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, or (at your option)
  10 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; see the file COPYING.  If not, write to
  19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22 /* Added by Kevin Gallo */
  23
  24 #include "w32gui.h"
  25
  26 \f
  27 #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
  28 #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
  29
  30 #define FONT_WIDTH(f)     ((f)->max_width)
  31 #define FONT_HEIGHT(f)    ((f)->height)
  32 #define FONT_BASE(f)      ((f)->ascent)
  33 #define FONT_DESCENT(f)   ((f)->descent)
  34 #define FONT_AVG_WIDTH(f) ((f)->average_width)
  35
  36 #define CP_DEFAULT 1004
  37 /* Special pseudo-codepages. */
  38 #define CP_8BIT      -1
  39 #define CP_UNICODE   -2
  40 #define CP_UNKNOWN   -3
  41
  42 #define CHECK_W32_FRAME(f, frame)               \
  43   if (NILP (frame))                             \
  44     f = SELECTED_FRAME ();                      \
  45   else                                          \
  46     {                                           \
  47       CHECK_LIVE_FRAME (frame, 0);              \
  48       f = XFRAME (frame);                       \
  49     }                                           \
  50   if (! FRAME_W32_P (f))
  51
  52 /* Indicates whether we are in the readsocket call and the message we
  53    are processing in the current loop */
  54
  55 extern MSG CurMsg;
  56 extern BOOL bUseDflt;
  57
  58 extern struct frame *x_window_to_frame ();
  59
  60 /* Structure recording bitmaps and reference count.
  61    If REFCOUNT is 0 then this record is free to be reused.  */
  62
  63 struct w32_bitmap_record
  64 {
  65   Pixmap pixmap;
  66   char *file;
  67   HINSTANCE hinst; /* Used to load the file */
  68   int refcount;
  69   /* Record some info about this pixmap.  */
  70   int height, width, depth;
  71 };
  72
  73 /* Palette book-keeping stuff for mapping requested colors into the
  74    system palette.  Keep a ref-counted list of requested colors and
  75    regenerate the app palette whenever the requested list changes. */
  76
  77 extern Lisp_Object Vw32_enable_palette;
  78
  79 struct w32_palette_entry {
  80   struct w32_palette_entry * next;
  81   PALETTEENTRY entry;
  82 #if 0
  83   unsigned refcount;
  84 #endif
  85 };
  86
  87 extern void w32_regenerate_palette(struct frame *f);
  88
  89 \f
  90 /* For each display (currently only one on w32), we have a structure that
  91    records information about it.  */
  92
  93 struct w32_display_info
  94 {
  95   /* Chain of all w32_display_info structures.  */
  96   struct w32_display_info *next;
  97
  98   /* The generic display parameters corresponding to this w32 display.  */
  99   struct terminal *terminal;
 100
 101   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 102      The same cons cell also appears in x_display_name_list.  */
 103   Lisp_Object name_list_element;
 104
 105   /* Number of frames that are on this display.  */
 106   int reference_count;
 107
 108   /* Dots per inch of the screen.  */
 109   double resx, resy;
 110
 111   /* Number of planes on this screen.  */
 112   int n_planes;
 113
 114   /* Number of bits per pixel on this screen.  */
 115   int n_cbits;
 116
 117   /* Dimensions of this screen.  */
 118   int height, width;
 119   int height_in,width_in;
 120
 121   /* Mask of things that cause the mouse to be grabbed.  */
 122   int grabbed;
 123
 124   /* Emacs bitmap-id of the default icon bitmap for this frame.
 125      Or -1 if none has been allocated yet.  */
 126   int icon_bitmap_id;
 127
 128   /* The root window of this screen.  */
 129   Window root_window;
 130
 131   /* The cursor to use for vertical scroll bars.  */
 132   Cursor vertical_scroll_bar_cursor;
 133
 134   /* Resource data base */
 135   XrmDatabase xrdb;
 136
 137   /* color palette information.  */
 138   int has_palette;
 139   struct w32_palette_entry * color_list;
 140   unsigned num_colors;
 141   HPALETTE palette;
 142
 143   /* deferred action flags checked when starting frame update.  */
 144   int regen_palette;
 145
 146   /* Keystroke that has been faked by Emacs and will be ignored when
 147      received; value is reset after key is received.  */
 148   int faked_key;
 149
 150 #if OLD_FONT
 151   /* A table of all the fonts we have already loaded.  */
 152   struct font_info *font_table;
 153
 154   /* The current capacity of font_table.  */
 155   int font_table_size;
 156 #endif
 157
 158   /* Minimum width over all characters in all fonts in font_table.  */
 159   int smallest_char_width;
 160
 161   /* Minimum font height over all fonts in font_table.  */
 162   int smallest_font_height;
 163
 164   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 165   XGCValues *scratch_cursor_gc;
 166
 167   /* These variables describe the range of text currently shown in its
 168      mouse-face, together with the window they apply to. As long as
 169      the mouse stays within this range, we need not redraw anything on
 170      its account.  Rows and columns are glyph matrix positions in
 171      MOUSE_FACE_WINDOW.  */
 172   int mouse_face_beg_row, mouse_face_beg_col;
 173   int mouse_face_beg_x, mouse_face_beg_y;
 174   int mouse_face_end_row, mouse_face_end_col;
 175   int mouse_face_end_x, mouse_face_end_y;
 176   int mouse_face_past_end;
 177   Lisp_Object mouse_face_window;
 178   int mouse_face_face_id;
 179   Lisp_Object mouse_face_overlay;
 180
 181   /* 1 if a mouse motion event came and we didn't handle it right away because
 182      gc was in progress.  */
 183   int mouse_face_deferred_gc;
 184
 185   /* FRAME and X, Y position of mouse when last checked for
 186      highlighting.  X and Y can be negative or out of range for the frame.  */
 187   struct frame *mouse_face_mouse_frame;
 188   int mouse_face_mouse_x, mouse_face_mouse_y;
 189
 190   /* Nonzero means defer mouse-motion highlighting.  */
 191   int mouse_face_defer;
 192
 193   /* Nonzero means that the mouse highlight should not be shown.  */
 194   int mouse_face_hidden;
 195
 196   int mouse_face_image_state;
 197
 198   char *w32_id_name;
 199
 200   /* The number of fonts actually stored in w32_font_table.
 201      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 202      n_fonts <= font_table_size. and font_table[i].name != 0. */
 203   int n_fonts;
 204
 205   /* Pointer to bitmap records.  */
 206   struct w32_bitmap_record *bitmaps;
 207
 208   /* Allocated size of bitmaps field.  */
 209   int bitmaps_size;
 210
 211   /* Last used bitmap index.  */
 212   int bitmaps_last;
 213
 214   /* The frame (if any) which has the window that has keyboard focus.
 215      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 216      that a mere EnterNotify event can set this; if you need to know the
 217      last frame specified in a FocusIn or FocusOut event, use
 218      w32_focus_event_frame.  */
 219   struct frame *w32_focus_frame;
 220
 221   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 222      separate from w32_focus_frame, because whether or not LeaveNotify
 223      events cause us to lose focus depends on whether or not we have
 224      received a FocusIn event for it.  */
 225   struct frame *w32_focus_event_frame;
 226
 227   /* The frame which currently has the visual highlight, and should get
 228      keyboard input (other sorts of input have the frame encoded in the
 229      event).  It points to the focus frame's selected window's
 230      frame.  It differs from w32_focus_frame when we're using a global
 231      minibuffer.  */
 232   struct frame *x_highlight_frame;
 233 };
 234
 235 /* This is a chain of structures for all the displays currently in use.  */
 236 extern struct w32_display_info *x_display_list;
 237 extern struct w32_display_info one_w32_display_info;
 238
 239 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 240    one for each element of w32_display_list and in the same order.
 241    NAME is the name of the frame.
 242    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 243 extern Lisp_Object w32_display_name_list;
 244
 245 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 246 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 247
 248 struct w32_display_info *x_display_info_for_name ();
 249
 250 Lisp_Object display_x_get_resource P_ ((struct w32_display_info *,
 251                                         Lisp_Object, Lisp_Object,
 252                                         Lisp_Object, Lisp_Object));
 253
 254 extern struct w32_display_info *w32_term_init ();
 255 \f
 256 #if OLD_FONT
 257 extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int));
 258 extern struct font_info *w32_get_font_info (), *w32_query_font ();
 259 extern void w32_cache_char_metrics (XFontStruct *font);
 260 extern void w32_find_ccl_program();
 261 extern Lisp_Object x_get_font_repertory P_ ((struct frame *,
 262                                              struct font_info *));
 263 #endif
 264 \f
 265 #define PIX_TYPE COLORREF
 266
 267 /* Each W32 frame object points to its own struct w32_display object
 268    in the output_data.w32 field.  The w32_display structure contains all
 269    the information that is specific to W32 windows.  */
 270
 271 /* Put some things in x_output for compatibility.
 272    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 273    diffs between X and w32 code.  */
 274 struct x_output
 275 {
 276 #if 0 /* These are also defined in struct frame.  Use that instead.  */
 277   PIX_TYPE background_pixel;
 278   PIX_TYPE foreground_pixel;
 279 #endif
 280
 281   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 282      frame, or IMPLICIT if we received an EnterNotify.
 283      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 284   int focus_state;
 285
 286 };
 287
 288 enum
 289 {
 290   /* Values for focus_state, used as bit mask.
 291      EXPLICIT means we received a FocusIn for the frame and know it has
 292      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 293      may have the focus if no window manager is running.
 294      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 295   FOCUS_NONE     = 0,
 296   FOCUS_IMPLICIT = 1,
 297   FOCUS_EXPLICIT = 2
 298 };
 299
 300 struct w32_output
 301 {
 302   /* Placeholder for things accessed through output_data.x.  */
 303   struct x_output x_compatible;
 304
 305   /* Menubar "widget" handle.  */
 306   HMENU menubar_widget;
 307
 308   /* Original palette (used to deselect real palette after drawing) */
 309   HPALETTE old_palette;
 310
 311   /* Here are the Graphics Contexts for the default font.  */
 312   XGCValues *cursor_gc;                         /* cursor drawing */
 313
 314   /* The window used for this frame.
 315      May be zero while the frame object is being created
 316      and the window has not yet been created.  */
 317   Window window_desc;
 318
 319   /* The window that is the parent of this window.
 320      Usually this is a window that was made by the window manager,
 321      but it can be the root window, and it can be explicitly specified
 322      (see the explicit_parent field, below).  */
 323   Window parent_desc;
 324
 325   /* Default ASCII font of this frame. */
 326 #if OLD_FONT
 327   XFontStruct *font;
 328 #endif
 329   struct font *font;
 330
 331   /* The baseline offset of the default ASCII font.  */
 332   int baseline_offset;
 333
 334   /* If a fontset is specified for this frame instead of font, this
 335      value contains an ID of the fontset, else -1.  */
 336   int fontset;
 337
 338   /* Pixel values used for various purposes.
 339      border_pixel may be -1 meaning use a gray tile.  */
 340   COLORREF cursor_pixel;
 341   COLORREF border_pixel;
 342   COLORREF mouse_pixel;
 343   COLORREF cursor_foreground_pixel;
 344
 345   /* Foreground color for scroll bars.  A value of -1 means use the
 346      default (black for non-toolkit scroll bars).  */
 347   COLORREF scroll_bar_foreground_pixel;
 348
 349   /* Background color for scroll bars.  A value of -1 means use the
 350      default (background color of the frame for non-toolkit scroll
 351      bars).  */
 352   COLORREF scroll_bar_background_pixel;
 353
 354   /* Descriptor for the cursor in use for this window.  */
 355   Cursor text_cursor;
 356   Cursor nontext_cursor;
 357   Cursor modeline_cursor;
 358   Cursor hand_cursor;
 359   Cursor hourglass_cursor;
 360   Cursor horizontal_drag_cursor;
 361
 362   /* Non-zero means hourglass cursor is currently displayed.  */
 363   unsigned hourglass_p : 1;
 364
 365   /* Non-hourglass cursor that is currently active.  */
 366   Cursor current_cursor;
 367
 368   /* Flag to set when the window needs to be completely repainted.  */
 369   int needs_exposure;
 370
 371   DWORD dwStyle;
 372
 373   /* This is the Emacs structure for the display this frame is on.  */
 374   /* struct w32_display_info *display_info; */
 375
 376   /* Nonzero means our parent is another application's window
 377      and was explicitly specified.  */
 378   char explicit_parent;
 379
 380   /* Nonzero means tried already to make this frame visible.  */
 381   char asked_for_visible;
 382
 383   /* Nonzero means menubar is currently active.  */
 384   char menubar_active;
 385
 386   /* Nonzero means menubar is about to become active, but should be
 387      brought up to date first.  */
 388   volatile char pending_menu_activation;
 389
 390   /* Relief GCs, colors etc.  */
 391   struct relief
 392   {
 393     XGCValues *gc;
 394     unsigned long pixel;
 395     int allocated_p;
 396   }
 397   black_relief, white_relief;
 398
 399   /* The background for which the above relief GCs were set up.
 400      They are changed only when a different background is involved.  */
 401   unsigned long relief_background;
 402 };
 403
 404 extern struct w32_output w32term_display;
 405
 406 /* Return the X output data for frame F.  */
 407 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 408
 409 /* Return the window associated with the frame F.  */
 410 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 411 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 412
 413 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 414 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 415 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 416
 417 /* This gives the w32_display_info structure for the display F is on.  */
 418 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 419 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 420
 421 /* This is the `Display *' which frame F is on.  */
 422 #define FRAME_X_DISPLAY(f) (0)
 423
 424 #if OLD_FONT
 425 /* This is the 'font_info *' which frame F has.  */
 426 #define FRAME_W32_FONT_TABLE(f) (FRAME_W32_DISPLAY_INFO (f)->font_table)
 427 #endif
 428
 429 /* Value is the smallest width of any character in any font on frame F.  */
 430
 431 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 432      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 433
 434 /* Value is the smallest height of any font on frame F.  */
 435
 436 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 437      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 438 \f
 439 /* W32-specific scroll bar stuff.  */
 440
 441 /* We represent scroll bars as lisp vectors.  This allows us to place
 442    references to them in windows without worrying about whether we'll
 443    end up with windows referring to dead scroll bars; the garbage
 444    collector will free it when its time comes.
 445
 446    We use struct scroll_bar as a template for accessing fields of the
 447    vector.  */
 448
 449 struct scroll_bar {
 450
 451   /* These fields are shared by all vectors.  */
 452   EMACS_INT size_from_Lisp_Vector_struct;
 453   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 454
 455   /* The window we're a scroll bar for.  */
 456   Lisp_Object window;
 457
 458   /* The next and previous in the chain of scroll bars in this frame.  */
 459   Lisp_Object next, prev;
 460
 461   /* The window representing this scroll bar.  Since this is a full
 462      32-bit quantity, we store it split into two 32-bit values.  */
 463   Lisp_Object w32_window_low, w32_window_high;
 464
 465   /* Same as above for the widget.  */
 466   Lisp_Object w32_widget_low, w32_widget_high;
 467
 468   /* The position and size of the scroll bar in pixels, relative to the
 469      frame.  */
 470   Lisp_Object top, left, width, height;
 471
 472   /* The starting and ending positions of the handle, relative to the
 473      handle area (i.e. zero is the top position, not
 474      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 475      hasn't been drawn yet.
 476
 477      These are not actually the locations where the beginning and end
 478      are drawn; in order to keep handles from becoming invisible when
 479      editing large files, we establish a minimum height by always
 480      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 481      where they would be normally; the bottom and top are in a
 482      different co-ordinate system.  */
 483   Lisp_Object start, end;
 484
 485   /* If the scroll bar handle is currently being dragged by the user,
 486      this is the number of pixels from the top of the handle to the
 487      place where the user grabbed it.  If the handle isn't currently
 488      being dragged, this is Qnil.  */
 489   Lisp_Object dragging;
 490
 491   /* t if the background of the fringe that is adjacent to a scroll
 492      bar is extended to the gap between the fringe and the bar.  */
 493   Lisp_Object fringe_extended_p;
 494 };
 495
 496 /* The number of elements a vector holding a struct scroll_bar needs.  */
 497 #define SCROLL_BAR_VEC_SIZE                                     \
 498   ((sizeof (struct scroll_bar)                                  \
 499     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 500    / sizeof (Lisp_Object))
 501
 502 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 503 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 504
 505
 506 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 507 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 508
 509 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 510 #define SCROLL_BAR_UNPACK(low, high, int32) \
 511   (XSETINT ((low),   (int32)        & 0xffff), \
 512    XSETINT ((high), ((int32) >> 16) & 0xffff))
 513
 514
 515 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 516 #define SCROLL_BAR_W32_WINDOW(ptr) \
 517   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 518
 519 /* Store a window id in a struct scroll_bar.  */
 520 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 521   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 522
 523 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 524 #define SCROLL_BAR_X_WIDGET(ptr) \
 525   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 526
 527 /* Store a widget id in a struct scroll_bar.  */
 528 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 529   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 530
 531 /* Return the inside width of a vertical scroll bar, given the outside
 532    width.  */
 533 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 534   ((width) \
 535    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 536    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 537    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 538
 539 /* Return the length of the rectangle within which the top of the
 540    handle must stay.  This isn't equivalent to the inside height,
 541    because the scroll bar handle has a minimum height.
 542
 543    This is the real range of motion for the scroll bar, so when we're
 544    scaling buffer positions to scroll bar positions, we use this, not
 545    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 546 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 547   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 548
 549 /* Return the inside height of vertical scroll bar, given the outside
 550    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 551 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 552   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 553
 554
 555 /* Border widths for scroll bars.
 556
 557    Scroll bar windows don't have any borders; their border width is
 558    set to zero, and we redraw borders ourselves.  This makes the code
 559    a bit cleaner, since we don't have to convert between outside width
 560    (used when relating to the rest of the screen) and inside width
 561    (used when sizing and drawing the scroll bar window itself).
 562
 563    The handle moves up and down/back and forth in a rectangle inset
 564    from the edges of the scroll bar.  These are widths by which we
 565    inset the handle boundaries from the scroll bar edges.  */
 566 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 567 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 568 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 569 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 570
 571 /* Minimum lengths for scroll bar handles, in pixels.  */
 572 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 573
 574 /* Trimming off a few pixels from each side prevents
 575    text from glomming up against the scroll bar */
 576 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 577
 578 \f
 579 extern void w32_fill_rect ();
 580 extern void w32_clear_window ();
 581
 582 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 583 do { \
 584     RECT rect; \
 585     rect.left = x; \
 586     rect.top = y; \
 587     rect.right = x + nx; \
 588     rect.bottom = y + ny; \
 589     w32_fill_rect (f,hdc,pix,&rect); \
 590 } while (0)
 591
 592 #define w32_clear_rect(f,hdc,lprect) \
 593   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 594
 595 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 596   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 597
 598 #if OLD_FONT
 599 extern struct font_info *w32_load_font ();
 600 extern void w32_unload_font ();
 601 #endif
 602
 603 /* Define for earlier versions of Visual C */
 604 #ifndef WM_MOUSEWHEEL
 605 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 606 #endif /* WM_MOUSEWHEEL */
 607 #ifndef MSH_MOUSEWHEEL
 608 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 609 #endif /* MSH_MOUSEWHEEL */
 610 #ifndef WM_XBUTTONDOWN
 611 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 612 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 613 #endif /* WM_XBUTTONDOWN */
 614 #ifndef WM_MOUSEHWHEEL
 615 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 616 #endif /* WM_MOUSEHWHEEL  */
 617 #ifndef WM_APPCOMMAND
 618 #define WM_APPCOMMAND 0x319
 619 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 620 #endif
 621 #ifndef WM_UNICHAR
 622 #define WM_UNICHAR 0x109
 623 #endif
 624 #ifndef UNICODE_NOCHAR
 625 #define UNICODE_NOCHAR 0xFFFF
 626 #endif
 627
 628 #define WM_EMACS_START                 (WM_USER + 1)
 629 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 630 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 631 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 632 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 633 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 634 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 635 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 636 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 637 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 638 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 639 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 640 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 641 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 642 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 643 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 644 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 645 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 646 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 647 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 648 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 649 #define WM_EMACS_END                   (WM_EMACS_START + 20)
 650
 651 #define WND_FONTWIDTH_INDEX    (0)
 652 #define WND_LINEHEIGHT_INDEX   (4)
 653 #define WND_BORDER_INDEX       (8)
 654 #define WND_SCROLLBAR_INDEX    (12)
 655 #define WND_BACKGROUND_INDEX   (16)
 656 #define WND_LAST_INDEX         (20)
 657
 658 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 659
 660 extern DWORD dwWindowsThreadId;
 661 extern HANDLE hWindowsThread;
 662 extern DWORD dwMainThreadId;
 663 extern HANDLE hMainThread;
 664
 665 typedef struct W32Msg {
 666     MSG msg;
 667     DWORD dwModifiers;
 668     RECT rect;
 669 } W32Msg;
 670
 671 /* Structure for recording message when input thread must return a
 672    result that depends on lisp thread to compute.  Lisp thread can
 673    complete deferred messages out of order.  */
 674 typedef struct deferred_msg
 675 {
 676   struct deferred_msg * next;
 677   W32Msg                w32msg;
 678   LRESULT               result;
 679   int                   completed;
 680 } deferred_msg;
 681
 682 extern CRITICAL_SECTION critsect;
 683
 684 extern void init_crit ();
 685 extern void delete_crit ();
 686
 687 extern void signal_quit ();
 688
 689 #define enter_crit() EnterCriticalSection (&critsect)
 690 #define leave_crit() LeaveCriticalSection (&critsect)
 691
 692 extern void select_palette (struct frame * f, HDC hdc);
 693 extern void deselect_palette (struct frame * f, HDC hdc);
 694 extern HDC get_frame_dc (struct frame * f);
 695 extern int release_frame_dc (struct frame * f, HDC hDC);
 696
 697 extern void drain_message_queue ();
 698
 699 extern BOOL get_next_msg ();
 700 extern BOOL post_msg ();
 701 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 702 extern void wait_for_sync ();
 703
 704 extern BOOL parse_button ();
 705
 706 extern void w32_sys_ring_bell (struct frame *f);
 707 extern void x_delete_display (struct w32_display_info *dpyinfo);
 708
 709 /* Keypad command key support.  W32 doesn't have virtual keys defined
 710    for the function keys on the keypad (they are mapped to the standard
 711    fuction keys), so we define our own.  */
 712 #define VK_NUMPAD_BEGIN         0x92
 713 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 714 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 715 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 716 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 717 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 718 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 719 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 720 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 721 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 722 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 723 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 724 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 725
 726 #ifndef VK_LWIN
 727 /* Older compiler environments don't have these defined.  */
 728 #define VK_LWIN                 0x5B
 729 #define VK_RWIN                 0x5C
 730 #define VK_APPS                 0x5D
 731 #endif
 732
 733 /* Support for treating Windows and Apps keys as modifiers.  These
 734    constants must not overlap with any of the dwControlKeyState flags in
 735    KEY_EVENT_RECORD.  */
 736 #define LEFT_WIN_PRESSED       0x8000
 737 #define RIGHT_WIN_PRESSED      0x4000
 738 #define APPS_PRESSED           0x2000
 739
 740 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 741    (even though they are supported on 98 and ME.  */
 742 #ifndef WM_MOUSELEAVE
 743 #define WM_MOUSELEAVE 0x02A3
 744 #define TME_LEAVE 0x00000002;
 745
 746 typedef struct tagTRACKMOUSEEVENT
 747 {
 748   DWORD cbSize;
 749   DWORD dwFlags;
 750   HWND hwndTrack;
 751   DWORD dwHoverTime;
 752 } TRACKMOUSEEVENT;
 753 #endif
 754
 755 struct image;
 756 struct face;
 757
 758 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 759 struct frame * check_x_frame (Lisp_Object);
 760
 761 EXFUN (Fx_display_color_p, 1);
 762 EXFUN (Fx_display_grayscale_p, 1);
 763
 764 #define FONT_TYPE_FOR_UNIBYTE(font, ch)                 \
 765   ((font)->bdf ? BDF_1D_FONT : ANSI_FONT)
 766
 767 #define FONT_TYPE_FOR_MULTIBYTE(font, ch)               \
 768   (!(font)->bdf                                         \
 769    ? UNICODE_FONT                                       \
 770    : ((CHARSET_DIMENSION (CHAR_CHARSET ((ch))) == 1)    \
 771       ? BDF_1D_FONT : BDF_2D_FONT))
 772
 773 typedef DWORD (WINAPI * ClipboardSequence_Proc) ();
 774 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 775     IN HMENU,
 776     IN UINT,
 777     IN UINT_PTR,
 778     IN LPCWSTR);
 779
 780 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 781    (do not change this comment) */