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 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 #define FONT_AVG_WIDTH(f) ((f)->average_width)
  33
  34 #define CP_DEFAULT 1004
  35 /* Special pseudo-codepages. */
  36 #define CP_8BIT      -1
  37 #define CP_UNICODE   -2
  38 #define CP_UNKNOWN   -3
  39
  40 #define CHECK_W32_FRAME(f, frame)               \
  41   if (NILP (frame))                             \
  42     f = SELECTED_FRAME ();                      \
  43   else                                          \
  44     {                                           \
  45       CHECK_LIVE_FRAME (frame, 0);              \
  46       f = XFRAME (frame);                       \
  47     }                                           \
  48   if (! FRAME_W32_P (f))
  49
  50 /* Indicates whether we are in the readsocket call and the message we
  51    are processing in the current loop */
  52
  53 extern MSG CurMsg;
  54 extern BOOL bUseDflt;
  55
  56 extern struct frame *x_window_to_frame ();
  57
  58 /* Structure recording bitmaps and reference count.
  59    If REFCOUNT is 0 then this record is free to be reused.  */
  60
  61 struct w32_bitmap_record
  62 {
  63   Pixmap pixmap;
  64   char *file;
  65   HINSTANCE hinst; /* Used to load the file */
  66   int refcount;
  67   /* Record some info about this pixmap.  */
  68   int height, width, depth;
  69 };
  70
  71 /* Palette book-keeping stuff for mapping requested colors into the
  72    system palette.  Keep a ref-counted list of requested colors and
  73    regenerate the app palette whenever the requested list changes. */
  74
  75 extern Lisp_Object Vw32_enable_palette;
  76
  77 struct w32_palette_entry {
  78   struct w32_palette_entry * next;
  79   PALETTEENTRY entry;
  80 #if 0
  81   unsigned refcount;
  82 #endif
  83 };
  84
  85 extern void w32_regenerate_palette(struct frame *f);
  86
  87 \f
  88 /* For each display (currently only one on w32), we have a structure that
  89    records information about it.  */
  90
  91 struct w32_display_info
  92 {
  93   /* Chain of all w32_display_info structures.  */
  94   struct w32_display_info *next;
  95
  96   /* The generic display parameters corresponding to this w32 display.  */
  97   struct terminal *terminal;
  98
  99   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 100      The same cons cell also appears in x_display_name_list.  */
 101   Lisp_Object name_list_element;
 102
 103   /* Number of frames that are on this display.  */
 104   int reference_count;
 105
 106   /* Dots per inch of the screen.  */
 107   double resx, resy;
 108
 109   /* Number of planes on this screen.  */
 110   int n_planes;
 111
 112   /* Number of bits per pixel on this screen.  */
 113   int n_cbits;
 114
 115   /* Dimensions of this screen.  */
 116   int height, width;
 117   int height_in,width_in;
 118
 119   /* Mask of things that cause the mouse to be grabbed.  */
 120   int grabbed;
 121
 122   /* Emacs bitmap-id of the default icon bitmap for this frame.
 123      Or -1 if none has been allocated yet.  */
 124   int icon_bitmap_id;
 125
 126   /* The root window of this screen.  */
 127   Window root_window;
 128
 129   /* The cursor to use for vertical scroll bars.  */
 130   Cursor vertical_scroll_bar_cursor;
 131
 132   /* Resource data base */
 133   XrmDatabase xrdb;
 134
 135   /* color palette information.  */
 136   int has_palette;
 137   struct w32_palette_entry * color_list;
 138   unsigned num_colors;
 139   HPALETTE palette;
 140
 141   /* deferred action flags checked when starting frame update.  */
 142   int regen_palette;
 143
 144   /* Keystroke that has been faked by Emacs and will be ignored when
 145      received; value is reset after key is received.  */
 146   int faked_key;
 147
 148   /* Minimum width over all characters in all fonts in font_table.  */
 149   int smallest_char_width;
 150
 151   /* Minimum font height over all fonts in font_table.  */
 152   int smallest_font_height;
 153
 154   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 155   XGCValues *scratch_cursor_gc;
 156
 157   /* These variables describe the range of text currently shown in its
 158      mouse-face, together with the window they apply to. As long as
 159      the mouse stays within this range, we need not redraw anything on
 160      its account.  Rows and columns are glyph matrix positions in
 161      MOUSE_FACE_WINDOW.  */
 162   int mouse_face_beg_row, mouse_face_beg_col;
 163   int mouse_face_beg_x, mouse_face_beg_y;
 164   int mouse_face_end_row, mouse_face_end_col;
 165   int mouse_face_end_x, mouse_face_end_y;
 166   int mouse_face_past_end;
 167   Lisp_Object mouse_face_window;
 168   int mouse_face_face_id;
 169   Lisp_Object mouse_face_overlay;
 170
 171   /* 1 if a mouse motion event came and we didn't handle it right away because
 172      gc was in progress.  */
 173   int mouse_face_deferred_gc;
 174
 175   /* FRAME and X, Y position of mouse when last checked for
 176      highlighting.  X and Y can be negative or out of range for the frame.  */
 177   struct frame *mouse_face_mouse_frame;
 178   int mouse_face_mouse_x, mouse_face_mouse_y;
 179
 180   /* Nonzero means defer mouse-motion highlighting.  */
 181   int mouse_face_defer;
 182
 183   /* Nonzero means that the mouse highlight should not be shown.  */
 184   int mouse_face_hidden;
 185
 186   int mouse_face_image_state;
 187
 188   char *w32_id_name;
 189
 190   /* The number of fonts actually stored in w32_font_table.
 191      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 192      n_fonts <= font_table_size. and font_table[i].name != 0. */
 193   int n_fonts;
 194
 195   /* Pointer to bitmap records.  */
 196   struct w32_bitmap_record *bitmaps;
 197
 198   /* Allocated size of bitmaps field.  */
 199   int bitmaps_size;
 200
 201   /* Last used bitmap index.  */
 202   int bitmaps_last;
 203
 204   /* The frame (if any) which has the window that has keyboard focus.
 205      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 206      that a mere EnterNotify event can set this; if you need to know the
 207      last frame specified in a FocusIn or FocusOut event, use
 208      w32_focus_event_frame.  */
 209   struct frame *w32_focus_frame;
 210
 211   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 212      separate from w32_focus_frame, because whether or not LeaveNotify
 213      events cause us to lose focus depends on whether or not we have
 214      received a FocusIn event for it.  */
 215   struct frame *w32_focus_event_frame;
 216
 217   /* The frame which currently has the visual highlight, and should get
 218      keyboard input (other sorts of input have the frame encoded in the
 219      event).  It points to the focus frame's selected window's
 220      frame.  It differs from w32_focus_frame when we're using a global
 221      minibuffer.  */
 222   struct frame *x_highlight_frame;
 223 };
 224
 225 /* This is a chain of structures for all the displays currently in use.  */
 226 extern struct w32_display_info *x_display_list;
 227 extern struct w32_display_info one_w32_display_info;
 228
 229 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 230    one for each element of w32_display_list and in the same order.
 231    NAME is the name of the frame.
 232    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 233 extern Lisp_Object w32_display_name_list;
 234
 235 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 236 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 237
 238 struct w32_display_info *x_display_info_for_name ();
 239
 240 Lisp_Object display_x_get_resource P_ ((struct w32_display_info *,
 241                                         Lisp_Object, Lisp_Object,
 242                                         Lisp_Object, Lisp_Object));
 243
 244 extern struct w32_display_info *w32_term_init ();
 245 \f
 246 #define PIX_TYPE COLORREF
 247
 248 /* Each W32 frame object points to its own struct w32_display object
 249    in the output_data.w32 field.  The w32_display structure contains all
 250    the information that is specific to W32 windows.  */
 251
 252 /* Put some things in x_output for compatibility.
 253    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 254    diffs between X and w32 code.  */
 255 struct x_output
 256 {
 257 #if 0 /* These are also defined in struct frame.  Use that instead.  */
 258   PIX_TYPE background_pixel;
 259   PIX_TYPE foreground_pixel;
 260 #endif
 261
 262   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 263      frame, or IMPLICIT if we received an EnterNotify.
 264      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 265   int focus_state;
 266
 267 };
 268
 269 enum
 270 {
 271   /* Values for focus_state, used as bit mask.
 272      EXPLICIT means we received a FocusIn for the frame and know it has
 273      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 274      may have the focus if no window manager is running.
 275      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 276   FOCUS_NONE     = 0,
 277   FOCUS_IMPLICIT = 1,
 278   FOCUS_EXPLICIT = 2
 279 };
 280
 281 struct w32_output
 282 {
 283   /* Placeholder for things accessed through output_data.x.  */
 284   struct x_output x_compatible;
 285
 286   /* Menubar "widget" handle.  */
 287   HMENU menubar_widget;
 288
 289   /* Original palette (used to deselect real palette after drawing) */
 290   HPALETTE old_palette;
 291
 292   /* Here are the Graphics Contexts for the default font.  */
 293   XGCValues *cursor_gc;                         /* cursor drawing */
 294
 295   /* The window used for this frame.
 296      May be zero while the frame object is being created
 297      and the window has not yet been created.  */
 298   Window window_desc;
 299
 300   /* The window that is the parent of this window.
 301      Usually this is a window that was made by the window manager,
 302      but it can be the root window, and it can be explicitly specified
 303      (see the explicit_parent field, below).  */
 304   Window parent_desc;
 305
 306   /* Default ASCII font of this frame. */
 307   struct font *font;
 308
 309   /* The baseline offset of the default ASCII font.  */
 310   int baseline_offset;
 311
 312   /* If a fontset is specified for this frame instead of font, this
 313      value contains an ID of the fontset, else -1.  */
 314   int fontset;
 315
 316   /* Pixel values used for various purposes.
 317      border_pixel may be -1 meaning use a gray tile.  */
 318   COLORREF cursor_pixel;
 319   COLORREF border_pixel;
 320   COLORREF mouse_pixel;
 321   COLORREF cursor_foreground_pixel;
 322
 323   /* Foreground color for scroll bars.  A value of -1 means use the
 324      default (black for non-toolkit scroll bars).  */
 325   COLORREF scroll_bar_foreground_pixel;
 326
 327   /* Background color for scroll bars.  A value of -1 means use the
 328      default (background color of the frame for non-toolkit scroll
 329      bars).  */
 330   COLORREF scroll_bar_background_pixel;
 331
 332   /* Descriptor for the cursor in use for this window.  */
 333   Cursor text_cursor;
 334   Cursor nontext_cursor;
 335   Cursor modeline_cursor;
 336   Cursor hand_cursor;
 337   Cursor hourglass_cursor;
 338   Cursor horizontal_drag_cursor;
 339
 340   /* Non-zero means hourglass cursor is currently displayed.  */
 341   unsigned hourglass_p : 1;
 342
 343   /* Non-hourglass cursor that is currently active.  */
 344   Cursor current_cursor;
 345
 346   /* Flag to set when the window needs to be completely repainted.  */
 347   int needs_exposure;
 348
 349   DWORD dwStyle;
 350
 351   /* This is the Emacs structure for the display this frame is on.  */
 352   /* struct w32_display_info *display_info; */
 353
 354   /* Nonzero means our parent is another application's window
 355      and was explicitly specified.  */
 356   char explicit_parent;
 357
 358   /* Nonzero means tried already to make this frame visible.  */
 359   char asked_for_visible;
 360
 361   /* Nonzero means menubar is currently active.  */
 362   char menubar_active;
 363
 364   /* Nonzero means menubar is about to become active, but should be
 365      brought up to date first.  */
 366   volatile char pending_menu_activation;
 367
 368   /* Relief GCs, colors etc.  */
 369   struct relief
 370   {
 371     XGCValues *gc;
 372     unsigned long pixel;
 373     int allocated_p;
 374   }
 375   black_relief, white_relief;
 376
 377   /* The background for which the above relief GCs were set up.
 378      They are changed only when a different background is involved.  */
 379   unsigned long relief_background;
 380 };
 381
 382 extern struct w32_output w32term_display;
 383
 384 /* Return the X output data for frame F.  */
 385 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 386
 387 /* Return the window associated with the frame F.  */
 388 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 389 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 390
 391 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 392 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 393 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 394
 395 /* This gives the w32_display_info structure for the display F is on.  */
 396 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 397 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 398
 399 /* This is the `Display *' which frame F is on.  */
 400 #define FRAME_X_DISPLAY(f) (0)
 401
 402 /* Value is the smallest width of any character in any font on frame F.  */
 403
 404 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 405      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 406
 407 /* Value is the smallest height of any font on frame F.  */
 408
 409 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 410      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 411 \f
 412 /* W32-specific scroll bar stuff.  */
 413
 414 /* We represent scroll bars as lisp vectors.  This allows us to place
 415    references to them in windows without worrying about whether we'll
 416    end up with windows referring to dead scroll bars; the garbage
 417    collector will free it when its time comes.
 418
 419    We use struct scroll_bar as a template for accessing fields of the
 420    vector.  */
 421
 422 struct scroll_bar {
 423
 424   /* These fields are shared by all vectors.  */
 425   EMACS_INT size_from_Lisp_Vector_struct;
 426   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 427
 428   /* The window we're a scroll bar for.  */
 429   Lisp_Object window;
 430
 431   /* The next and previous in the chain of scroll bars in this frame.  */
 432   Lisp_Object next, prev;
 433
 434   /* The window representing this scroll bar.  Since this is a full
 435      32-bit quantity, we store it split into two 32-bit values.  */
 436   Lisp_Object w32_window_low, w32_window_high;
 437
 438   /* Same as above for the widget.  */
 439   Lisp_Object w32_widget_low, w32_widget_high;
 440
 441   /* The position and size of the scroll bar in pixels, relative to the
 442      frame.  */
 443   Lisp_Object top, left, width, height;
 444
 445   /* The starting and ending positions of the handle, relative to the
 446      handle area (i.e. zero is the top position, not
 447      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 448      hasn't been drawn yet.
 449
 450      These are not actually the locations where the beginning and end
 451      are drawn; in order to keep handles from becoming invisible when
 452      editing large files, we establish a minimum height by always
 453      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 454      where they would be normally; the bottom and top are in a
 455      different co-ordinate system.  */
 456   Lisp_Object start, end;
 457
 458   /* If the scroll bar handle is currently being dragged by the user,
 459      this is the number of pixels from the top of the handle to the
 460      place where the user grabbed it.  If the handle isn't currently
 461      being dragged, this is Qnil.  */
 462   Lisp_Object dragging;
 463
 464   /* t if the background of the fringe that is adjacent to a scroll
 465      bar is extended to the gap between the fringe and the bar.  */
 466   Lisp_Object fringe_extended_p;
 467 };
 468
 469 /* The number of elements a vector holding a struct scroll_bar needs.  */
 470 #define SCROLL_BAR_VEC_SIZE                                     \
 471   ((sizeof (struct scroll_bar)                                  \
 472     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 473    / sizeof (Lisp_Object))
 474
 475 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 476 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 477
 478
 479 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 480 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 481
 482 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 483 #define SCROLL_BAR_UNPACK(low, high, int32) \
 484   (XSETINT ((low),   (int32)        & 0xffff), \
 485    XSETINT ((high), ((int32) >> 16) & 0xffff))
 486
 487
 488 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 489 #define SCROLL_BAR_W32_WINDOW(ptr) \
 490   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 491
 492 /* Store a window id in a struct scroll_bar.  */
 493 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 494   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 495
 496 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 497 #define SCROLL_BAR_X_WIDGET(ptr) \
 498   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 499
 500 /* Store a widget id in a struct scroll_bar.  */
 501 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 502   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 503
 504 /* Return the inside width of a vertical scroll bar, given the outside
 505    width.  */
 506 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 507   ((width) \
 508    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 509    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 510    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 511
 512 /* Return the length of the rectangle within which the top of the
 513    handle must stay.  This isn't equivalent to the inside height,
 514    because the scroll bar handle has a minimum height.
 515
 516    This is the real range of motion for the scroll bar, so when we're
 517    scaling buffer positions to scroll bar positions, we use this, not
 518    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 519 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 520   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 521
 522 /* Return the inside height of vertical scroll bar, given the outside
 523    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 524 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 525   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 526
 527
 528 /* Border widths for scroll bars.
 529
 530    Scroll bar windows don't have any borders; their border width is
 531    set to zero, and we redraw borders ourselves.  This makes the code
 532    a bit cleaner, since we don't have to convert between outside width
 533    (used when relating to the rest of the screen) and inside width
 534    (used when sizing and drawing the scroll bar window itself).
 535
 536    The handle moves up and down/back and forth in a rectangle inset
 537    from the edges of the scroll bar.  These are widths by which we
 538    inset the handle boundaries from the scroll bar edges.  */
 539 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 540 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 541 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 542 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 543
 544 /* Minimum lengths for scroll bar handles, in pixels.  */
 545 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 546
 547 /* Trimming off a few pixels from each side prevents
 548    text from glomming up against the scroll bar */
 549 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 550
 551 \f
 552 extern void w32_fill_rect ();
 553 extern void w32_clear_window ();
 554
 555 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 556 do { \
 557     RECT rect; \
 558     rect.left = x; \
 559     rect.top = y; \
 560     rect.right = x + nx; \
 561     rect.bottom = y + ny; \
 562     w32_fill_rect (f,hdc,pix,&rect); \
 563 } while (0)
 564
 565 #define w32_clear_rect(f,hdc,lprect) \
 566   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 567
 568 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 569   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 570
 571 /* Define for earlier versions of Visual C */
 572 #ifndef WM_MOUSEWHEEL
 573 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 574 #endif /* WM_MOUSEWHEEL */
 575 #ifndef MSH_MOUSEWHEEL
 576 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 577 #endif /* MSH_MOUSEWHEEL */
 578 #ifndef WM_XBUTTONDOWN
 579 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 580 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 581 #endif /* WM_XBUTTONDOWN */
 582 #ifndef WM_MOUSEHWHEEL
 583 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 584 #endif /* WM_MOUSEHWHEEL  */
 585 #ifndef WM_APPCOMMAND
 586 #define WM_APPCOMMAND 0x319
 587 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 588 #endif
 589 #ifndef WM_UNICHAR
 590 #define WM_UNICHAR 0x109
 591 #endif
 592 #ifndef UNICODE_NOCHAR
 593 #define UNICODE_NOCHAR 0xFFFF
 594 #endif
 595
 596 #define WM_EMACS_START                 (WM_USER + 1)
 597 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 598 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 599 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 600 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 601 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 602 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 603 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 604 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 605 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 606 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 607 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 608 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 609 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 610 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 611 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 612 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 613 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 614 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 615 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 616 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 617 #define WM_EMACS_END                   (WM_EMACS_START + 20)
 618
 619 #define WND_FONTWIDTH_INDEX    (0)
 620 #define WND_LINEHEIGHT_INDEX   (4)
 621 #define WND_BORDER_INDEX       (8)
 622 #define WND_SCROLLBAR_INDEX    (12)
 623 #define WND_BACKGROUND_INDEX   (16)
 624 #define WND_LAST_INDEX         (20)
 625
 626 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 627
 628 extern DWORD dwWindowsThreadId;
 629 extern HANDLE hWindowsThread;
 630 extern DWORD dwMainThreadId;
 631 extern HANDLE hMainThread;
 632
 633 typedef struct W32Msg {
 634     MSG msg;
 635     DWORD dwModifiers;
 636     RECT rect;
 637 } W32Msg;
 638
 639 /* Structure for recording message when input thread must return a
 640    result that depends on lisp thread to compute.  Lisp thread can
 641    complete deferred messages out of order.  */
 642 typedef struct deferred_msg
 643 {
 644   struct deferred_msg * next;
 645   W32Msg                w32msg;
 646   LRESULT               result;
 647   int                   completed;
 648 } deferred_msg;
 649
 650 extern CRITICAL_SECTION critsect;
 651
 652 extern void init_crit ();
 653 extern void delete_crit ();
 654
 655 extern void signal_quit ();
 656
 657 #define enter_crit() EnterCriticalSection (&critsect)
 658 #define leave_crit() LeaveCriticalSection (&critsect)
 659
 660 extern void select_palette (struct frame * f, HDC hdc);
 661 extern void deselect_palette (struct frame * f, HDC hdc);
 662 extern HDC get_frame_dc (struct frame * f);
 663 extern int release_frame_dc (struct frame * f, HDC hDC);
 664
 665 extern void drain_message_queue ();
 666
 667 extern BOOL get_next_msg ();
 668 extern BOOL post_msg ();
 669 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 670 extern void wait_for_sync ();
 671
 672 extern BOOL parse_button ();
 673
 674 extern void w32_sys_ring_bell (struct frame *f);
 675 extern void x_delete_display (struct w32_display_info *dpyinfo);
 676
 677 /* Keypad command key support.  W32 doesn't have virtual keys defined
 678    for the function keys on the keypad (they are mapped to the standard
 679    fuction keys), so we define our own.  */
 680 #define VK_NUMPAD_BEGIN         0x92
 681 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 682 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 683 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 684 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 685 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 686 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 687 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 688 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 689 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 690 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 691 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 692 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 693
 694 #ifndef VK_LWIN
 695 /* Older compiler environments don't have these defined.  */
 696 #define VK_LWIN                 0x5B
 697 #define VK_RWIN                 0x5C
 698 #define VK_APPS                 0x5D
 699 #endif
 700
 701 /* Support for treating Windows and Apps keys as modifiers.  These
 702    constants must not overlap with any of the dwControlKeyState flags in
 703    KEY_EVENT_RECORD.  */
 704 #define LEFT_WIN_PRESSED       0x8000
 705 #define RIGHT_WIN_PRESSED      0x4000
 706 #define APPS_PRESSED           0x2000
 707
 708 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 709    (even though they are supported on 98 and ME.  */
 710 #ifndef WM_MOUSELEAVE
 711 #define WM_MOUSELEAVE 0x02A3
 712 #define TME_LEAVE 0x00000002;
 713
 714 typedef struct tagTRACKMOUSEEVENT
 715 {
 716   DWORD cbSize;
 717   DWORD dwFlags;
 718   HWND hwndTrack;
 719   DWORD dwHoverTime;
 720 } TRACKMOUSEEVENT;
 721 #endif
 722
 723 struct image;
 724 struct face;
 725
 726 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 727 struct frame * check_x_frame (Lisp_Object);
 728
 729 EXFUN (Fx_display_color_p, 1);
 730 EXFUN (Fx_display_grayscale_p, 1);
 731
 732 typedef DWORD (WINAPI * ClipboardSequence_Proc) ();
 733 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 734     IN HMENU,
 735     IN UINT,
 736     IN UINT_PTR,
 737     IN LPCWSTR);
 738
 739 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 740    (do not change this comment) */