src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft Windows API.
   2    Copyright (C) 1995, 2001-2012 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 3 of the License, or
   9 (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 /* Added by Kevin Gallo */
  20
  21 #include "w32gui.h"
  22 #include "frame.h"
  23 #include "atimer.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)     ((f)->max_width)
  30 #define FONT_HEIGHT(f)    ((f)->height)
  31 #define FONT_BASE(f)      ((f)->ascent)
  32 #define FONT_DESCENT(f)   ((f)->descent)
  33
  34 #define CP_DEFAULT 1004
  35
  36 #define CHECK_W32_FRAME(f, frame)               \
  37   if (NILP (frame))                             \
  38     f = SELECTED_FRAME ();                      \
  39   else                                          \
  40     {                                           \
  41       CHECK_LIVE_FRAME (frame, 0);              \
  42       f = XFRAME (frame);                       \
  43     }                                           \
  44   if (! FRAME_W32_P (f))
  45
  46 /* Indicates whether we are in the readsocket call and the message we
  47    are processing in the current loop */
  48
  49 extern MSG CurMsg;
  50 extern BOOL bUseDflt;
  51
  52 /* Structure recording bitmaps and reference count.
  53    If REFCOUNT is 0 then this record is free to be reused.  */
  54
  55 struct w32_bitmap_record
  56 {
  57   Pixmap pixmap;
  58   char *file;
  59   HINSTANCE hinst; /* Used to load the file */
  60   int refcount;
  61   /* Record some info about this pixmap.  */
  62   int height, width, depth;
  63 };
  64
  65 struct w32_palette_entry {
  66   struct w32_palette_entry * next;
  67   PALETTEENTRY entry;
  68 #if 0
  69   unsigned refcount;
  70 #endif
  71 };
  72
  73 extern void w32_regenerate_palette (struct frame *f);
  74
  75 \f
  76 /* For each display (currently only one on w32), we have a structure that
  77    records information about it.  */
  78
  79 struct w32_display_info
  80 {
  81   /* Chain of all w32_display_info structures.  */
  82   struct w32_display_info *next;
  83
  84   /* The generic display parameters corresponding to this w32 display.  */
  85   struct terminal *terminal;
  86
  87   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
  88      The same cons cell also appears in x_display_name_list.  */
  89   Lisp_Object name_list_element;
  90
  91   /* Number of frames that are on this display.  */
  92   int reference_count;
  93
  94   /* Dots per inch of the screen.  */
  95   double resx, resy;
  96
  97   /* Number of planes on this screen.  */
  98   int n_planes;
  99
 100   /* Number of bits per pixel on this screen.  */
 101   int n_cbits;
 102
 103   /* Mask of things that cause the mouse to be grabbed.  */
 104   int grabbed;
 105
 106   /* Emacs bitmap-id of the default icon bitmap for this frame.
 107      Or -1 if none has been allocated yet.  */
 108   ptrdiff_t icon_bitmap_id;
 109
 110   /* The root window of this screen.  */
 111   Window root_window;
 112
 113   /* The cursor to use for vertical scroll bars.  */
 114   Cursor vertical_scroll_bar_cursor;
 115
 116   /* Resource data base */
 117   XrmDatabase xrdb;
 118
 119   /* color palette information.  */
 120   int has_palette;
 121   struct w32_palette_entry * color_list;
 122   unsigned num_colors;
 123   HPALETTE palette;
 124
 125   /* deferred action flags checked when starting frame update.  */
 126   int regen_palette;
 127
 128   /* Keystroke that has been faked by Emacs and will be ignored when
 129      received; value is reset after key is received.  */
 130   int faked_key;
 131
 132   /* Minimum width over all characters in all fonts in font_table.  */
 133   int smallest_char_width;
 134
 135   /* Minimum font height over all fonts in font_table.  */
 136   int smallest_font_height;
 137
 138   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 139   XGCValues *scratch_cursor_gc;
 140
 141   /* Information about the range of text currently shown in
 142      mouse-face.  */
 143   Mouse_HLInfo mouse_highlight;
 144
 145   char *w32_id_name;
 146
 147   /* The number of fonts actually stored in w32_font_table.
 148      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 149      n_fonts <= font_table_size. and font_table[i].name != 0. */
 150   int n_fonts;
 151
 152   /* Pointer to bitmap records.  */
 153   struct w32_bitmap_record *bitmaps;
 154
 155   /* Allocated size of bitmaps field.  */
 156   ptrdiff_t bitmaps_size;
 157
 158   /* Last used bitmap index.  */
 159   ptrdiff_t bitmaps_last;
 160
 161   /* The frame (if any) which has the window that has keyboard focus.
 162      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 163      that a mere EnterNotify event can set this; if you need to know the
 164      last frame specified in a FocusIn or FocusOut event, use
 165      w32_focus_event_frame.  */
 166   struct frame *w32_focus_frame;
 167
 168   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 169      separate from w32_focus_frame, because whether or not LeaveNotify
 170      events cause us to lose focus depends on whether or not we have
 171      received a FocusIn event for it.  */
 172   struct frame *w32_focus_event_frame;
 173
 174   /* The frame which currently has the visual highlight, and should get
 175      keyboard input (other sorts of input have the frame encoded in the
 176      event).  It points to the focus frame's selected window's
 177      frame.  It differs from w32_focus_frame when we're using a global
 178      minibuffer.  */
 179   struct frame *x_highlight_frame;
 180 };
 181
 182 /* This is a chain of structures for all the displays currently in use.  */
 183 extern struct w32_display_info *x_display_list;
 184 extern struct w32_display_info one_w32_display_info;
 185
 186 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 187    one for each element of w32_display_list and in the same order.
 188    NAME is the name of the frame.
 189    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 190 extern Lisp_Object w32_display_name_list;
 191
 192 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 193
 194 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 195
 196 Lisp_Object display_x_get_resource (struct w32_display_info *,
 197                                     Lisp_Object, Lisp_Object,
 198                                     Lisp_Object, Lisp_Object);
 199
 200 extern void x_focus_on_frame (struct frame *f);
 201
 202 /* also defined in xterm.h XXX: factor out to common header */
 203
 204 extern struct w32_display_info *w32_term_init (Lisp_Object,
 205                                                char *, char *);
 206 extern void check_w32 (void);
 207 extern int w32_defined_color (FRAME_PTR f, const char *color,
 208                               XColor *color_def, int alloc);
 209 extern void x_set_window_size (struct frame *f, int change_grav,
 210                               int cols, int rows);
 211 extern int x_display_pixel_height (struct w32_display_info *);
 212 extern int x_display_pixel_width (struct w32_display_info *);
 213 extern void x_sync (struct frame *);
 214 extern Lisp_Object x_get_focus_frame (struct frame *);
 215 extern void x_set_mouse_position (struct frame *f, int h, int v);
 216 extern void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
 217 extern void x_make_frame_visible (struct frame *f);
 218 extern void x_make_frame_invisible (struct frame *f);
 219 extern void x_iconify_frame (struct frame *f);
 220 extern int x_pixel_width (struct frame *f);
 221 extern int x_pixel_height (struct frame *f);
 222 extern void x_set_frame_alpha (struct frame *f);
 223 extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 224 extern void x_set_tool_bar_lines (struct frame *f,
 225                                   Lisp_Object value,
 226                                   Lisp_Object oldval);
 227 extern void x_activate_menubar (struct frame *);
 228 extern int x_bitmap_icon (struct frame *, Lisp_Object);
 229 extern void initialize_frame_menubar (struct frame *);
 230 extern void x_free_frame_resources (struct frame *);
 231 extern void x_real_positions (struct frame *, int *, int *);
 232
 233 /* w32inevt.c */
 234 extern int w32_kbd_patch_key (KEY_EVENT_RECORD *event, int cpId);
 235 extern int w32_kbd_mods_to_emacs (DWORD mods, WORD key);
 236
 237
 238 extern Lisp_Object x_get_focus_frame (struct frame *);
 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 unnecessary
 249    diffs between X and w32 code.  */
 250 struct x_output
 251 {
 252   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 253      frame, or IMPLICIT if we received an EnterNotify.
 254      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 255   int focus_state;
 256 };
 257
 258 enum
 259 {
 260   /* Values for focus_state, used as bit mask.
 261      EXPLICIT means we received a FocusIn for the frame and know it has
 262      the focus.  IMPLICIT means we received an EnterNotify and the frame
 263      may have the focus if no window manager is running.
 264      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 265   FOCUS_NONE     = 0,
 266   FOCUS_IMPLICIT = 1,
 267   FOCUS_EXPLICIT = 2
 268 };
 269
 270 struct w32_output
 271 {
 272   /* Placeholder for things accessed through output_data.x.  */
 273   struct x_output x_compatible;
 274
 275   /* Menubar "widget" handle.  */
 276   HMENU menubar_widget;
 277
 278   /* Original palette (used to deselect real palette after drawing) */
 279   HPALETTE old_palette;
 280
 281   /* Here are the Graphics Contexts for the default font.  */
 282   XGCValues *cursor_gc;                         /* cursor drawing */
 283
 284   /* The window used for this frame.
 285      May be zero while the frame object is being created
 286      and the window has not yet been created.  */
 287   Window window_desc;
 288
 289   /* The window that is the parent of this window.
 290      Usually this is a window that was made by the window manager,
 291      but it can be the root window, and it can be explicitly specified
 292      (see the explicit_parent field, below).  */
 293   Window parent_desc;
 294
 295   /* Default ASCII font of this frame. */
 296   struct font *font;
 297
 298   /* The baseline offset of the default ASCII font.  */
 299   int baseline_offset;
 300
 301   /* If a fontset is specified for this frame instead of font, this
 302      value contains an ID of the fontset, else -1.  */
 303   int fontset;
 304
 305   /* Pixel values used for various purposes.
 306      border_pixel may be -1 meaning use a gray tile.  */
 307   COLORREF cursor_pixel;
 308   COLORREF border_pixel;
 309   COLORREF mouse_pixel;
 310   COLORREF cursor_foreground_pixel;
 311
 312   /* Foreground color for scroll bars.  A value of -1 means use the
 313      default (black for non-toolkit scroll bars).  */
 314   COLORREF scroll_bar_foreground_pixel;
 315
 316   /* Background color for scroll bars.  A value of -1 means use the
 317      default (background color of the frame for non-toolkit scroll
 318      bars).  */
 319   COLORREF scroll_bar_background_pixel;
 320
 321   /* Descriptor for the cursor in use for this window.  */
 322   Cursor text_cursor;
 323   Cursor nontext_cursor;
 324   Cursor modeline_cursor;
 325   Cursor hand_cursor;
 326   Cursor hourglass_cursor;
 327   Cursor horizontal_drag_cursor;
 328
 329   /* Non-zero means hourglass cursor is currently displayed.  */
 330   unsigned hourglass_p : 1;
 331
 332   /* Non-hourglass cursor that is currently active.  */
 333   Cursor current_cursor;
 334
 335   DWORD dwStyle;
 336
 337   /* This is the Emacs structure for the display this frame is on.  */
 338   /* struct w32_display_info *display_info; */
 339
 340   /* Nonzero means our parent is another application's window
 341      and was explicitly specified.  */
 342   unsigned explicit_parent : 1;
 343
 344   /* Nonzero means tried already to make this frame visible.  */
 345   unsigned asked_for_visible : 1;
 346
 347   /* Nonzero means menubar is currently active.  */
 348   unsigned menubar_active : 1;
 349
 350   /* Relief GCs, colors etc.  */
 351   struct relief
 352   {
 353     XGCValues *gc;
 354     unsigned long pixel;
 355     int allocated_p;
 356   }
 357   black_relief, white_relief;
 358
 359   /* The background for which the above relief GCs were set up.
 360      They are changed only when a different background is involved.  */
 361   unsigned long relief_background;
 362 };
 363
 364 extern struct w32_output w32term_display;
 365
 366 /* Return the X output data for frame F.  */
 367 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 368
 369 /* Return the window associated with the frame F.  */
 370 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 371 #define FRAME_X_WINDOW(f) FRAME_W32_WINDOW (f)
 372
 373 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 374 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 375 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 376
 377 /* This gives the w32_display_info structure for the display F is on.  */
 378 #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info)
 379 #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info)
 380
 381 /* This is the `Display *' which frame F is on.  */
 382 #define FRAME_X_DISPLAY(f) (0)
 383
 384 /* Value is the smallest width of any character in any font on frame F.  */
 385
 386 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 387      FRAME_W32_DISPLAY_INFO(F)->smallest_char_width
 388
 389 /* Value is the smallest height of any font on frame F.  */
 390
 391 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 392      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
 393 \f
 394 /* W32-specific scroll bar stuff.  */
 395
 396 /* We represent scroll bars as lisp vectors.  This allows us to place
 397    references to them in windows without worrying about whether we'll
 398    end up with windows referring to dead scroll bars; the garbage
 399    collector will free it when its time comes.
 400
 401    We use struct scroll_bar as a template for accessing fields of the
 402    vector.  */
 403
 404 struct scroll_bar {
 405
 406   /* This field is shared by all vectors.  */
 407   struct vectorlike_header header;
 408
 409   /* The window we're a scroll bar for.  */
 410   Lisp_Object window;
 411
 412   /* The next and previous in the chain of scroll bars in this frame.  */
 413   Lisp_Object next, prev;
 414
 415   /* The window representing this scroll bar.  Since this is a full
 416      32-bit quantity, we store it split into two 32-bit values.  */
 417   Lisp_Object w32_window_low, w32_window_high;
 418
 419   /* Same as above for the widget.  */
 420   Lisp_Object w32_widget_low, w32_widget_high;
 421
 422   /* The position and size of the scroll bar in pixels, relative to the
 423      frame.  */
 424   Lisp_Object top, left, width, height;
 425
 426   /* The starting and ending positions of the handle, relative to the
 427      handle area (i.e. zero is the top position, not
 428      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 429      hasn't been drawn yet.
 430
 431      These are not actually the locations where the beginning and end
 432      are drawn; in order to keep handles from becoming invisible when
 433      editing large files, we establish a minimum height by always
 434      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 435      where they would be normally; the bottom and top are in a
 436      different co-ordinate system.  */
 437   Lisp_Object start, end;
 438
 439   /* If the scroll bar handle is currently being dragged by the user,
 440      this is the number of pixels from the top of the handle to the
 441      place where the user grabbed it.  If the handle isn't currently
 442      being dragged, this is Qnil.  */
 443   Lisp_Object dragging;
 444
 445   /* t if the background of the fringe that is adjacent to a scroll
 446      bar is extended to the gap between the fringe and the bar.  */
 447   Lisp_Object fringe_extended_p;
 448 };
 449
 450 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 451 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 452
 453 #ifdef _WIN64
 454 /* Building a 64-bit C integer from two 32-bit lisp integers.  */
 455 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 32 | XINT (low))
 456
 457 /* Setting two lisp integers to the low and high words of a 64-bit C int.  */
 458 #define SCROLL_BAR_UNPACK(low, high, int64) \
 459   (XSETINT ((low),   ((DWORDLONG)(int64))        & 0xffffffff), \
 460    XSETINT ((high), ((DWORDLONG)(int64) >> 32) & 0xffffffff))
 461 #else  /* not _WIN64 */
 462 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 463 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 464
 465 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 466 #define SCROLL_BAR_UNPACK(low, high, int32) \
 467   (XSETINT ((low),   (int32)        & 0xffff), \
 468    XSETINT ((high), ((int32) >> 16) & 0xffff))
 469 #endif  /* not _WIN64 */
 470
 471 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 472 #define SCROLL_BAR_W32_WINDOW(ptr) \
 473   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 474
 475 /* Store a window id in a struct scroll_bar.  */
 476 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 477   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (intptr_t) id))
 478
 479 /* Extract the X widget of the scroll bar from a struct scroll_bar.  */
 480 #define SCROLL_BAR_X_WIDGET(ptr) \
 481   ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high))
 482
 483 /* Store a widget id in a struct scroll_bar.  */
 484 #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \
 485   (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w))
 486
 487 /* Return the inside width of a vertical scroll bar, given the outside
 488    width.  */
 489 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 490   ((width) \
 491    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 492    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 493    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 494
 495 /* Return the length of the rectangle within which the top of the
 496    handle must stay.  This isn't equivalent to the inside height,
 497    because the scroll bar handle has a minimum height.
 498
 499    This is the real range of motion for the scroll bar, so when we're
 500    scaling buffer positions to scroll bar positions, we use this, not
 501    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 502 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 503   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 504
 505 /* Return the inside height of vertical scroll bar, given the outside
 506    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 507 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 508   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 509
 510
 511 /* Border widths for scroll bars.
 512
 513    Scroll bar windows don't have any borders; their border width is
 514    set to zero, and we redraw borders ourselves.  This makes the code
 515    a bit cleaner, since we don't have to convert between outside width
 516    (used when relating to the rest of the screen) and inside width
 517    (used when sizing and drawing the scroll bar window itself).
 518
 519    The handle moves up and down/back and forth in a rectangle inset
 520    from the edges of the scroll bar.  These are widths by which we
 521    inset the handle boundaries from the scroll bar edges.  */
 522 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 523 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 524 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 525 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 526
 527 /* Minimum lengths for scroll bar handles, in pixels.  */
 528 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 529
 530 /* Trimming off a few pixels from each side prevents
 531    text from glomming up against the scroll bar */
 532 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 533
 534 \f
 535 struct frame;  /* from frame.h */
 536
 537 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 538 extern void w32_clear_window (struct frame *);
 539
 540 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 541 do { \
 542     RECT rect; \
 543     rect.left = x; \
 544     rect.top = y; \
 545     rect.right = x + nx; \
 546     rect.bottom = y + ny; \
 547     w32_fill_rect (f,hdc,pix,&rect); \
 548 } while (0)
 549
 550 #define w32_clear_rect(f,hdc,lprect) \
 551   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 552
 553 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 554   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 555
 556 /* Define for earlier versions of Visual C */
 557 #ifndef WM_MOUSEWHEEL
 558 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 559 #endif /* WM_MOUSEWHEEL */
 560 #ifndef MSH_MOUSEWHEEL
 561 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 562 #endif /* MSH_MOUSEWHEEL */
 563 #ifndef WM_XBUTTONDOWN
 564 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 565 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 566 #endif /* WM_XBUTTONDOWN */
 567 #ifndef WM_MOUSEHWHEEL
 568 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 569 #endif /* WM_MOUSEHWHEEL  */
 570 #ifndef WM_APPCOMMAND
 571 #define WM_APPCOMMAND 0x319
 572 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 573 #endif
 574 #ifndef WM_UNICHAR
 575 #define WM_UNICHAR 0x109
 576 #endif
 577 #ifndef UNICODE_NOCHAR
 578 #define UNICODE_NOCHAR 0xFFFF
 579 #endif
 580
 581 #define WM_EMACS_START                 (WM_USER + 1)
 582 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 583 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 584 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 585 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 586 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 587 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 588 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 589 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 590 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 591 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 592 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 593 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 594 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 595 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 596 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 597 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 598 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 599 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 600 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 601 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 602 #define WM_EMACS_PAINT                 (WM_EMACS_START + 20)
 603 #define WM_EMACS_BRINGTOTOP            (WM_EMACS_START + 21)
 604 #define WM_EMACS_INPUT_READY           (WM_EMACS_START + 22)
 605 #define WM_EMACS_END                   (WM_EMACS_START + 23)
 606
 607 #define WND_FONTWIDTH_INDEX    (0)
 608 #define WND_LINEHEIGHT_INDEX   (4)
 609 #define WND_BORDER_INDEX       (8)
 610 #define WND_SCROLLBAR_INDEX    (12)
 611 #define WND_BACKGROUND_INDEX   (16)
 612 #define WND_LAST_INDEX         (20)
 613
 614 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 615
 616 extern DWORD dwWindowsThreadId;
 617 extern HANDLE hWindowsThread;
 618 extern DWORD dwMainThreadId;
 619 extern HANDLE hMainThread;
 620
 621 typedef struct W32Msg {
 622     MSG msg;
 623     DWORD dwModifiers;
 624     RECT rect;
 625 } W32Msg;
 626
 627 extern BOOL prepend_msg (W32Msg *lpmsg);
 628
 629 /* Structure for recording message when input thread must return a
 630    result that depends on lisp thread to compute.  Lisp thread can
 631    complete deferred messages out of order.  */
 632 typedef struct deferred_msg
 633 {
 634   struct deferred_msg * next;
 635   W32Msg                w32msg;
 636   LRESULT               result;
 637   int                   completed;
 638 } deferred_msg;
 639
 640 extern CRITICAL_SECTION critsect;
 641
 642 extern void init_crit (void);
 643 extern void delete_crit (void);
 644
 645 extern void signal_quit (void);
 646
 647 #define enter_crit() EnterCriticalSection (&critsect)
 648 #define leave_crit() LeaveCriticalSection (&critsect)
 649
 650 extern void select_palette (struct frame * f, HDC hdc);
 651 extern void deselect_palette (struct frame * f, HDC hdc);
 652 extern HDC get_frame_dc (struct frame * f);
 653 extern int release_frame_dc (struct frame * f, HDC hDC);
 654
 655 extern void drain_message_queue (void);
 656
 657 extern BOOL get_next_msg (W32Msg *, BOOL);
 658 extern BOOL post_msg (W32Msg *);
 659 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 660
 661 extern BOOL parse_button (int, int, int *, int *);
 662
 663 extern void w32_sys_ring_bell (struct frame *f);
 664 extern void x_delete_display (struct w32_display_info *dpyinfo);
 665 extern void w32_initialize_display_info (Lisp_Object);
 666 extern void initialize_w32_display (struct terminal *);
 667
 668
 669 /* Keypad command key support.  W32 doesn't have virtual keys defined
 670    for the function keys on the keypad (they are mapped to the standard
 671    function keys), so we define our own.  */
 672 #define VK_NUMPAD_BEGIN         0x92
 673 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 674 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 675 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 676 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 677 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 678 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 679 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 680 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 681 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 682 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 683 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 684 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 685
 686 #ifndef VK_LWIN
 687 /* Older compiler environments don't have these defined.  */
 688 #define VK_LWIN                 0x5B
 689 #define VK_RWIN                 0x5C
 690 #define VK_APPS                 0x5D
 691 #endif
 692
 693 /* Support for treating Windows and Apps keys as modifiers.  These
 694    constants must not overlap with any of the dwControlKeyState flags in
 695    KEY_EVENT_RECORD.  */
 696 #define LEFT_WIN_PRESSED       0x8000
 697 #define RIGHT_WIN_PRESSED      0x4000
 698 #define APPS_PRESSED           0x2000
 699
 700 /* The current ANSI input codepage for GUI sessions.  */
 701 extern int w32_keyboard_codepage;
 702
 703 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 704    (even though they are supported on 98 and ME.  */
 705 #ifndef WM_MOUSELEAVE
 706 #define WM_MOUSELEAVE 0x02A3
 707 #define TME_LEAVE 0x00000002;
 708
 709 typedef struct tagTRACKMOUSEEVENT
 710 {
 711   DWORD cbSize;
 712   DWORD dwFlags;
 713   HWND hwndTrack;
 714   DWORD dwHoverTime;
 715 } TRACKMOUSEEVENT;
 716 #endif
 717
 718 struct image;
 719 struct face;
 720
 721 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 722 struct frame * check_x_frame (Lisp_Object);
 723
 724 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 725 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 726     IN HMENU,
 727     IN UINT,
 728     IN UINT_PTR,
 729     IN LPCWSTR);
 730
 731 extern HWND w32_system_caret_hwnd;
 732 extern int w32_system_caret_height;
 733 extern int w32_system_caret_x;
 734 extern int w32_system_caret_y;
 735
 736 #ifdef _MSC_VER
 737 #ifndef EnumSystemLocales
 738 /* MSVC headers define these only for _WIN32_WINNT >= 0x0500.  */
 739 typedef BOOL (CALLBACK *LOCALE_ENUMPROCA)(LPSTR);
 740 typedef BOOL (CALLBACK *LOCALE_ENUMPROCW)(LPWSTR);
 741 BOOL WINAPI EnumSystemLocalesA(LOCALE_ENUMPROCA,DWORD);
 742 BOOL WINAPI EnumSystemLocalesW(LOCALE_ENUMPROCW,DWORD);
 743 #ifdef UNICODE
 744 #define EnumSystemLocales EnumSystemLocalesW
 745 #else
 746 #define EnumSystemLocales EnumSystemLocalesA
 747 #endif
 748 #endif
 749 #endif
 750
 751 #if EMACSDEBUG
 752 extern const char*
 753 w32_name_of_message (UINT msg);
 754 #endif /* EMACSDEBUG */
 755
 756 extern void syms_of_w32term (void);
 757 extern void syms_of_w32menu (void);
 758 extern void syms_of_w32fns (void);
 759
 760 extern void globals_of_w32menu (void);
 761 extern void globals_of_w32fns (void);
 762
 763 #ifdef CYGWIN
 764 extern int w32_message_fd;
 765 #endif /* CYGWIN */