src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft W32 API.
   2    Copyright (C) 1995, 2001 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Added by Kevin Gallo */
  22
  23 #include "w32gui.h"
  24
  25 \f
  26 #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
  27 #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
  28
  29 #define FONT_WIDTH(f)       \
  30   ((f)->bdf ? (f)->bdf->width : (f)->tm.tmAveCharWidth)
  31 #define FONT_HEIGHT(f)      \
  32    ((f)->bdf ? (f)->bdf->height : (f)->tm.tmHeight)
  33 #define FONT_BASE(f)        \
  34   ((f)->bdf ? (f)->bdf->ury : (f)->tm.tmAscent)
  35 #define FONT_DESCENT(f)     \
  36   ((f)->bdf ? -((f)->bdf->lly) : (f)->tm.tmDescent)
  37 #define FONT_MAX_WIDTH(f)   \
  38   ((f)->bdf ? (f)->bdf->width : (f)->tm.tmMaxCharWidth)
  39
  40 #define CP_DEFAULT 1004
  41 /* Special pseudo-codepages. */
  42 #define CP_8BIT      -1
  43 #define CP_UNICODE   -2
  44 #define CP_UNKNOWN   -3
  45
  46 #define CHECK_W32_FRAME(f, frame)               \
  47   if (NILP (frame))                             \
  48     f = SELECTED_FRAME ();                      \
  49   else                                          \
  50     {                                           \
  51       CHECK_LIVE_FRAME (frame, 0);              \
  52       f = XFRAME (frame);                       \
  53     }                                           \
  54   if (! FRAME_W32_P (f))
  55
  56 /* Indicates whether we are in the readsocket call and the message we
  57    are processing in the current loop */
  58
  59 extern MSG CurMsg;
  60 extern BOOL bUseDflt;
  61
  62 extern struct frame *x_window_to_frame ();
  63
  64 /* Structure recording bitmaps and reference count.
  65    If REFCOUNT is 0 then this record is free to be reused.  */
  66
  67 struct w32_bitmap_record
  68 {
  69   Pixmap pixmap;
  70   char *file;
  71   HINSTANCE hinst; /* Used to load the file */
  72   int refcount;
  73   /* Record some info about this pixmap.  */
  74   int height, width, depth;
  75 };
  76
  77 /* Palette book-keeping stuff for mapping requested colors into the
  78    system palette.  Keep a ref-counted list of requested colors and
  79    regenerate the app palette whenever the requested list changes. */
  80
  81 extern Lisp_Object Vw32_enable_palette;
  82
  83 struct w32_palette_entry {
  84   struct w32_palette_entry * next;
  85   PALETTEENTRY entry;
  86 #if 0
  87   unsigned refcount;
  88 #endif
  89 };
  90
  91 extern void w32_regenerate_palette(struct frame *f);
  92
  93 \f
  94 /* For each display (currently only one on w32), we have a structure that
  95    records information about it.  */
  96
  97 struct w32_display_info
  98 {
  99   /* Chain of all w32_display_info structures.  */
 100   struct w32_display_info *next;
 101
 102   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 103      The same cons cell also appears in x_display_name_list.  */
 104   Lisp_Object name_list_element;
 105
 106   /* Number of frames that are on this display.  */
 107   int reference_count;
 108
 109   /* Dots per inch of the screen.  */
 110   double resx, resy;
 111
 112   /* Number of planes on this screen.  */
 113   int n_planes;
 114
 115   /* Number of bits per pixel on this screen.  */
 116   int n_cbits;
 117
 118   /* Dimensions of this screen.  */
 119   int height, width;
 120   int height_in,width_in;
 121
 122   /* Mask of things that cause the mouse to be grabbed.  */
 123   int grabbed;
 124
 125   /* Emacs bitmap-id of the default icon bitmap for this frame.
 126      Or -1 if none has been allocated yet.  */
 127   int icon_bitmap_id;
 128
 129   /* The root window of this screen.  */
 130   Window root_window;
 131
 132   /* The cursor to use for vertical scroll bars.  */
 133   Cursor vertical_scroll_bar_cursor;
 134
 135   /* Resource data base */
 136   XrmDatabase xrdb;
 137
 138   /* color palette information.  */
 139   int has_palette;
 140   struct w32_palette_entry * color_list;
 141   unsigned num_colors;
 142   HPALETTE palette;
 143
 144   /* deferred action flags checked when starting frame update.  */
 145   int regen_palette;
 146
 147   /* Keystroke that has been faked by Emacs and will be ignored when
 148      received; value is reset after key is received.  */
 149   int faked_key;
 150
 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
 157   /* Minimum width over all characters in all fonts in font_table.  */
 158   int smallest_char_width;
 159
 160   /* Minimum font height over all fonts in font_table.  */
 161   int smallest_font_height;
 162
 163   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 164   XGCValues *scratch_cursor_gc;
 165
 166   /* These variables describe the range of text currently shown in its
 167      mouse-face, together with the window they apply to. As long as
 168      the mouse stays within this range, we need not redraw anything on
 169      its account.  Rows and columns are glyph matrix positions in
 170      MOUSE_FACE_WINDOW.  */
 171   int mouse_face_beg_row, mouse_face_beg_col;
 172   int mouse_face_beg_x, mouse_face_beg_y;
 173   int mouse_face_end_row, mouse_face_end_col;
 174   int mouse_face_end_x, mouse_face_end_y;
 175   int mouse_face_past_end;
 176   Lisp_Object mouse_face_window;
 177   int mouse_face_face_id;
 178   Lisp_Object mouse_face_overlay;
 179
 180   /* 1 if a mouse motion event came and we didn't handle it right away because
 181      gc was in progress.  */
 182   int mouse_face_deferred_gc;
 183
 184   /* FRAME and X, Y position of mouse when last checked for
 185      highlighting.  X and Y can be negative or out of range for the frame.  */
 186   struct frame *mouse_face_mouse_frame;
 187   int mouse_face_mouse_x, mouse_face_mouse_y;
 188
 189   /* Nonzero means defer mouse-motion highlighting.  */
 190   int mouse_face_defer;
 191
 192   /* Nonzero means that the mouse highlight should not be shown.  */
 193   int mouse_face_hidden;
 194
 195   int mouse_face_image_state;
 196
 197   char *w32_id_name;
 198
 199   /* The number of fonts actually stored in w32_font_table.
 200      font_table[n] is used and valid iff 0 <= n < n_fonts. 0 <=
 201      n_fonts <= font_table_size. and font_table[i].name != 0. */
 202   int n_fonts;
 203
 204   /* Pointer to bitmap records.  */
 205   struct w32_bitmap_record *bitmaps;
 206
 207   /* Allocated size of bitmaps field.  */
 208   int bitmaps_size;
 209
 210   /* Last used bitmap index.  */
 211   int bitmaps_last;
 212
 213   /* The frame (if any) which has the window that has keyboard focus.
 214      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 215      that a mere EnterNotify event can set this; if you need to know the
 216      last frame specified in a FocusIn or FocusOut event, use
 217      w32_focus_event_frame.  */
 218   struct frame *w32_focus_frame;
 219
 220   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 221      separate from w32_focus_frame, because whether or not LeaveNotify
 222      events cause us to lose focus depends on whether or not we have
 223      received a FocusIn event for it.  */
 224   struct frame *w32_focus_event_frame;
 225
 226   /* The frame which currently has the visual highlight, and should get
 227      keyboard input (other sorts of input have the frame encoded in the
 228      event).  It points to the focus frame's selected window's
 229      frame.  It differs from w32_focus_frame when we're using a global
 230      minibuffer.  */
 231   struct frame *x_highlight_frame;
 232
 233   /* Cache of images.  */
 234   struct image_cache *image_cache;
 235 };
 236
 237 /* This is a chain of structures for all the displays currently in use.  */
 238 extern struct w32_display_info *x_display_list;
 239 extern struct w32_display_info one_w32_display_info;
 240
 241 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 242    one for each element of w32_display_list and in the same order.
 243    NAME is the name of the frame.
 244    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 245 extern Lisp_Object w32_display_name_list;
 246
 247 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 248 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 249
 250 /* A flag to control how to display unibyte 8-bit character.  */
 251 extern int unibyte_display_via_language_environment;
 252
 253 struct w32_display_info *x_display_info_for_name ();
 254
 255 Lisp_Object display_x_get_resource P_ ((struct w32_display_info *,
 256                                         Lisp_Object, Lisp_Object,
 257                                         Lisp_Object, Lisp_Object));
 258
 259 extern struct w32_display_info *w32_term_init ();
 260 \f
 261 extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int));
 262 extern struct font_info *w32_get_font_info (), *w32_query_font ();
 263 extern void w32_cache_char_metrics (XFontStruct *font);
 264 extern void w32_find_ccl_program();
 265 \f
 266 #define PIX_TYPE COLORREF
 267
 268 /* Each W32 frame object points to its own struct w32_display object
 269    in the output_data.w32 field.  The w32_display structure contains all
 270    the information that is specific to W32 windows.  */
 271
 272 /* Put some things in x_output for compatibility.
 273    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 274    diffs between X and w32 code.  */
 275 struct x_output
 276 {
 277   PIX_TYPE background_pixel;
 278   PIX_TYPE foreground_pixel;
 279 };
 280
 281
 282 struct w32_output
 283 {
 284   /* Placeholder for things accessed through output_data.x.  */
 285   struct x_output x_compatible;
 286
 287   /* Menubar "widget" handle.  */
 288   HMENU menubar_widget;
 289
 290   /* Original palette (used to deselect real palette after drawing) */
 291   HPALETTE old_palette;
 292
 293   /* Here are the Graphics Contexts for the default font.  */
 294   XGCValues *cursor_gc;                         /* cursor drawing */
 295
 296   /* The window used for this frame.
 297      May be zero while the frame object is being created
 298      and the window has not yet been created.  */
 299   Window window_desc;
 300
 301   /* The window that is the parent of this window.
 302      Usually this is a window that was made by the window manager,
 303      but it can be the root window, and it can be explicitly specified
 304      (see the explicit_parent field, below).  */
 305   Window parent_desc;
 306
 307   /* Default ASCII font of this frame. */
 308   XFontStruct *font;
 309
 310   /* The baseline offset of the default ASCII font.  */
 311   int baseline_offset;
 312
 313   /* If a fontset is specified for this frame instead of font, this
 314      value contains an ID of the fontset, else -1.  */
 315   int fontset;
 316
 317   /* Pixel values used for various purposes.
 318      border_pixel may be -1 meaning use a gray tile.  */
 319   COLORREF cursor_pixel;
 320   COLORREF border_pixel;
 321   COLORREF mouse_pixel;
 322   COLORREF cursor_foreground_pixel;
 323
 324   /* Foreground color for scroll bars.  A value of -1 means use the
 325      default (black for non-toolkit scroll bars).  */
 326   COLORREF scroll_bar_foreground_pixel;
 327
 328   /* Background color for scroll bars.  A value of -1 means use the
 329      default (background color of the frame for non-toolkit scroll
 330      bars).  */
 331   COLORREF scroll_bar_background_pixel;
 332
 333   /* Descriptor for the cursor in use for this window.  */
 334   Cursor text_cursor;
 335   Cursor nontext_cursor;
 336   Cursor modeline_cursor;
 337   Cursor hand_cursor;
 338   Cursor hourglass_cursor;
 339   Cursor horizontal_drag_cursor;
 340
 341   /* Window whose cursor is hourglass_cursor.  This window is
 342      temporarily mapped to display an hourglass cursor.  */
 343   Window hourglass_window;
 344
 345   /* Non-zero means hourglass cursor is currently displayed.  */
 346   unsigned hourglass_p : 1;
 347
 348   /* Flag to set when the window needs to be completely repainted.  */
 349   int needs_exposure;
 350
 351   DWORD dwStyle;
 352
 353   /* This is the Emacs structure for the display this frame is on.  */
 354   /* struct w32_display_info *display_info; */
 355
 356   /* Nonzero means our parent is another application's window
 357      and was explicitly specified.  */
 358   char explicit_parent;
 359
 360   /* Nonzero means tried already to make this frame visible.  */
 361   char asked_for_visible;
 362
 363   /* Nonzero means menubar is currently active.  */
 364   char menubar_active;
 365
 366   /* Nonzero means a menu command is being processed.  */
 367   char menu_command_in_progress;
 368
 369   /* Nonzero means menubar is about to become active, but should be
 370      brought up to date first.  */
 371   volatile char pending_menu_activation;
 372
 373   /* Relief GCs, colors etc.  */
 374   struct relief
 375   {
 376     XGCValues *gc;
 377     unsigned long pixel;
 378     int allocated_p;
 379   }
 380   black_relief, white_relief;
 381
 382   /* The background for which the above relief GCs were set up.
 383      They are changed only when a different background is involved.  */
 384   unsigned long relief_background;
 385 };
 386
 387 extern struct w32_output w32term_display;
 388
 389 /* Return the X output data for frame F.  */
 390 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 391
 392 /* Return the window associated with the frame F.  */
 393 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 394 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 395
 396 #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel)
 397 #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel)
 398 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 399 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 400 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 401
 402 /* This gives the w32_display_info structure for the display F is on.  */
 403 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 404 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 405
 406 /* This is the `Display *' which frame F is on.  */
 407 #define FRAME_X_DISPLAY(f) (0)
 408
 409 /* This is the 'font_info *' which frame F has.  */
 410 #define FRAME_W32_FONT_TABLE(f) (FRAME_W32_DISPLAY_INFO (f)->font_table)
 411
 412 /* Value is the smallest width of any character in any font on frame F.  */
 413
 414 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 415      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 416
 417 /* Value is the smallest height of any font on frame F.  */
 418
 419 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 420      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 421
 422 /* Return a pointer to the image cache of frame F.  */
 423
 424 #define FRAME_X_IMAGE_CACHE(F) FRAME_W32_DISPLAY_INFO ((F))->image_cache
 425
 426 \f
 427 /* W32-specific scroll bar stuff.  */
 428
 429 /* We represent scroll bars as lisp vectors.  This allows us to place
 430    references to them in windows without worrying about whether we'll
 431    end up with windows referring to dead scroll bars; the garbage
 432    collector will free it when its time comes.
 433
 434    We use struct scroll_bar as a template for accessing fields of the
 435    vector.  */
 436
 437 struct scroll_bar {
 438
 439   /* These fields are shared by all vectors.  */
 440   EMACS_INT size_from_Lisp_Vector_struct;
 441   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 442
 443   /* The window we're a scroll bar for.  */
 444   Lisp_Object window;
 445
 446   /* The next and previous in the chain of scroll bars in this frame.  */
 447   Lisp_Object next, prev;
 448
 449   /* The window representing this scroll bar.  Since this is a full
 450      32-bit quantity, we store it split into two 32-bit values.  */
 451   Lisp_Object w32_window_low, w32_window_high;
 452
 453   /* Same as above for the widget.  */
 454   Lisp_Object w32_widget_low, w32_widget_high;
 455
 456   /* The position and size of the scroll bar in pixels, relative to the
 457      frame.  */
 458   Lisp_Object top, left, width, height;
 459
 460   /* The starting and ending positions of the handle, relative to the
 461      handle area (i.e. zero is the top position, not
 462      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 463      hasn't been drawn yet.
 464
 465      These are not actually the locations where the beginning and end
 466      are drawn; in order to keep handles from becoming invisible when
 467      editing large files, we establish a minimum height by always
 468      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 469      where they would be normally; the bottom and top are in a
 470      different co-ordinate system.  */
 471   Lisp_Object start, end;
 472
 473   /* If the scroll bar handle is currently being dragged by the user,
 474      this is the number of pixels from the top of the handle to the
 475      place where the user grabbed it.  If the handle isn't currently
 476      being dragged, this is Qnil.  */
 477   Lisp_Object dragging;
 478 };
 479
 480 /* The number of elements a vector holding a struct scroll_bar needs.  */
 481 #define SCROLL_BAR_VEC_SIZE                                     \
 482   ((sizeof (struct scroll_bar)                                  \
 483     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 484    / sizeof (Lisp_Object))
 485
 486 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 487 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 488
 489
 490 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 491 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 492
 493 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 494 #define SCROLL_BAR_UNPACK(low, high, int32) \
 495   (XSETINT ((low),   (int32)        & 0xffff), \
 496    XSETINT ((high), ((int32) >> 16) & 0xffff))
 497
 498
 499 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 500 #define SCROLL_BAR_W32_WINDOW(ptr) \
 501   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 502
 503 /* Store a window id in a struct scroll_bar.  */
 504 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 505   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 506
 507 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 508 #define SCROLL_BAR_X_WIDGET(ptr) \
 509   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 510
 511 /* Store a widget id in a struct scroll_bar.  */
 512 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 513   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 514
 515 /* Return the inside width of a vertical scroll bar, given the outside
 516    width.  */
 517 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 518   ((width) \
 519    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 520    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 521    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 522
 523 /* Return the length of the rectangle within which the top of the
 524    handle must stay.  This isn't equivalent to the inside height,
 525    because the scroll bar handle has a minimum height.
 526
 527    This is the real range of motion for the scroll bar, so when we're
 528    scaling buffer positions to scroll bar positions, we use this, not
 529    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 530 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 531   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 532
 533 /* Return the inside height of vertical scroll bar, given the outside
 534    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 535 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 536   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 537
 538
 539 /* Border widths for scroll bars.
 540
 541    Scroll bar windows don't have any borders; their border width is
 542    set to zero, and we redraw borders ourselves.  This makes the code
 543    a bit cleaner, since we don't have to convert between outside width
 544    (used when relating to the rest of the screen) and inside width
 545    (used when sizing and drawing the scroll bar window itself).
 546
 547    The handle moves up and down/back and forth in a rectangle inset
 548    from the edges of the scroll bar.  These are widths by which we
 549    inset the handle boundaries from the scroll bar edges.  */
 550 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 551 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 552 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 553 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 554
 555 /* Minimum lengths for scroll bar handles, in pixels.  */
 556 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 557
 558 /* Trimming off a few pixels from each side prevents
 559    text from glomming up against the scroll bar */
 560 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 561
 562 \f
 563 extern void w32_fill_rect ();
 564 extern void w32_clear_window ();
 565
 566 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 567 { \
 568     RECT rect; \
 569     rect.left = x; \
 570     rect.top = y; \
 571     rect.right = x + nx; \
 572     rect.bottom = y + ny; \
 573     w32_fill_rect (f,hdc,pix,&rect); \
 574 }
 575
 576 #define w32_clear_rect(f,hdc,lprect) \
 577 w32_fill_rect (f,hdc,f->output_data.x->background_pixel,lprect)
 578
 579 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 580 w32_fill_area (f,hdc,f->output_data.x->background_pixel,px,py,nx,ny)
 581
 582 extern struct font_info *w32_load_font ();
 583 extern void w32_unload_font ();
 584
 585 /* Define for earlier versions of Visual C */
 586 #ifndef WM_MOUSEWHEEL
 587 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 588 #endif /* WM_MOUSEWHEEL */
 589 #ifndef MSH_MOUSEWHEEL
 590 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 591 #endif /* MSH_MOUSEWHEEL */
 592 #ifndef WM_XBUTTONDOWN
 593 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 594 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 595 #endif /* WM_XBUTTONDOWN */
 596
 597 #define WM_EMACS_START                 (WM_USER + 1)
 598 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 599 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 600 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 601 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 602 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 603 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 604 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 605 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 606 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 607 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 608 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 609 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 610 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 611 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 612 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 613 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 614 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 615 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 616 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 617 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 618 #define WM_EMACS_END                   (WM_EMACS_START + 20)
 619
 620 #define WND_FONTWIDTH_INDEX    (0)
 621 #define WND_LINEHEIGHT_INDEX   (4)
 622 #define WND_BORDER_INDEX       (8)
 623 #define WND_SCROLLBAR_INDEX    (12)
 624 #define WND_BACKGROUND_INDEX   (16)
 625 #define WND_LAST_INDEX         (20)
 626
 627 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 628
 629 extern DWORD dwWindowsThreadId;
 630 extern HANDLE hWindowsThread;
 631 extern DWORD dwMainThreadId;
 632 extern HANDLE hMainThread;
 633
 634 typedef struct W32Msg {
 635     MSG msg;
 636     DWORD dwModifiers;
 637     RECT rect;
 638 } W32Msg;
 639
 640 /* Structure for recording message when input thread must return a
 641    result that depends on lisp thread to compute.  Lisp thread can
 642    complete deferred messages out of order.  */
 643 typedef struct deferred_msg
 644 {
 645   struct deferred_msg * next;
 646   W32Msg                w32msg;
 647   LRESULT               result;
 648   int                   completed;
 649 } deferred_msg;
 650
 651 extern CRITICAL_SECTION critsect;
 652
 653 extern void init_crit ();
 654 extern void delete_crit ();
 655
 656 extern void signal_quit ();
 657
 658 #define enter_crit() EnterCriticalSection (&critsect)
 659 #define leave_crit() LeaveCriticalSection (&critsect)
 660
 661 extern void select_palette (struct frame * f, HDC hdc);
 662 extern void deselect_palette (struct frame * f, HDC hdc);
 663 extern HDC get_frame_dc (struct frame * f);
 664 extern int release_frame_dc (struct frame * f, HDC hDC);
 665
 666 extern void drain_message_queue ();
 667
 668 extern BOOL get_next_msg ();
 669 extern BOOL post_msg ();
 670 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 671 extern void wait_for_sync ();
 672
 673 extern BOOL parse_button ();
 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 Lisp_Object vga_stdcolor_name (int);
 727
 728 EXFUN (Fx_display_color_p, 1);
 729 EXFUN (Fx_display_grayscale_p, 1);
 730
 731 #define FONT_TYPE_FOR_UNIBYTE(font, ch)                 \
 732   ((font)->bdf ? BDF_1D_FONT : ANSI_FONT)
 733
 734 #define FONT_TYPE_FOR_MULTIBYTE(font, ch)               \
 735   (!(font)->bdf                                         \
 736    ? UNICODE_FONT                                       \
 737    : ((CHARSET_DIMENSION (CHAR_CHARSET ((ch))) == 1)    \
 738       ? BDF_1D_FONT : BDF_2D_FONT))
 739
 740 typedef DWORD (WINAPI * ClipboardSequence_Proc) ();
 741 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 742     IN HMENU,
 743     IN UINT,
 744     IN UINT_PTR,
 745     IN LPCWSTR);
 746
 747 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 748    (do not change this comment) */