src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft W32 API.
   2    Copyright (C) 1995, 2001, 2002, 2003, 2004,
   3                  2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 /* Added by Kevin Gallo */
  21
  22 #include "w32gui.h"
  23
  24 \f
  25 #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
  26 #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
  27
  28 #define FONT_WIDTH(f)     ((f)->max_width)
  29 #define FONT_HEIGHT(f)    ((f)->height)
  30 #define FONT_BASE(f)      ((f)->ascent)
  31 #define FONT_DESCENT(f)   ((f)->descent)
  32
  33 #define CP_DEFAULT 1004
  34
  35 #define CHECK_W32_FRAME(f, frame)               \
  36   if (NILP (frame))                             \
  37     f = SELECTED_FRAME ();                      \
  38   else                                          \
  39     {                                           \
  40       CHECK_LIVE_FRAME (frame, 0);              \
  41       f = XFRAME (frame);                       \
  42     }                                           \
  43   if (! FRAME_W32_P (f))
  44
  45 /* Indicates whether we are in the readsocket call and the message we
  46    are processing in the current loop */
  47
  48 extern MSG CurMsg;
  49 extern BOOL bUseDflt;
  50
  51 extern struct frame *x_window_to_frame ();
  52
  53 /* Structure recording bitmaps and reference count.
  54    If REFCOUNT is 0 then this record is free to be reused.  */
  55
  56 struct w32_bitmap_record
  57 {
  58   Pixmap pixmap;
  59   char *file;
  60   HINSTANCE hinst; /* Used to load the file */
  61   int refcount;
  62   /* Record some info about this pixmap.  */
  63   int height, width, depth;
  64 };
  65
  66 /* Palette book-keeping stuff for mapping requested colors into the
  67    system palette.  Keep a ref-counted list of requested colors and
  68    regenerate the app palette whenever the requested list changes. */
  69
  70 extern Lisp_Object Vw32_enable_palette;
  71
  72 struct w32_palette_entry {
  73   struct w32_palette_entry * next;
  74   PALETTEENTRY entry;
  75 #if 0
  76   unsigned refcount;
  77 #endif
  78 };
  79
  80 extern void w32_regenerate_palette(struct frame *f);
  81
  82 \f
  83 /* For each display (currently only one on w32), we have a structure that
  84    records information about it.  */
  85
  86 struct w32_display_info
  87 {
  88   /* Chain of all w32_display_info structures.  */
  89   struct w32_display_info *next;
  90
  91   /* The generic display parameters corresponding to this w32 display.  */
  92   struct terminal *terminal;
  93
  94   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
  95      The same cons cell also appears in x_display_name_list.  */
  96   Lisp_Object name_list_element;
  97
  98   /* Number of frames that are on this display.  */
  99   int reference_count;
 100
 101   /* Dots per inch of the screen.  */
 102   double resx, resy;
 103
 104   /* Number of planes on this screen.  */
 105   int n_planes;
 106
 107   /* Number of bits per pixel on this screen.  */
 108   int n_cbits;
 109
 110   /* Mask of things that cause the mouse to be grabbed.  */
 111   int grabbed;
 112
 113   /* Emacs bitmap-id of the default icon bitmap for this frame.
 114      Or -1 if none has been allocated yet.  */
 115   int icon_bitmap_id;
 116
 117   /* The root window of this screen.  */
 118   Window root_window;
 119
 120   /* The cursor to use for vertical scroll bars.  */
 121   Cursor vertical_scroll_bar_cursor;
 122
 123   /* Resource data base */
 124   XrmDatabase xrdb;
 125
 126   /* color palette information.  */
 127   int has_palette;
 128   struct w32_palette_entry * color_list;
 129   unsigned num_colors;
 130   HPALETTE palette;
 131
 132   /* deferred action flags checked when starting frame update.  */
 133   int regen_palette;
 134
 135   /* Keystroke that has been faked by Emacs and will be ignored when
 136      received; value is reset after key is received.  */
 137   int faked_key;
 138
 139   /* Minimum width over all characters in all fonts in font_table.  */
 140   int smallest_char_width;
 141
 142   /* Minimum font height over all fonts in font_table.  */
 143   int smallest_font_height;
 144
 145   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 146   XGCValues *scratch_cursor_gc;
 147
 148   /* These variables describe the range of text currently shown in its
 149      mouse-face, together with the window they apply to. As long as
 150      the mouse stays within this range, we need not redraw anything on
 151      its account.  Rows and columns are glyph matrix positions in
 152      MOUSE_FACE_WINDOW.  */
 153   int mouse_face_beg_row, mouse_face_beg_col;
 154   int mouse_face_beg_x, mouse_face_beg_y;
 155   int mouse_face_end_row, mouse_face_end_col;
 156   int mouse_face_end_x, mouse_face_end_y;
 157   int mouse_face_past_end;
 158   Lisp_Object mouse_face_window;
 159   int mouse_face_face_id;
 160   Lisp_Object mouse_face_overlay;
 161
 162   /* 1 if a mouse motion event came and we didn't handle it right away because
 163      gc was in progress.  */
 164   int mouse_face_deferred_gc;
 165
 166   /* FRAME and X, Y position of mouse when last checked for
 167      highlighting.  X and Y can be negative or out of range for the frame.  */
 168   struct frame *mouse_face_mouse_frame;
 169   int mouse_face_mouse_x, mouse_face_mouse_y;
 170
 171   /* Nonzero means defer mouse-motion highlighting.  */
 172   int mouse_face_defer;
 173
 174   /* Nonzero means that the mouse highlight should not be shown.  */
 175   int mouse_face_hidden;
 176
 177   int mouse_face_image_state;
 178
 179   char *w32_id_name;
 180
 181   /* The number of fonts actually stored in w32_font_table.
 182      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 183      n_fonts <= font_table_size. and font_table[i].name != 0. */
 184   int n_fonts;
 185
 186   /* Pointer to bitmap records.  */
 187   struct w32_bitmap_record *bitmaps;
 188
 189   /* Allocated size of bitmaps field.  */
 190   int bitmaps_size;
 191
 192   /* Last used bitmap index.  */
 193   int bitmaps_last;
 194
 195   /* The frame (if any) which has the window that has keyboard focus.
 196      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 197      that a mere EnterNotify event can set this; if you need to know the
 198      last frame specified in a FocusIn or FocusOut event, use
 199      w32_focus_event_frame.  */
 200   struct frame *w32_focus_frame;
 201
 202   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 203      separate from w32_focus_frame, because whether or not LeaveNotify
 204      events cause us to lose focus depends on whether or not we have
 205      received a FocusIn event for it.  */
 206   struct frame *w32_focus_event_frame;
 207
 208   /* The frame which currently has the visual highlight, and should get
 209      keyboard input (other sorts of input have the frame encoded in the
 210      event).  It points to the focus frame's selected window's
 211      frame.  It differs from w32_focus_frame when we're using a global
 212      minibuffer.  */
 213   struct frame *x_highlight_frame;
 214 };
 215
 216 /* This is a chain of structures for all the displays currently in use.  */
 217 extern struct w32_display_info *x_display_list;
 218 extern struct w32_display_info one_w32_display_info;
 219
 220 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 221    one for each element of w32_display_list and in the same order.
 222    NAME is the name of the frame.
 223    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 224 extern Lisp_Object w32_display_name_list;
 225
 226 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 227 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 228
 229 struct w32_display_info *x_display_info_for_name ();
 230
 231 Lisp_Object display_x_get_resource P_ ((struct w32_display_info *,
 232                                         Lisp_Object, Lisp_Object,
 233                                         Lisp_Object, Lisp_Object));
 234
 235 extern struct w32_display_info *w32_term_init ();
 236
 237 extern int x_display_pixel_height P_ ((struct w32_display_info *));
 238 extern int x_display_pixel_width P_ ((struct w32_display_info *));
 239
 240 \f
 241 #define PIX_TYPE COLORREF
 242
 243 /* Each W32 frame object points to its own struct w32_display object
 244    in the output_data.w32 field.  The w32_display structure contains all
 245    the information that is specific to W32 windows.  */
 246
 247 /* Put some things in x_output for compatibility.
 248    NTEMACS_TODO: Move all common things here to eliminate unneccesary
 249    diffs between X and w32 code.  */
 250 struct x_output
 251 {
 252 #if 0 /* These are also defined in struct frame.  Use that instead.  */
 253   PIX_TYPE background_pixel;
 254   PIX_TYPE foreground_pixel;
 255 #endif
 256
 257   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 258      frame, or IMPLICIT if we received an EnterNotify.
 259      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 260   int focus_state;
 261
 262 };
 263
 264 enum
 265 {
 266   /* Values for focus_state, used as bit mask.
 267      EXPLICIT means we received a FocusIn for the frame and know it has
 268      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 269      may have the focus if no window manager is running.
 270      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 271   FOCUS_NONE     = 0,
 272   FOCUS_IMPLICIT = 1,
 273   FOCUS_EXPLICIT = 2
 274 };
 275
 276 struct w32_output
 277 {
 278   /* Placeholder for things accessed through output_data.x.  */
 279   struct x_output x_compatible;
 280
 281   /* Menubar "widget" handle.  */
 282   HMENU menubar_widget;
 283
 284   /* Original palette (used to deselect real palette after drawing) */
 285   HPALETTE old_palette;
 286
 287   /* Here are the Graphics Contexts for the default font.  */
 288   XGCValues *cursor_gc;                         /* cursor drawing */
 289
 290   /* The window used for this frame.
 291      May be zero while the frame object is being created
 292      and the window has not yet been created.  */
 293   Window window_desc;
 294
 295   /* The window that is the parent of this window.
 296      Usually this is a window that was made by the window manager,
 297      but it can be the root window, and it can be explicitly specified
 298      (see the explicit_parent field, below).  */
 299   Window parent_desc;
 300
 301   /* Default ASCII font of this frame. */
 302   struct font *font;
 303
 304   /* The baseline offset of the default ASCII font.  */
 305   int baseline_offset;
 306
 307   /* If a fontset is specified for this frame instead of font, this
 308      value contains an ID of the fontset, else -1.  */
 309   int fontset;
 310
 311   /* Pixel values used for various purposes.
 312      border_pixel may be -1 meaning use a gray tile.  */
 313   COLORREF cursor_pixel;
 314   COLORREF border_pixel;
 315   COLORREF mouse_pixel;
 316   COLORREF cursor_foreground_pixel;
 317
 318   /* Foreground color for scroll bars.  A value of -1 means use the
 319      default (black for non-toolkit scroll bars).  */
 320   COLORREF scroll_bar_foreground_pixel;
 321
 322   /* Background color for scroll bars.  A value of -1 means use the
 323      default (background color of the frame for non-toolkit scroll
 324      bars).  */
 325   COLORREF scroll_bar_background_pixel;
 326
 327   /* Descriptor for the cursor in use for this window.  */
 328   Cursor text_cursor;
 329   Cursor nontext_cursor;
 330   Cursor modeline_cursor;
 331   Cursor hand_cursor;
 332   Cursor hourglass_cursor;
 333   Cursor horizontal_drag_cursor;
 334
 335   /* Non-zero means hourglass cursor is currently displayed.  */
 336   unsigned hourglass_p : 1;
 337
 338   /* Non-hourglass cursor that is currently active.  */
 339   Cursor current_cursor;
 340
 341   /* Flag to set when the window needs to be completely repainted.  */
 342   int needs_exposure;
 343
 344   DWORD dwStyle;
 345
 346   /* This is the Emacs structure for the display this frame is on.  */
 347   /* struct w32_display_info *display_info; */
 348
 349   /* Nonzero means our parent is another application's window
 350      and was explicitly specified.  */
 351   char explicit_parent;
 352
 353   /* Nonzero means tried already to make this frame visible.  */
 354   char asked_for_visible;
 355
 356   /* Nonzero means menubar is currently active.  */
 357   char menubar_active;
 358
 359   /* Nonzero means menubar is about to become active, but should be
 360      brought up to date first.  */
 361   volatile char pending_menu_activation;
 362
 363   /* Relief GCs, colors etc.  */
 364   struct relief
 365   {
 366     XGCValues *gc;
 367     unsigned long pixel;
 368     int allocated_p;
 369   }
 370   black_relief, white_relief;
 371
 372   /* The background for which the above relief GCs were set up.
 373      They are changed only when a different background is involved.  */
 374   unsigned long relief_background;
 375 };
 376
 377 extern struct w32_output w32term_display;
 378
 379 /* Return the X output data for frame F.  */
 380 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 381
 382 /* Return the window associated with the frame F.  */
 383 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 384 #define FRAME_X_WINDOW(f) ((f)->output_data.w32->window_desc)
 385
 386 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 387 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 388 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 389
 390 /* This gives the w32_display_info structure for the display F is on.  */
 391 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 392 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 393
 394 /* This is the `Display *' which frame F is on.  */
 395 #define FRAME_X_DISPLAY(f) (0)
 396
 397 /* Value is the smallest width of any character in any font on frame F.  */
 398
 399 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 400      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 401
 402 /* Value is the smallest height of any font on frame F.  */
 403
 404 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 405      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 406 \f
 407 /* W32-specific scroll bar stuff.  */
 408
 409 /* We represent scroll bars as lisp vectors.  This allows us to place
 410    references to them in windows without worrying about whether we'll
 411    end up with windows referring to dead scroll bars; the garbage
 412    collector will free it when its time comes.
 413
 414    We use struct scroll_bar as a template for accessing fields of the
 415    vector.  */
 416
 417 struct scroll_bar {
 418
 419   /* These fields are shared by all vectors.  */
 420   EMACS_INT size_from_Lisp_Vector_struct;
 421   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 422
 423   /* The window we're a scroll bar for.  */
 424   Lisp_Object window;
 425
 426   /* The next and previous in the chain of scroll bars in this frame.  */
 427   Lisp_Object next, prev;
 428
 429   /* The window representing this scroll bar.  Since this is a full
 430      32-bit quantity, we store it split into two 32-bit values.  */
 431   Lisp_Object w32_window_low, w32_window_high;
 432
 433   /* Same as above for the widget.  */
 434   Lisp_Object w32_widget_low, w32_widget_high;
 435
 436   /* The position and size of the scroll bar in pixels, relative to the
 437      frame.  */
 438   Lisp_Object top, left, width, height;
 439
 440   /* The starting and ending positions of the handle, relative to the
 441      handle area (i.e. zero is the top position, not
 442      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 443      hasn't been drawn yet.
 444
 445      These are not actually the locations where the beginning and end
 446      are drawn; in order to keep handles from becoming invisible when
 447      editing large files, we establish a minimum height by always
 448      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 449      where they would be normally; the bottom and top are in a
 450      different co-ordinate system.  */
 451   Lisp_Object start, end;
 452
 453   /* If the scroll bar handle is currently being dragged by the user,
 454      this is the number of pixels from the top of the handle to the
 455      place where the user grabbed it.  If the handle isn't currently
 456      being dragged, this is Qnil.  */
 457   Lisp_Object dragging;
 458
 459   /* t if the background of the fringe that is adjacent to a scroll
 460      bar is extended to the gap between the fringe and the bar.  */
 461   Lisp_Object fringe_extended_p;
 462 };
 463
 464 /* The number of elements a vector holding a struct scroll_bar needs.  */
 465 #define SCROLL_BAR_VEC_SIZE                                     \
 466   ((sizeof (struct scroll_bar)                                  \
 467     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 468    / sizeof (Lisp_Object))
 469
 470 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 471 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 472
 473
 474 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 475 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 476
 477 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 478 #define SCROLL_BAR_UNPACK(low, high, int32) \
 479   (XSETINT ((low),   (int32)        & 0xffff), \
 480    XSETINT ((high), ((int32) >> 16) & 0xffff))
 481
 482
 483 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 484 #define SCROLL_BAR_W32_WINDOW(ptr) \
 485   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 486
 487 /* Store a window id in a struct scroll_bar.  */
 488 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 489   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id))
 490
 491 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 492 #define SCROLL_BAR_X_WIDGET(ptr) \
 493   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 494
 495 /* Store a widget id in a struct scroll_bar.  */
 496 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 497   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 498
 499 /* Return the inside width of a vertical scroll bar, given the outside
 500    width.  */
 501 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 502   ((width) \
 503    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 504    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 505    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 506
 507 /* Return the length of the rectangle within which the top of the
 508    handle must stay.  This isn't equivalent to the inside height,
 509    because the scroll bar handle has a minimum height.
 510
 511    This is the real range of motion for the scroll bar, so when we're
 512    scaling buffer positions to scroll bar positions, we use this, not
 513    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 514 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 515   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 516
 517 /* Return the inside height of vertical scroll bar, given the outside
 518    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 519 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 520   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 521
 522
 523 /* Border widths for scroll bars.
 524
 525    Scroll bar windows don't have any borders; their border width is
 526    set to zero, and we redraw borders ourselves.  This makes the code
 527    a bit cleaner, since we don't have to convert between outside width
 528    (used when relating to the rest of the screen) and inside width
 529    (used when sizing and drawing the scroll bar window itself).
 530
 531    The handle moves up and down/back and forth in a rectangle inset
 532    from the edges of the scroll bar.  These are widths by which we
 533    inset the handle boundaries from the scroll bar edges.  */
 534 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 535 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 536 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 537 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 538
 539 /* Minimum lengths for scroll bar handles, in pixels.  */
 540 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 541
 542 /* Trimming off a few pixels from each side prevents
 543    text from glomming up against the scroll bar */
 544 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 545
 546 \f
 547 extern void w32_fill_rect ();
 548 extern void w32_clear_window ();
 549
 550 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 551 do { \
 552     RECT rect; \
 553     rect.left = x; \
 554     rect.top = y; \
 555     rect.right = x + nx; \
 556     rect.bottom = y + ny; \
 557     w32_fill_rect (f,hdc,pix,&rect); \
 558 } while (0)
 559
 560 #define w32_clear_rect(f,hdc,lprect) \
 561   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 562
 563 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 564   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 565
 566 /* Define for earlier versions of Visual C */
 567 #ifndef WM_MOUSEWHEEL
 568 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 569 #endif /* WM_MOUSEWHEEL */
 570 #ifndef MSH_MOUSEWHEEL
 571 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 572 #endif /* MSH_MOUSEWHEEL */
 573 #ifndef WM_XBUTTONDOWN
 574 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 575 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 576 #endif /* WM_XBUTTONDOWN */
 577 #ifndef WM_MOUSEHWHEEL
 578 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 579 #endif /* WM_MOUSEHWHEEL  */
 580 #ifndef WM_APPCOMMAND
 581 #define WM_APPCOMMAND 0x319
 582 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 583 #endif
 584 #ifndef WM_UNICHAR
 585 #define WM_UNICHAR 0x109
 586 #endif
 587 #ifndef UNICODE_NOCHAR
 588 #define UNICODE_NOCHAR 0xFFFF
 589 #endif
 590
 591 #define WM_EMACS_START                 (WM_USER + 1)
 592 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 593 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 594 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 595 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 596 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 597 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 598 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 599 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 600 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 601 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 602 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 603 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 604 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 605 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 606 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 607 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 608 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 609 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 610 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 611 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 612 #define WM_EMACS_PAINT                 (WM_EMACS_START + 20)
 613 #define WM_EMACS_END                   (WM_EMACS_START + 21)
 614
 615 #define WND_FONTWIDTH_INDEX    (0)
 616 #define WND_LINEHEIGHT_INDEX   (4)
 617 #define WND_BORDER_INDEX       (8)
 618 #define WND_SCROLLBAR_INDEX    (12)
 619 #define WND_BACKGROUND_INDEX   (16)
 620 #define WND_LAST_INDEX         (20)
 621
 622 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 623
 624 extern DWORD dwWindowsThreadId;
 625 extern HANDLE hWindowsThread;
 626 extern DWORD dwMainThreadId;
 627 extern HANDLE hMainThread;
 628
 629 typedef struct W32Msg {
 630     MSG msg;
 631     DWORD dwModifiers;
 632     RECT rect;
 633 } W32Msg;
 634
 635 /* Structure for recording message when input thread must return a
 636    result that depends on lisp thread to compute.  Lisp thread can
 637    complete deferred messages out of order.  */
 638 typedef struct deferred_msg
 639 {
 640   struct deferred_msg * next;
 641   W32Msg                w32msg;
 642   LRESULT               result;
 643   int                   completed;
 644 } deferred_msg;
 645
 646 extern CRITICAL_SECTION critsect;
 647
 648 extern void init_crit ();
 649 extern void delete_crit ();
 650
 651 extern void signal_quit ();
 652
 653 #define enter_crit() EnterCriticalSection (&critsect)
 654 #define leave_crit() LeaveCriticalSection (&critsect)
 655
 656 extern void select_palette (struct frame * f, HDC hdc);
 657 extern void deselect_palette (struct frame * f, HDC hdc);
 658 extern HDC get_frame_dc (struct frame * f);
 659 extern int release_frame_dc (struct frame * f, HDC hDC);
 660
 661 extern void drain_message_queue ();
 662
 663 extern BOOL get_next_msg ();
 664 extern BOOL post_msg ();
 665 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 666 extern void wait_for_sync ();
 667
 668 extern BOOL parse_button ();
 669
 670 extern void w32_sys_ring_bell (struct frame *f);
 671 extern void x_delete_display (struct w32_display_info *dpyinfo);
 672
 673 /* Keypad command key support.  W32 doesn't have virtual keys defined
 674    for the function keys on the keypad (they are mapped to the standard
 675    fuction keys), so we define our own.  */
 676 #define VK_NUMPAD_BEGIN         0x92
 677 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 678 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 679 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 680 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 681 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 682 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 683 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 684 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 685 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 686 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 687 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 688 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 689
 690 #ifndef VK_LWIN
 691 /* Older compiler environments don't have these defined.  */
 692 #define VK_LWIN                 0x5B
 693 #define VK_RWIN                 0x5C
 694 #define VK_APPS                 0x5D
 695 #endif
 696
 697 /* Support for treating Windows and Apps keys as modifiers.  These
 698    constants must not overlap with any of the dwControlKeyState flags in
 699    KEY_EVENT_RECORD.  */
 700 #define LEFT_WIN_PRESSED       0x8000
 701 #define RIGHT_WIN_PRESSED      0x4000
 702 #define APPS_PRESSED           0x2000
 703
 704 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 705    (even though they are supported on 98 and ME.  */
 706 #ifndef WM_MOUSELEAVE
 707 #define WM_MOUSELEAVE 0x02A3
 708 #define TME_LEAVE 0x00000002;
 709
 710 typedef struct tagTRACKMOUSEEVENT
 711 {
 712   DWORD cbSize;
 713   DWORD dwFlags;
 714   HWND hwndTrack;
 715   DWORD dwHoverTime;
 716 } TRACKMOUSEEVENT;
 717 #endif
 718
 719 struct image;
 720 struct face;
 721
 722 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 723 struct frame * check_x_frame (Lisp_Object);
 724
 725 EXFUN (Fx_display_color_p, 1);
 726 EXFUN (Fx_display_grayscale_p, 1);
 727
 728 typedef DWORD (WINAPI * ClipboardSequence_Proc) ();
 729 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 730     IN HMENU,
 731     IN UINT,
 732     IN UINT_PTR,
 733     IN LPCWSTR);
 734
 735 /* arch-tag: f201d05a-1240-4fc5-8ea4-ca24d4ee5671
 736    (do not change this comment) */