINEHEIGHT_INDEX   (4)
 620 #define WND_BORDER_INDEX       (8)
 621 #define WND_SCROLLBAR_INDEX    (12)
 622 #define WND_BACKGROUND_INDEX   (16)
 623 #define WND_LAST_INDEX         (20)
 624
 625 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 626
 627 extern DWORD dwWindowsThreadId;
 628 extern HANDLE hWindowsThread;
 629 extern DWORD dwMainThreadId;
 630 extern HANDLE hMainThread;
 631
 632 typedef struct W32Msg {
 633     MSG msg;
 634     DWORD dwModifiers;
 635     RECT rect;
 636 } W32Msg;
 637
 638 /* Structure for recording message when input thread must return a
 639    result that depends on lisp thread to compute.  Lisp thread can
 640    complete deferred messages out of order.  */
 641 typedef struct deferred_msg
 642 {
 643   struct deferred_msg * next;
 644   W32Msg                w32msg;
 645   LRESULT               result;
 646   int                   completed;
 647 } deferred_msg;
 648
 649 extern CRITICAL_SECTION critsect;
 650
 651 extern void init_crit (void);
 652 extern void delete_crit (void);
 653
 654 extern void signal_quit (void);
 655
 656 #define enter_crit() EnterCriticalSection (&critsect)
 657 #define leave_crit() LeaveCriticalSection (&critsect)
 658
 659 extern void select_palette (struct frame * f, HDC hdc);
 660 extern void deselect_palette (struct frame * f, HDC hdc);
 661 extern HDC get_frame_dc (struct frame * f);
 662 extern int release_frame_dc (struct frame * f, HDC hDC);
 663
 664 extern void drain_message_queue (void);
 665
 666 extern BOOL get_next_msg (W32Msg *, BOOL);
 667 extern BOOL post_msg (W32Msg *);
 668 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 669
 670 extern BOOL parse_button (int, int, int *, int *);
 671
 672 extern void w32_sys_ring_bell (struct frame *f);
 673 extern void x_delete_display (struct w32_display_info *dpyinfo);
 674
 675 /* Keypad command key support.  W32 doesn't have virtual keys defined
 676    for the function keys on the keypad (they are mapped to the standard
 677    fuction keys), so we define our own.  */
 678 #define VK_NUMPAD_BEGIN         0x92
 679 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 680 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 681 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 682 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 683 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 684 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 685 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 686 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 687 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 688 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 689 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 690 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 691
 692 #ifndef VK_LWIN
 693 /* Older compiler environments don't have these defined.  */
 694 #define VK_LWIN                 0x5B
 695 #define VK_RWIN                 0x5C
 696 #define VK_APPS                 0x5D
 697 #endif
 698
 699 /* Support for treating Windows and Apps keys as modifiers.  These
 700    constants must not overlap with any of the dwControlKeyState flags in
 701    KEY_EVENT_RECORD.  */
 702 #define LEFT_WIN_PRESSED       0x8000
 703 #define RIGHT_WIN_PRESSED      0x4000
 704 #define APPS_PRESSED           0x2000
 705
 706 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 707    (even though they are supported on 98 and ME.  */
 708 #ifndef WM_MOUSELEAVE
 709 #define WM_MOUSELEAVE 0x02A3
 710 #define TME_LEAVE 0x00000002;
 711
 712 typedef struct tagTRACKMOUSEEVENT
 713 {
 714   DWORD cbSize;
 715   DWORD dwFlags;
 716   HWND hwndTrack;
 717   DWORD dwHoverTime;
 718 } TRACKMOUSEEVENT;
 719 #endif
 720
 721 struct image;
 722 struct face;
 723
 724 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 725 struct frame * check_x_frame (Lisp_Object);
 726
 727 EXFUN (Fx_display_color_p, 1);
 728 EXFUN (Fx_display_grayscale_p, 1);
 729
 730 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 731 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 732     IN HMENU,
 733     IN UINT,
 734     IN UINT_PTR,
 735     IN LPCWSTR);
 736
 737 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 738    (do not change this comment) */