src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft Windows API.
   2    Copyright (C) 1995, 2001-2013 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 extern void w32_fullscreen_rect (HWND hwnd, int fsmode, RECT normal,
  75                                  RECT *rect);
  76
  77 \f
  78 /* For each display (currently only one on w32), we have a structure that
  79    records information about it.  */
  80
  81 struct w32_display_info
  82 {
  83   /* Chain of all w32_display_info structures.  */
  84   struct w32_display_info *next;
  85
  86   /* The generic display parameters corresponding to this w32 display.  */
  87   struct terminal *terminal;
  88
  89   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).  */
  90   Lisp_Object name_list_element;
  91
  92   /* Number of frames that are on this display.  */
  93   int reference_count;
  94
  95   /* Dots per inch of the screen.  */
  96   double resx, resy;
  97
  98   /* Number of planes on this screen.  */
  99   int n_planes;
 100
 101   /* Number of bits per pixel on this screen.  */
 102   int n_cbits;
 103
 104   /* Mask of things that cause the mouse to be grabbed.  */
 105   int grabbed;
 106
 107   /* Emacs bitmap-id of the default icon bitmap for this frame.
 108      Or -1 if none has been allocated yet.  */
 109   ptrdiff_t icon_bitmap_id;
 110
 111   /* The root window of this screen.  */
 112   Window root_window;
 113
 114   /* The cursor to use for vertical scroll bars.  */
 115   Cursor vertical_scroll_bar_cursor;
 116
 117   /* Resource data base */
 118   XrmDatabase xrdb;
 119
 120   /* color palette information.  */
 121   int has_palette;
 122   struct w32_palette_entry * color_list;
 123   unsigned num_colors;
 124   HPALETTE palette;
 125
 126   /* deferred action flags checked when starting frame update.  */
 127   int regen_palette;
 128
 129   /* Keystroke that has been faked by Emacs and will be ignored when
 130      received; value is reset after key is received.  */
 131   int faked_key;
 132
 133   /* Minimum width over all characters in all fonts in font_table.  */
 134   int smallest_char_width;
 135
 136   /* Minimum font height over all fonts in font_table.  */
 137   int smallest_font_height;
 138
 139   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 140   XGCValues *scratch_cursor_gc;
 141
 142   /* Information about the range of text currently shown in
 143      mouse-face.  */
 144   Mouse_HLInfo mouse_highlight;
 145
 146   char *w32_id_name;
 147
 148   /* The number of fonts actually stored in w32_font_table.
 149      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 150      n_fonts <= font_table_size. and font_table[i].name != 0. */
 151   int n_fonts;
 152
 153   /* Pointer to bitmap records.  */
 154   struct w32_bitmap_record *bitmaps;
 155
 156   /* Allocated size of bitmaps field.  */
 157   ptrdiff_t bitmaps_size;
 158
 159   /* Last used bitmap index.  */
 160   ptrdiff_t bitmaps_last;
 161
 162   /* The frame (if any) which has the window that has keyboard focus.
 163      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 164      that a mere EnterNotify event can set this; if you need to know the
 165      last frame specified in a FocusIn or FocusOut event, use
 166      w32_focus_event_frame.  */
 167   struct frame *w32_focus_frame;
 168
 169   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 170      separate from w32_focus_frame, because whether or not LeaveNotify
 171      events cause us to lose focus depends on whether or not we have
 172      received a FocusIn event for it.  */
 173   struct frame *w32_focus_event_frame;
 174
 175   /* The frame which currently has the visual highlight, and should get
 176      keyboard input (other sorts of input have the frame encoded in the
 177      event).  It points to the focus frame's selected window's
 178      frame.  It differs from w32_focus_frame when we're using a global
 179      minibuffer.  */
 180   struct frame *x_highlight_frame;
 181
 182   /* The frame waiting to be auto-raised in w32_read_socket.  */
 183   struct frame *w32_pending_autoraise_frame;
 184
 185   /* The frame where the mouse was last time we reported a mouse event.  */
 186   struct frame *last_mouse_frame;
 187
 188   /* The frame where the mouse was last time we reported a mouse motion.  */
 189   struct frame *last_mouse_motion_frame;
 190
 191   /* The frame where the mouse was last time we reported a mouse position.  */
 192   struct frame *last_mouse_glyph_frame;
 193
 194   /* Position where the mouse was last time we reported a motion.
 195      This is a position on last_mouse_motion_frame.  */
 196   int last_mouse_motion_x;
 197   int last_mouse_motion_y;
 198
 199   /* Where the mouse was last time we reported a mouse position.
 200      This is a rectangle on last_mouse_glyph_frame.  */
 201   RECT last_mouse_glyph;
 202
 203   /* The scroll bar in which the last motion event occurred.  */
 204   struct scroll_bar *last_mouse_scroll_bar;
 205
 206   /* Mouse position on the scroll bar above.
 207      FIXME: shouldn't it be a member of struct scroll_bar?  */
 208   int last_mouse_scroll_bar_pos;
 209
 210   /* Time of last mouse movement.  */
 211   Time last_mouse_movement_time;
 212 };
 213
 214 /* This is a chain of structures for all the displays currently in use.  */
 215 extern struct w32_display_info *x_display_list;
 216 extern struct w32_display_info one_w32_display_info;
 217
 218 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 219
 220 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 221
 222 Lisp_Object display_x_get_resource (struct w32_display_info *,
 223                                     Lisp_Object, Lisp_Object,
 224                                     Lisp_Object, Lisp_Object);
 225
 226 /* also defined in xterm.h XXX: factor out to common header */
 227
 228 extern struct w32_display_info *w32_term_init (Lisp_Object,
 229                                                char *, char *);
 230 extern int w32_defined_color (struct frame *f, const char *color,
 231                               XColor *color_def, int alloc);
 232 extern void x_set_window_size (struct frame *f, int change_grav,
 233                               int cols, int rows);
 234 extern int x_display_pixel_height (struct w32_display_info *);
 235 extern int x_display_pixel_width (struct w32_display_info *);
 236 extern Lisp_Object x_get_focus_frame (struct frame *);
 237 extern void x_set_mouse_position (struct frame *f, int h, int v);
 238 extern void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
 239 extern void x_make_frame_visible (struct frame *f);
 240 extern void x_make_frame_invisible (struct frame *f);
 241 extern void x_iconify_frame (struct frame *f);
 242 extern void x_set_frame_alpha (struct frame *f);
 243 extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 244 extern void x_set_tool_bar_lines (struct frame *f,
 245                                   Lisp_Object value,
 246                                   Lisp_Object oldval);
 247 extern void x_activate_menubar (struct frame *);
 248 extern int x_bitmap_icon (struct frame *, Lisp_Object);
 249 extern void initialize_frame_menubar (struct frame *);
 250 extern void x_free_frame_resources (struct frame *);
 251 extern void x_real_positions (struct frame *, int *, int *);
 252
 253 /* w32inevt.c */
 254 extern int w32_kbd_patch_key (KEY_EVENT_RECORD *event, int cpId);
 255 extern int w32_kbd_mods_to_emacs (DWORD mods, WORD key);
 256
 257
 258 extern Lisp_Object x_get_focus_frame (struct frame *);
 259
 260 /* w32console.c */
 261 extern void w32con_hide_cursor (void);
 262 extern void w32con_show_cursor (void);
 263
 264 \f
 265 #define PIX_TYPE COLORREF
 266
 267 /* Each W32 frame object points to its own struct w32_display object
 268    in the output_data.w32 field.  The w32_display structure contains all
 269    the information that is specific to W32 windows.  */
 270
 271 /* Put some things in x_output for compatibility.
 272    NTEMACS_TODO: Move all common things here to eliminate unnecessary
 273    diffs between X and w32 code.  */
 274 struct x_output
 275 {
 276   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 277      frame, or IMPLICIT if we received an EnterNotify.
 278      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 279   int focus_state;
 280 };
 281
 282 enum
 283 {
 284   /* Values for focus_state, used as bit mask.
 285      EXPLICIT means we received a FocusIn for the frame and know it has
 286      the focus.  IMPLICIT means we received an EnterNotify and the frame
 287      may have the focus if no window manager is running.
 288      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 289   FOCUS_NONE     = 0,
 290   FOCUS_IMPLICIT = 1,
 291   FOCUS_EXPLICIT = 2
 292 };
 293
 294 struct w32_output
 295 {
 296   /* Placeholder for things accessed through output_data.x.  */
 297   struct x_output x_compatible;
 298
 299   /* Menubar "widget" handle.  */
 300   HMENU menubar_widget;
 301
 302   /* Original palette (used to deselect real palette after drawing) */
 303   HPALETTE old_palette;
 304
 305   /* Here are the Graphics Contexts for the default font.  */
 306   XGCValues *cursor_gc;                         /* cursor drawing */
 307
 308   /* The window used for this frame.
 309      May be zero while the frame object is being created
 310      and the window has not yet been created.  */
 311   Window window_desc;
 312
 313   /* The window that is the parent of this window.
 314      Usually this is a window that was made by the window manager,
 315      but it can be the root window, and it can be explicitly specified
 316      (see the explicit_parent field, below).  */
 317   Window parent_desc;
 318
 319   /* Default ASCII font of this frame. */
 320   struct font *font;
 321
 322   /* The baseline offset of the default ASCII font.  */
 323   int baseline_offset;
 324
 325   /* If a fontset is specified for this frame instead of font, this
 326      value contains an ID of the fontset, else -1.  */
 327   int fontset;
 328
 329   /* Pixel values used for various purposes.
 330      border_pixel may be -1 meaning use a gray tile.  */
 331   COLORREF cursor_pixel;
 332   COLORREF border_pixel;
 333   COLORREF mouse_pixel;
 334   COLORREF cursor_foreground_pixel;
 335
 336   /* Foreground color for scroll bars.  A value of -1 means use the
 337      default (black for non-toolkit scroll bars).  */
 338   COLORREF scroll_bar_foreground_pixel;
 339
 340   /* Background color for scroll bars.  A value of -1 means use the
 341      default (background color of the frame for non-toolkit scroll
 342      bars).  */
 343   COLORREF scroll_bar_background_pixel;
 344
 345   /* Descriptor for the cursor in use for this window.  */
 346   Cursor text_cursor;
 347   Cursor nontext_cursor;
 348   Cursor modeline_cursor;
 349   Cursor hand_cursor;
 350   Cursor hourglass_cursor;
 351   Cursor horizontal_drag_cursor;
 352
 353   /* Non-zero means hourglass cursor is currently displayed.  */
 354   unsigned hourglass_p : 1;
 355
 356   /* Non-hourglass cursor that is currently active.  */
 357   Cursor current_cursor;
 358
 359   DWORD dwStyle;
 360
 361   /* This is the Emacs structure for the display this frame is on.  */
 362   /* struct w32_display_info *display_info; */
 363
 364   /* Nonzero means our parent is another application's window
 365      and was explicitly specified.  */
 366   unsigned explicit_parent : 1;
 367
 368   /* Nonzero means tried already to make this frame visible.  */
 369   unsigned asked_for_visible : 1;
 370
 371   /* Nonzero means menubar is currently active.  */
 372   unsigned menubar_active : 1;
 373
 374   /* Relief GCs, colors etc.  */
 375   struct relief
 376   {
 377     XGCValues *gc;
 378     unsigned long pixel;
 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   /* Frame geometry and full-screen mode before it was resized by
 387      specifying the 'fullscreen' frame parameter.  Used to restore the
 388      geometry when 'fullscreen' is reset to nil.  */
 389   WINDOWPLACEMENT normal_placement;
 390   int prev_fsmode;
 391 };
 392
 393 extern struct w32_output w32term_display;
 394
 395 /* Return the X output data for frame F.  */
 396 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 397
 398 /* Return the window associated with the frame F.  */
 399 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 400 #define FRAME_X_WINDOW(f) FRAME_W32_WINDOW (f)
 401
 402 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 403 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 404 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 405
 406 /* This gives the w32_display_info structure for the display F is on.  */
 407 #define FRAME_DISPLAY_INFO(f) (&one_w32_display_info)
 408
 409 /* This is the `Display *' which frame F is on.  */
 410 #define FRAME_X_DISPLAY(f) (0)
 411
 412 #define FRAME_NORMAL_PLACEMENT(F) ((F)->output_data.w32->normal_placement)
 413 #define FRAME_PREV_FSMODE(F)      ((F)->output_data.w32->prev_fsmode)
 414
 415 \f
 416 /* W32-specific scroll bar stuff.  */
 417
 418 /* We represent scroll bars as lisp vectors.  This allows us to place
 419    references to them in windows without worrying about whether we'll
 420    end up with windows referring to dead scroll bars; the garbage
 421    collector will free it when its time comes.
 422
 423    We use struct scroll_bar as a template for accessing fields of the
 424    vector.  */
 425
 426 struct scroll_bar {
 427
 428   /* This field is shared by all vectors.  */
 429   struct vectorlike_header header;
 430
 431   /* The window we're a scroll bar for.  */
 432   Lisp_Object window;
 433
 434   /* The next and previous in the chain of scroll bars in this frame.  */
 435   Lisp_Object next, prev;
 436
 437   /* The window representing this scroll bar.  Since this is a full
 438      32-bit quantity, we store it split into two 32-bit values.  */
 439   Lisp_Object w32_window_low, w32_window_high;
 440
 441   /* Same as above for the widget.  */
 442   Lisp_Object w32_widget_low, w32_widget_high;
 443
 444   /* The position and size of the scroll bar in pixels, relative to the
 445      frame.  */
 446   Lisp_Object top, left, width, height;
 447
 448   /* The starting and ending positions of the handle, relative to the
 449      handle area (i.e. zero is the top position, not
 450      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 451      hasn't been drawn yet.
 452
 453      These are not actually the locations where the beginning and end
 454      are drawn; in order to keep handles from becoming invisible when
 455      editing large files, we establish a minimum height by always
 456      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 457      where they would be normally; the bottom and top are in a
 458      different co-ordinate system.  */
 459   Lisp_Object start, end;
 460
 461   /* If the scroll bar handle is currently being dragged by the user,
 462      this is the number of pixels from the top of the handle to the
 463      place where the user grabbed it.  If the handle isn't currently
 464      being dragged, this is Qnil.  */
 465   Lisp_Object dragging;
 466
 467   /* 1 if the background of the fringe that is adjacent to a scroll
 468      bar is extended to the gap between the fringe and the bar.  */
 469   /* Note: this could be a bit field, but we need to take its address
 470      in ALLOCATE_PSEUDOVECTOR (see x_scroll_bar_create).  */
 471   bool fringe_extended_p;
 472 };
 473
 474 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 475 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 476
 477 #ifdef _WIN64
 478 /* Building a 64-bit C integer from two 32-bit lisp integers.  */
 479 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 32 | XINT (low))
 480
 481 /* Setting two lisp integers to the low and high words of a 64-bit C int.  */
 482 #define SCROLL_BAR_UNPACK(low, high, int64) \
 483   (XSETINT ((low),   ((DWORDLONG)(int64))        & 0xffffffff), \
 484    XSETINT ((high), ((DWORDLONG)(int64) >> 32) & 0xffffffff))
 485 #else  /* not _WIN64 */
 486 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 487 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 488
 489 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 490 #define SCROLL_BAR_UNPACK(low, high, int32) \
 491   (XSETINT ((low),   (int32)        & 0xffff), \
 492    XSETINT ((high), ((int32) >> 16) & 0xffff))
 493 #endif  /* not _WIN64 */
 494
 495 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 496 #define SCROLL_BAR_W32_WINDOW(ptr) \
 497   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 498
 499 /* Store a window id in a struct scroll_bar.  */
 500 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 501   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (intptr_t) id))
 502
 503 /* Return the inside width of a vertical scroll bar, given the outside
 504    width.  */
 505 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 506   ((width) \
 507    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 508    - VERTICAL_SCROLL_BAR_RIGHT_BORDER)
 509
 510 /* Return the length of the rectangle within which the top of the
 511    handle must stay.  This isn't equivalent to the inside height,
 512    because the scroll bar handle has a minimum height.
 513
 514    This is the real range of motion for the scroll bar, so when we're
 515    scaling buffer positions to scroll bar positions, we use this, not
 516    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 517 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 518   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 519
 520 /* Return the inside height of vertical scroll bar, given the outside
 521    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 522 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 523   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 524
 525
 526 /* Border widths for scroll bars.
 527
 528    Scroll bar windows don't have any borders; their border width is
 529    set to zero, and we redraw borders ourselves.  This makes the code
 530    a bit cleaner, since we don't have to convert between outside width
 531    (used when relating to the rest of the screen) and inside width
 532    (used when sizing and drawing the scroll bar window itself).
 533
 534    The handle moves up and down/back and forth in a rectangle inset
 535    from the edges of the scroll bar.  These are widths by which we
 536    inset the handle boundaries from the scroll bar edges.  */
 537 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 538 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 539 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 540 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 541
 542 /* Minimum lengths for scroll bar handles, in pixels.  */
 543 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 544
 545 struct frame;  /* from frame.h */
 546
 547 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 548 extern void w32_clear_window (struct frame *);
 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_BRINGTOTOP            (WM_EMACS_START + 21)
 614 #define WM_EMACS_INPUT_READY           (WM_EMACS_START + 22)
 615 #define WM_EMACS_FILENOTIFY            (WM_EMACS_START + 23)
 616 #define WM_EMACS_END                   (WM_EMACS_START + 24)
 617
 618 #define WND_FONTWIDTH_INDEX    (0)
 619 #define WND_LINEHEIGHT_INDEX   (4)
 620 #define WND_BORDER_INDEX       (8)
 621 #define WND_SCROLLBAR_INDEX    (12)
 622 #define WND_BACKGROUND_INDEX   (16)
 623 #define WND_LAST_INDEX         (20)
 624
 625 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 626
 627 extern DWORD dwWindowsThreadId;
 628 extern HANDLE hWindowsThread;
 629 extern DWORD dwMainThreadId;
 630 extern HANDLE hMainThread;
 631
 632 typedef struct W32Msg {
 633     MSG msg;
 634     DWORD dwModifiers;
 635     RECT rect;
 636 } W32Msg;
 637
 638 extern BOOL prepend_msg (W32Msg *lpmsg);
 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 (void);
 654 extern void delete_crit (void);
 655
 656 extern void signal_quit (void);
 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 int drain_message_queue (void);
 667
 668 extern BOOL get_next_msg (W32Msg *, BOOL);
 669 extern BOOL post_msg (W32Msg *);
 670 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 671
 672 extern BOOL parse_button (int, int, int *, int *);
 673
 674 extern void w32_sys_ring_bell (struct frame *f);
 675 extern void x_delete_display (struct w32_display_info *dpyinfo);
 676
 677 extern volatile int notification_buffer_in_use;
 678 extern BYTE file_notifications[16384];
 679 extern DWORD notifications_size;
 680 extern void *notifications_desc;
 681 extern Lisp_Object w32_get_watch_object (void *);
 682 extern Lisp_Object lispy_file_action (DWORD);
 683 extern int handle_file_notifications (struct input_event *);
 684
 685 extern void w32_initialize_display_info (Lisp_Object);
 686 extern void initialize_w32_display (struct terminal *, int *, int *);
 687
 688 /* Keypad command key support.  W32 doesn't have virtual keys defined
 689    for the function keys on the keypad (they are mapped to the standard
 690    function keys), so we define our own.  */
 691 #define VK_NUMPAD_BEGIN         0x92
 692 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 693 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 694 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 695 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 696 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 697 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 698 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 699 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 700 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 701 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 702 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 703 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 704
 705 #ifndef VK_LWIN
 706 /* Older compiler environments don't have these defined.  */
 707 #define VK_LWIN                 0x5B
 708 #define VK_RWIN                 0x5C
 709 #define VK_APPS                 0x5D
 710 #endif
 711
 712 /* Support for treating Windows and Apps keys as modifiers.  These
 713    constants must not overlap with any of the dwControlKeyState flags in
 714    KEY_EVENT_RECORD.  */
 715 #define LEFT_WIN_PRESSED       0x8000
 716 #define RIGHT_WIN_PRESSED      0x4000
 717 #define APPS_PRESSED           0x2000
 718
 719 /* The current ANSI input codepage for GUI sessions.  */
 720 extern int w32_keyboard_codepage;
 721
 722 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 723    (even though they are supported on 98 and ME.  */
 724 #ifndef WM_MOUSELEAVE
 725 #define WM_MOUSELEAVE 0x02A3
 726 #define TME_LEAVE 0x00000002;
 727
 728 typedef struct tagTRACKMOUSEEVENT
 729 {
 730   DWORD cbSize;
 731   DWORD dwFlags;
 732   HWND hwndTrack;
 733   DWORD dwHoverTime;
 734 } TRACKMOUSEEVENT;
 735 #endif
 736
 737 struct image;
 738 struct face;
 739
 740 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 741
 742 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 743 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 744     IN HMENU,
 745     IN UINT,
 746     IN UINT_PTR,
 747     IN LPCWSTR);
 748
 749 extern HWND w32_system_caret_hwnd;
 750 extern int w32_system_caret_height;
 751 extern int w32_system_caret_x;
 752 extern int w32_system_caret_y;
 753 extern struct window *w32_system_caret_window;
 754 extern int w32_system_caret_hdr_height;
 755 extern int w32_system_caret_mode_height;
 756
 757 #ifdef _MSC_VER
 758 #ifndef EnumSystemLocales
 759 /* MSVC headers define these only for _WIN32_WINNT >= 0x0500.  */
 760 typedef BOOL (CALLBACK *LOCALE_ENUMPROCA)(LPSTR);
 761 typedef BOOL (CALLBACK *LOCALE_ENUMPROCW)(LPWSTR);
 762 BOOL WINAPI EnumSystemLocalesA(LOCALE_ENUMPROCA,DWORD);
 763 BOOL WINAPI EnumSystemLocalesW(LOCALE_ENUMPROCW,DWORD);
 764 #ifdef UNICODE
 765 #define EnumSystemLocales EnumSystemLocalesW
 766 #else
 767 #define EnumSystemLocales EnumSystemLocalesA
 768 #endif
 769 #endif
 770 #endif
 771
 772 #if EMACSDEBUG
 773 extern const char*
 774 w32_name_of_message (UINT msg);
 775 #endif /* EMACSDEBUG */
 776
 777 #ifdef NTGUI_UNICODE
 778 extern Lisp_Object ntgui_encode_system (Lisp_Object str);
 779 #define GUISTR(x) (L ## x)
 780 #define GUI_ENCODE_FILE GUI_ENCODE_SYSTEM
 781 #define GUI_ENCODE_SYSTEM(x) ntgui_encode_system (x)
 782 #define GUI_FN(fn) fn ## W
 783 typedef wchar_t guichar_t;
 784 #else /* !NTGUI_UNICODE */
 785 #define GUISTR(x) x
 786 #define GUI_ENCODE_FILE ENCODE_FILE
 787 #define GUI_ENCODE_SYSTEM ENCODE_SYSTEM
 788 #define GUI_FN(fn) fn
 789 typedef char guichar_t;
 790 #endif /* NTGUI_UNICODE */
 791
 792 #define GUI_SDATA(x) ((guichar_t*) SDATA (x))
 793
 794 #if defined HAVE_DIALOGS
 795 extern Lisp_Object w32_popup_dialog (struct frame *, Lisp_Object, Lisp_Object);
 796 #endif
 797
 798 extern void syms_of_w32term (void);
 799 extern void syms_of_w32menu (void);
 800 extern void syms_of_w32fns (void);
 801
 802 extern void globals_of_w32menu (void);
 803 extern void globals_of_w32fns (void);
 804 extern void globals_of_w32notify (void);
 805
 806 #ifdef CYGWIN
 807 extern int w32_message_fd;
 808 #endif /* CYGWIN */