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 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 2, 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)       \
  31   ((f)->bdf ? (f)->bdf->width : (f)->tm.tmAveCharWidth)
  32 #define FONT_HEIGHT(f)      \
  33    ((f)->bdf ? (f)->bdf->height : (f)->tm.tmHeight)
  34 #define FONT_BASE(f)        \
  35   ((f)->bdf ? (f)->bdf->ury : (f)->tm.tmAscent)
  36 #define FONT_DESCENT(f)     \
  37   ((f)->bdf ? -((f)->bdf->lly) : (f)->tm.tmDescent)
  38 #define FONT_MAX_WIDTH(f)   \
  39   ((f)->bdf ? (f)->bdf->width : (f)->tm.tmMaxCharWidth)
  40
  41 #define CP_DEFAULT 1004
  42 /* Special pseudo-codepages. */
  43 #define CP_8BIT      -1
  44 #define CP_UNICODE   -2
  45 #define CP_UNKNOWN   -3
  46
  47 #define CHECK_W32_FRAME(f, frame)               \
  48   if (NILP (frame))                             \
  49     f = SELECTED_FRAME ();                      \
  50   else                                          \
  51     {                                           \
  52       CHECK_LIVE_FRAME (frame, 0);              \
  53       f = XFRAME (frame);                       \
  54     }                                           \
  55   if (! FRAME_W32_P (f))
  56
  57 /* Indicates whether we are in the readsocket call and the message we
  58    are processing in the current loop */
  59
  60 extern MSG CurMsg;
  61 extern BOOL bUseDflt;
  62
  63 extern struct frame *x_window_to_frame ();
  64
  65 /* Structure recording bitmaps and reference count.
  66    If REFCOUNT is 0 then this record is free to be reused.  */
  67
  68 struct w32_bitmap_record
  69 {
  70   Pixmap pixmap;
  71   char *file;
  72   HINSTANCE hinst; /* Used to load the file */
  73   int refcount;
  74   /* Record some info about this pixmap.  */
  75   int height, width, depth;
  76 };
  77
  78 /* Palette book-keeping stuff for mapping requested colors into the
  79    system palette.  Keep a ref-counted list of requested colors and
  80    regenerate the app palette whenever the requested list changes. */
  81
  82 extern Lisp_Object Vw32_enable_palette;
  83
  84 struct w32_palette_entry {
  85   struct w32_palette_entry * next;
  86   PALETTEENTRY entry;
  87 #if 0
  88   unsigned refcount;
  89 #endif
  90 };
  91
  92 extern void w32_regenerate_palette(struct frame *f);
  93
  94 \f
  95 /* For each display (currently only one on w32), we have a structure that
  96    records information about it.  */
  97
  98 struct w32_display_info
  99 {
 100   /* Chain of all w32_display_info structures.  */
 101   struct w32_display_info *next;
 102
 103   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 104      The same cons cell also appears in x_display_name_list.  */
 105   Lisp_Object name_list_element;
 106
 107   /* Number of frames that are on this display.  */
 108   int reference_count;
 109
 110   /* Dots per inch of the screen.  */
 111   double resx, resy;
 112
 113   /* Number of planes on this screen.  */
 114   int n_planes;
 115
 116   /* Number of bits per pixel on this screen.  */
 117   int n_cbits;
 118
 119   /* Dimensions of this screen.  */
 120   int height, width;
 121   int height_in,width_in;
 122
 123   /* Mask of things that cause the mouse to be grabbed.  */
 124   int grabbed;
 125
 126   /* Emacs bitmap-id of the default icon bitmap for this frame.
 127      Or -1 if none has been allocated yet.  */
 128   int icon_bitmap_id;
 129
 130   /* The root window of this screen.  */
 131   Window root_window;
 132
 133   /* The cursor to use for vertical scroll bars.  */
 134   Cursor vertical_scroll_bar_cursor;
 135
 136   /* Resource data base */
 137   XrmDatabase xrdb;
 138
 139   /* color palette information.  */
 140   int has_palette;
 141   struct w32_palette_entry * color_list;
 142   unsigned num_colors;
 143   HPALETTE palette;
 144
 145   /* deferred action flags checked when starting frame update.  */
 146   int regen_palette;
 147
 148   /* Keystroke that has been faked by Emacs and will be ignored when
 149      received; value is reset after key is received.  */
 150   int faked_key;
 151
 152   /* A table of all the fonts we have already loaded.  */
 153   struct font_info *font_table;
 154
 155   /* The current capacity of font_table.  */
 156   int font_table_size;
 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 iff 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   /* Cache of images.  */
 235   struct image_cache *image_cache;
 236 };
 237
 238 /* This is a chain of structures for all the displays currently in use.  */
 239 extern struct w32_display_info *x_display_list;
 240 extern struct w32_display_info one_w32_display_info;
 241
 242 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 243    one for each element of w32_display_list and in the same order.
 244    NAME is the name of the frame.
 245    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 246 extern Lisp_Object w32_display_name_list;
 247
 248 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 249 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 250
 251 /* A flag to control how to display unibyte 8-bit character.  */
 252 extern int unibyte_display_via_language_environment;
 253
 254 struct w32_display_info *x_display_info_for_name ();
 255
 256 Lisp_Object display_x_get_resource P_ ((struct w32_display_info *,
 257                                         Lisp_Object, Lisp_Object,
 258                                         Lisp_Object, Lisp_Object));
 259
 260 extern struct w32_display_info *w32_term_init ();
 261 \f
 262 extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int));
 263 extern struct font_info *w32_get_font_info (), *w32_query_font ();
 264 extern void w32_cache_char_metrics (XFontStruct *font);
 265 extern void w32_find_ccl_program();
 266 \f
 267 #define PIX_TYPE COLORREF
 268
 269 /* Each W32 frame object points to its own struct w32_display object
 270    in the output_data.w32 field.  The w32_display structure contains all
 271    the information that is specific to W32 windows.  */
 272
 273 /* Put some things in x_output for compatibility.
 274    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 275    diffs between X and w32 code.  */
 276 struct x_output
 277 {
 278   PIX_TYPE background_pixel;
 279   PIX_TYPE foreground_pixel;
 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   XFontStruct *font;
 327
 328   /* The baseline offset of the default ASCII font.  */
 329   int baseline_offset;
 330
 331   /* If a fontset is specified for this frame instead of font, this
 332      value contains an ID of the fontset, else -1.  */
 333   int fontset;
 334
 335   /* Pixel values used for various purposes.
 336      border_pixel may be -1 meaning use a gray tile.  */
 337   COLORREF cursor_pixel;
 338   COLORREF border_pixel;
 339   COLORREF mouse_pixel;
 340   COLORREF cursor_foreground_pixel;
 341
 342   /* Foreground color for scroll bars.  A value of -1 means use the
 343      default (black for non-toolkit scroll bars).  */
 344   COLORREF scroll_bar_foreground_pixel;
 345
 346   /* Background color for scroll bars.  A value of -1 means use the
 347      default (background color of the frame for non-toolkit scroll
 348      bars).  */
 349   COLORREF scroll_bar_background_pixel;
 350
 351   /* Descriptor for the cursor in use for this window.  */
 352   Cursor text_cursor;
 353   Cursor nontext_cursor;
 354   Cursor modeline_cursor;
 355   Cursor hand_cursor;
 356   Cursor hourglass_cursor;
 357   Cursor horizontal_drag_cursor;
 358
 359   /* Window whose cursor is hourglass_cursor.  This window is
 360      temporarily mapped to display an hourglass cursor.  */
 361   Window hourglass_window;
 362
 363   /* Non-zero means hourglass cursor is currently displayed.  */
 364   unsigned hourglass_p : 1;
 365
 366   /* Flag to set when the window needs to be completely repainted.  */
 367   int needs_exposure;
 368
 369   DWORD dwStyle;
 370
 371   /* This is the Emacs structure for the display this frame is on.  */
 372   /* struct w32_display_info *display_info; */
 373
 374   /* Nonzero means our parent is another application's window
 375      and was explicitly specified.  */
 376   char explicit_parent;
 377
 378   /* Nonzero means tried already to make this frame visible.  */
 379   char asked_for_visible;
 380
 381   /* Nonzero means menubar is currently active.  */
 382   char menubar_active;
 383
 384   /* Nonzero means a menu command is being processed.  */
 385   char menu_command_in_progress;
 386
 387   /* Nonzero means menubar is about to become active, but should be
 388      brought up to date first.  */
 389   volatile char pending_menu_activation;
 390
 391   /* Relief GCs, colors etc.  */
 392   struct relief
 393   {
 394     XGCValues *gc;
 395     unsigned long pixel;
 396     int allocated_p;
 397   }
 398   black_relief, white_relief;
 399
 400   /* The background for which the above relief GCs were set up.
 401      They are changed only when a different background is involved.  */
 402   unsigned long relief_background;
 403 };
 404
 405 extern struct w32_output w32term_display;
 406
 407 /* Return the X output data for frame F.  */
 408 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 409
 410 /* Return the window associated with the frame F.  */
 411 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 412 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 413
 414 #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel)
 415 #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel)
 416 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 417 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 418 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 419
 420 /* This gives the w32_display_info structure for the display F is on.  */
 421 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 422 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 423
 424 /* This is the `Display *' which frame F is on.  */
 425 #define FRAME_X_DISPLAY(f) (0)
 426
 427 /* This is the 'font_info *' which frame F has.  */
 428 #define FRAME_W32_FONT_TABLE(f) (FRAME_W32_DISPLAY_INFO (f)->font_table)
 429
 430 /* Value is the smallest width of any character in any font on frame F.  */
 431
 432 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 433      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 434
 435 /* Value is the smallest height of any font on frame F.  */
 436
 437 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 438      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 439
 440 /* Return a pointer to the image cache of frame F.  */
 441
 442 #define FRAME_X_IMAGE_CACHE(F) FRAME_W32_DISPLAY_INFO ((F))->image_cache
 443
 444 \f
 445 /* W32-specific scroll bar stuff.  */
 446
 447 /* We represent scroll bars as lisp vectors.  This allows us to place
 448    references to them in windows without worrying about whether we'll
 449    end up with windows referring to dead scroll bars; the garbage
 450    collector will free it when its time comes.
 451
 452    We use struct scroll_bar as a template for accessing fields of the
 453    vector.  */
 454
 455 struct scroll_bar {
 456
 457   /* These fields are shared by all vectors.  */
 458   EMACS_INT size_from_Lisp_Vector_struct;
 459   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 460
 461   /* The window we're a scroll bar for.  */
 462   Lisp_Object window;
 463
 464   /* The next and previous in the chain of scroll bars in this frame.  */
 465   Lisp_Object next, prev;
 466
 467   /* The window representing this scroll bar.  Since this is a full
 468      32-bit quantity, we store it split into two 32-bit values.  */
 469   Lisp_Object w32_window_low, w32_window_high;
 470
 471   /* Same as above for the widget.  */
 472   Lisp_Object w32_widget_low, w32_widget_high;
 473
 474   /* The position and size of the scroll bar in pixels, relative to the
 475      frame.  */
 476   Lisp_Object top, left, width, height;
 477
 478   /* The starting and ending positions of the handle, relative to the
 479      handle area (i.e. zero is the top position, not
 480      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 481      hasn't been drawn yet.
 482
 483      These are not actually the locations where the beginning and end
 484      are drawn; in order to keep handles from becoming invisible when
 485      editing large files, we establish a minimum height by always
 486      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 487      where they would be normally; the bottom and top are in a
 488      different co-ordinate system.  */
 489   Lisp_Object start, end;
 490
 491   /* If the scroll bar handle is currently being dragged by the user,
 492      this is the number of pixels from the top of the handle to the
 493      place where the user grabbed it.  If the handle isn't currently
 494      being dragged, this is Qnil.  */
 495   Lisp_Object dragging;
 496 };
 497
 498 /* The number of elements a vector holding a struct scroll_bar needs.  */
 499 #define SCROLL_BAR_VEC_SIZE                                     \
 500   ((sizeof (struct scroll_bar)                                  \
 501     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 502    / sizeof (Lisp_Object))
 503
 504 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 505 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 506
 507
 508 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 509 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 510
 511 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 512 #define SCROLL_BAR_UNPACK(low, high, int32) \
 513   (XSETINT ((low),   (int32)        & 0xffff), \
 514    XSETINT ((high), ((int32) >> 16) & 0xffff))
 515
 516
 517 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 518 #define SCROLL_BAR_W32_WINDOW(ptr) \
 519   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 520
 521 /* Store a window id in a struct scroll_bar.  */
 522 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 523   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 524
 525 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 526 #define SCROLL_BAR_X_WIDGET(ptr) \
 527   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 528
 529 /* Store a widget id in a struct scroll_bar.  */
 530 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 531   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 532
 533 /* Return the inside width of a vertical scroll bar, given the outside
 534    width.  */
 535 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 536   ((width) \
 537    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 538    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 539    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 540
 541 /* Return the length of the rectangle within which the top of the
 542    handle must stay.  This isn't equivalent to the inside height,
 543    because the scroll bar handle has a minimum height.
 544
 545    This is the real range of motion for the scroll bar, so when we're
 546    scaling buffer positions to scroll bar positions, we use this, not
 547    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 548 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 549   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 550
 551 /* Return the inside height of vertical scroll bar, given the outside
 552    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 553 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 554   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 555
 556
 557 /* Border widths for scroll bars.
 558
 559    Scroll bar windows don't have any borders; their border width is
 560    set to zero, and we redraw borders ourselves.  This makes the code
 561    a bit cleaner, since we don't have to convert between outside width
 562    (used when relating to the rest of the screen) and inside width
 563    (used when sizing and drawing the scroll bar window itself).
 564
 565    The handle moves up and down/back and forth in a rectangle inset
 566    from the edges of the scroll bar.  These are widths by which we
 567    inset the handle boundaries from the scroll bar edges.  */
 568 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 569 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 570 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 571 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 572
 573 /* Minimum lengths for scroll bar handles, in pixels.  */
 574 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 575
 576 /* Trimming off a few pixels from each side prevents
 577    text from glomming up against the scroll bar */
 578 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 579
 580 \f
 581 extern void w32_fill_rect ();
 582 extern void w32_clear_window ();
 583
 584 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 585 { \
 586     RECT rect; \
 587     rect.left = x; \
 588     rect.top = y; \
 589     rect.right = x + nx; \
 590     rect.bottom = y + ny; \
 591     w32_fill_rect (f,hdc,pix,&rect); \
 592 }
 593
 594 #define w32_clear_rect(f,hdc,lprect) \
 595 w32_fill_rect (f,hdc,f->output_data.x->background_pixel,lprect)
 596
 597 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 598 w32_fill_area (f,hdc,f->output_data.x->background_pixel,px,py,nx,ny)
 599
 600 extern struct font_info *w32_load_font ();
 601 extern void w32_unload_font ();
 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
 615 #define WM_EMACS_START                 (WM_USER + 1)
 616 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 617 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 618 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 619 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 620 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 621 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 622 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 623 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 624 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 625 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 626 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 627 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 628 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 629 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 630 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 631 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 632 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 633 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 634 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 635 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 636 #define WM_EMACS_END                   (WM_EMACS_START + 20)
 637
 638 #define WND_FONTWIDTH_INDEX    (0)
 639 #define WND_LINEHEIGHT_INDEX   (4)
 640 #define WND_BORDER_INDEX       (8)
 641 #define WND_SCROLLBAR_INDEX    (12)
 642 #define WND_BACKGROUND_INDEX   (16)
 643 #define WND_LAST_INDEX         (20)
 644
 645 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 646
 647 extern DWORD dwWindowsThreadId;
 648 extern HANDLE hWindowsThread;
 649 extern DWORD dwMainThreadId;
 650 extern HANDLE hMainThread;
 651
 652 typedef struct W32Msg {
 653     MSG msg;
 654     DWORD dwModifiers;
 655     RECT rect;
 656 } W32Msg;
 657
 658 /* Structure for recording message when input thread must return a
 659    result that depends on lisp thread to compute.  Lisp thread can
 660    complete deferred messages out of order.  */
 661 typedef struct deferred_msg
 662 {
 663   struct deferred_msg * next;
 664   W32Msg                w32msg;
 665   LRESULT               result;
 666   int                   completed;
 667 } deferred_msg;
 668
 669 extern CRITICAL_SECTION critsect;
 670
 671 extern void init_crit ();
 672 extern void delete_crit ();
 673
 674 extern void signal_quit ();
 675
 676 #define enter_crit() EnterCriticalSection (&critsect)
 677 #define leave_crit() LeaveCriticalSection (&critsect)
 678
 679 extern void select_palette (struct frame * f, HDC hdc);
 680 extern void deselect_palette (struct frame * f, HDC hdc);
 681 extern HDC get_frame_dc (struct frame * f);
 682 extern int release_frame_dc (struct frame * f, HDC hDC);
 683
 684 extern void drain_message_queue ();
 685
 686 extern BOOL get_next_msg ();
 687 extern BOOL post_msg ();
 688 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 689 extern void wait_for_sync ();
 690
 691 extern BOOL parse_button ();
 692
 693 /* Keypad command key support.  W32 doesn't have virtual keys defined
 694    for the function keys on the keypad (they are mapped to the standard
 695    fuction keys), so we define our own.  */
 696 #define VK_NUMPAD_BEGIN         0x92
 697 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 698 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 699 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 700 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 701 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 702 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 703 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 704 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 705 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 706 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 707 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 708 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 709
 710 #ifndef VK_LWIN
 711 /* Older compiler environments don't have these defined.  */
 712 #define VK_LWIN                 0x5B
 713 #define VK_RWIN                 0x5C
 714 #define VK_APPS                 0x5D
 715 #endif
 716
 717 /* Support for treating Windows and Apps keys as modifiers.  These
 718    constants must not overlap with any of the dwControlKeyState flags in
 719    KEY_EVENT_RECORD.  */
 720 #define LEFT_WIN_PRESSED       0x8000
 721 #define RIGHT_WIN_PRESSED      0x4000
 722 #define APPS_PRESSED           0x2000
 723
 724 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 725    (even though they are supported on 98 and ME.  */
 726 #ifndef WM_MOUSELEAVE
 727 #define WM_MOUSELEAVE 0x02A3
 728 #define TME_LEAVE 0x00000002;
 729
 730 typedef struct tagTRACKMOUSEEVENT
 731 {
 732   DWORD cbSize;
 733   DWORD dwFlags;
 734   HWND hwndTrack;
 735   DWORD dwHoverTime;
 736 } TRACKMOUSEEVENT;
 737 #endif
 738
 739 struct image;
 740 struct face;
 741
 742 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 743 struct frame * check_x_frame (Lisp_Object);
 744 Lisp_Object vga_stdcolor_name (int);
 745
 746 EXFUN (Fx_display_color_p, 1);
 747 EXFUN (Fx_display_grayscale_p, 1);
 748
 749 #define FONT_TYPE_FOR_UNIBYTE(font, ch)                 \
 750   ((font)->bdf ? BDF_1D_FONT : ANSI_FONT)
 751
 752 #define FONT_TYPE_FOR_MULTIBYTE(font, ch)               \
 753   (!(font)->bdf                                         \
 754    ? UNICODE_FONT                                       \
 755    : ((CHARSET_DIMENSION (CHAR_CHARSET ((ch))) == 1)    \
 756       ? BDF_1D_FONT : BDF_2D_FONT))
 757
 758 typedef DWORD (WINAPI * ClipboardSequence_Proc) ();
 759 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 760     IN HMENU,
 761     IN UINT,
 762     IN UINT_PTR,
 763     IN LPCWSTR);
 764
 765 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 766    (do not change this comment) */