code.delx.au - gnu-emacs/blob - src/w32term.h

   1 /* Definitions and headers for communication on the Microsoft Windows API.
   2    Copyright (C) 1995, 2001-2016 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 (at
   9 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 /* Stack alignment stuff.  Every CALLBACK function should have the
  26    ALIGN_STACK attribute if it manipulates Lisp objects, because
  27    Windows x86 32-bit ABI only guarantees 4-byte stack alignment, and
  28    that is what we will get when a Windows function calls us.  The
  29    ALIGN_STACK attribute forces GCC to emit a preamble code to
  30    re-align the stack at function entry.  Further details about this
  31    can be found in http://www.peterstock.co.uk/games/mingw_sse/.  */
  32 #ifdef __GNUC__
  33 # if USE_STACK_LISP_OBJECTS && !defined _WIN64 && !defined __x86_64__   \
  34   && __GNUC__ + (__GNUC_MINOR__ > 1) >= 5
  35 #  define ALIGN_STACK __attribute__((force_align_arg_pointer))
  36 # else
  37 #  define ALIGN_STACK
  38 # endif  /* USE_STACK_LISP_OBJECTS */
  39 #endif
  40
  41 \f
  42 #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0)
  43 #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255)
  44
  45 #define CP_DEFAULT 1004
  46
  47 /* Indicates whether we are in the readsocket call and the message we
  48    are processing in the current loop */
  49
  50 extern MSG CurMsg;
  51 extern BOOL bUseDflt;
  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 struct w32_palette_entry {
  67   struct w32_palette_entry * next;
  68   PALETTEENTRY entry;
  69 #if 0
  70   unsigned refcount;
  71 #endif
  72 };
  73
  74 extern void w32_regenerate_palette (struct frame *f);
  75 extern void w32_fullscreen_rect (HWND hwnd, int fsmode, RECT normal,
  76                                  RECT *rect);
  77
  78 \f
  79 /* For each display (currently only one on w32), we have a structure that
  80    records information about it.  */
  81
  82 struct w32_display_info
  83 {
  84   /* Chain of all w32_display_info structures.  */
  85   struct w32_display_info *next;
  86
  87   /* The generic display parameters corresponding to this w32 display.  */
  88   struct terminal *terminal;
  89
  90   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).  */
  91   Lisp_Object name_list_element;
  92
  93   /* Number of frames that are on this display.  */
  94   int reference_count;
  95
  96   /* Dots per inch of the screen.  */
  97   double resx, resy;
  98
  99   /* Number of planes on this screen.  */
 100   int n_planes;
 101
 102   /* Number of bits per pixel on this screen.  */
 103   int n_cbits;
 104
 105   /* Mask of things that cause the mouse to be grabbed.  */
 106   int grabbed;
 107
 108   /* Emacs bitmap-id of the default icon bitmap for this frame.
 109      Or -1 if none has been allocated yet.  */
 110   ptrdiff_t icon_bitmap_id;
 111
 112   /* The root window of this screen.  */
 113   Window root_window;
 114
 115   /* The cursor to use for vertical scroll bars.  */
 116   Cursor vertical_scroll_bar_cursor;
 117
 118   /* The cursor to use for horizontal scroll bars.  */
 119   Cursor horizontal_scroll_bar_cursor;
 120
 121   /* Resource data base */
 122   XrmDatabase xrdb;
 123
 124   /* color palette information.  */
 125   int has_palette;
 126   struct w32_palette_entry * color_list;
 127   unsigned num_colors;
 128   HPALETTE palette;
 129
 130   /* deferred action flags checked when starting frame update.  */
 131   int regen_palette;
 132
 133   /* Keystroke that has been faked by Emacs and will be ignored when
 134      received; value is reset after key is received.  */
 135   int faked_key;
 136
 137   /* Minimum width over all characters in all fonts in font_table.  */
 138   int smallest_char_width;
 139
 140   /* Minimum font height over all fonts in font_table.  */
 141   int smallest_font_height;
 142
 143   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 144   XGCValues *scratch_cursor_gc;
 145
 146   /* Information about the range of text currently shown in
 147      mouse-face.  */
 148   Mouse_HLInfo mouse_highlight;
 149
 150   char *w32_id_name;
 151
 152   /* The number of fonts actually stored in w32_font_table.
 153      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 154      n_fonts <= font_table_size. and font_table[i].name != 0. */
 155   int n_fonts;
 156
 157   /* Pointer to bitmap records.  */
 158   struct w32_bitmap_record *bitmaps;
 159
 160   /* Allocated size of bitmaps field.  */
 161   ptrdiff_t bitmaps_size;
 162
 163   /* Last used bitmap index.  */
 164   ptrdiff_t bitmaps_last;
 165
 166   /* The frame (if any) which has the window that has keyboard focus.
 167      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 168      that a mere EnterNotify event can set this; if you need to know the
 169      last frame specified in a FocusIn or FocusOut event, use
 170      w32_focus_event_frame.  */
 171   struct frame *w32_focus_frame;
 172
 173   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 174      separate from w32_focus_frame, because whether or not LeaveNotify
 175      events cause us to lose focus depends on whether or not we have
 176      received a FocusIn event for it.  */
 177   struct frame *w32_focus_event_frame;
 178
 179   /* The frame which currently has the visual highlight, and should get
 180      keyboard input (other sorts of input have the frame encoded in the
 181      event).  It points to the focus frame's selected window's
 182      frame.  It differs from w32_focus_frame when we're using a global
 183      minibuffer.  */
 184   struct frame *x_highlight_frame;
 185
 186   /* The frame waiting to be auto-raised in w32_read_socket.  */
 187   struct frame *w32_pending_autoraise_frame;
 188
 189   /* Tooltip frame on this display.  */
 190   struct frame *w32_tooltip_frame;
 191
 192   /* The frame where the mouse was last time we reported a mouse event.  */
 193   struct frame *last_mouse_frame;
 194
 195   /* The frame where the mouse was last time we reported a mouse motion.  */
 196   struct frame *last_mouse_motion_frame;
 197
 198   /* The frame where the mouse was last time we reported a mouse position.  */
 199   struct frame *last_mouse_glyph_frame;
 200
 201   /* Position where the mouse was last time we reported a motion.
 202      This is a position on last_mouse_motion_frame.  */
 203   int last_mouse_motion_x;
 204   int last_mouse_motion_y;
 205
 206   /* Where the mouse was last time we reported a mouse position.
 207      This is a rectangle on last_mouse_glyph_frame.  */
 208   RECT last_mouse_glyph;
 209
 210   /* The scroll bar in which the last motion event occurred.  */
 211   struct scroll_bar *last_mouse_scroll_bar;
 212
 213   /* Mouse position on the scroll bar above.
 214      FIXME: shouldn't it be a member of struct scroll_bar?  */
 215   int last_mouse_scroll_bar_pos;
 216
 217   /* Time of last mouse movement.  */
 218   Time last_mouse_movement_time;
 219
 220   /* Value returned by last call of ShowCursor.  */
 221   int cursor_display_counter;
 222 };
 223
 224 /* This is a chain of structures for all the displays currently in use.  */
 225 extern struct w32_display_info *x_display_list;
 226 extern struct w32_display_info one_w32_display_info;
 227
 228 /* These 2 are set by w32fns.c and examined in w32term.c.  */
 229 extern HMENU current_popup_menu;
 230 extern int menubar_in_use;
 231
 232 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 233
 234 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 235
 236 /* also defined in xterm.h XXX: factor out to common header */
 237
 238 extern struct w32_display_info *w32_term_init (Lisp_Object,
 239                                                char *, char *);
 240 extern int w32_defined_color (struct frame *f, const char *color,
 241                               XColor *color_def, bool alloc_p);
 242 extern int x_display_pixel_height (struct w32_display_info *);
 243 extern int x_display_pixel_width (struct w32_display_info *);
 244 extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 245 extern void x_set_tool_bar_lines (struct frame *f,
 246                                   Lisp_Object value,
 247                                   Lisp_Object oldval);
 248 extern void x_set_internal_border_width (struct frame *f,
 249                                          Lisp_Object value,
 250                                          Lisp_Object oldval);
 251 extern void initialize_frame_menubar (struct frame *);
 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 /* w32console.c */
 258 extern void w32con_hide_cursor (void);
 259 extern void w32con_show_cursor (void);
 260
 261 \f
 262 #define PIX_TYPE COLORREF
 263
 264 /* Each W32 frame object points to its own struct w32_display object
 265    in the output_data.w32 field.  The w32_display structure contains all
 266    the information that is specific to W32 windows.  */
 267
 268 /* Put some things in x_output for compatibility.
 269    NTEMACS_TODO: Move all common things here to eliminate unnecessary
 270    diffs between X and w32 code.  */
 271 struct x_output
 272 {
 273   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 274      frame, or IMPLICIT if we received an EnterNotify.
 275      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 276   int focus_state;
 277 };
 278
 279 enum
 280 {
 281   /* Values for focus_state, used as bit mask.
 282      EXPLICIT means we received a FocusIn for the frame and know it has
 283      the focus.  IMPLICIT means we received an EnterNotify and the frame
 284      may have the focus if no window manager is running.
 285      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 286   FOCUS_NONE     = 0,
 287   FOCUS_IMPLICIT = 1,
 288   FOCUS_EXPLICIT = 2
 289 };
 290
 291 struct w32_output
 292 {
 293   /* Placeholder for things accessed through output_data.x.  */
 294   struct x_output x_compatible;
 295
 296   /* Menubar "widget" handle.  */
 297   HMENU menubar_widget;
 298
 299   /* Original palette (used to deselect real palette after drawing) */
 300   HPALETTE old_palette;
 301
 302   /* Here are the Graphics Contexts for the default font.  */
 303   XGCValues *cursor_gc;                         /* cursor drawing */
 304
 305   /* The window used for this frame.
 306      May be zero while the frame object is being created
 307      and the window has not yet been created.  */
 308   Window window_desc;
 309
 310   /* The window that is the parent of this window.
 311      Usually this is a window that was made by the window manager,
 312      but it can be the root window, and it can be explicitly specified
 313      (see the explicit_parent field, below).  */
 314   Window parent_desc;
 315
 316   /* Default ASCII font of this frame. */
 317   struct font *font;
 318
 319   /* The baseline offset of the default ASCII font.  */
 320   int baseline_offset;
 321
 322   /* If a fontset is specified for this frame instead of font, this
 323      value contains an ID of the fontset, else -1.  */
 324   int fontset;
 325
 326   /* Pixel values used for various purposes.
 327      border_pixel may be -1 meaning use a gray tile.  */
 328   COLORREF cursor_pixel;
 329   COLORREF border_pixel;
 330   COLORREF mouse_pixel;
 331   COLORREF cursor_foreground_pixel;
 332
 333   /* Foreground color for scroll bars.  A value of -1 means use the
 334      default (black for non-toolkit scroll bars).  */
 335   COLORREF scroll_bar_foreground_pixel;
 336
 337   /* Background color for scroll bars.  A value of -1 means use the
 338      default (background color of the frame for non-toolkit scroll
 339      bars).  */
 340   COLORREF scroll_bar_background_pixel;
 341
 342   /* Descriptor for the cursor in use for this window.  */
 343   Cursor text_cursor;
 344   Cursor nontext_cursor;
 345   Cursor modeline_cursor;
 346   Cursor hand_cursor;
 347   Cursor hourglass_cursor;
 348   Cursor horizontal_drag_cursor;
 349   Cursor vertical_drag_cursor;
 350
 351   /* Non-zero means hourglass cursor is currently displayed.  */
 352   unsigned hourglass_p : 1;
 353
 354   /* Non-hourglass cursor that is currently active.  */
 355   Cursor current_cursor;
 356
 357   DWORD dwStyle;
 358
 359   /* This is the Emacs structure for the display this frame is on.  */
 360   /* struct w32_display_info *display_info; */
 361
 362   /* Nonzero means our parent is another application's window
 363      and was explicitly specified.  */
 364   unsigned explicit_parent : 1;
 365
 366   /* Nonzero means tried already to make this frame visible.  */
 367   unsigned asked_for_visible : 1;
 368
 369   /* Nonzero means menubar is currently active.  */
 370   unsigned menubar_active : 1;
 371
 372   /* Relief GCs, colors etc.  */
 373   struct relief
 374   {
 375     XGCValues *gc;
 376     unsigned long pixel;
 377   }
 378   black_relief, white_relief;
 379
 380   /* The background for which the above relief GCs were set up.
 381      They are changed only when a different background is involved.  */
 382   unsigned long relief_background;
 383
 384   /* Frame geometry and full-screen mode before it was resized by
 385      specifying the 'fullscreen' frame parameter.  Used to restore the
 386      geometry when 'fullscreen' is reset to nil.  */
 387   WINDOWPLACEMENT normal_placement;
 388   int prev_fsmode;
 389 };
 390
 391 extern struct w32_output w32term_display;
 392
 393 /* Return the X output data for frame F.  */
 394 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 395
 396 /* Return the window associated with the frame F.  */
 397 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 398 #define FRAME_X_WINDOW(f) FRAME_W32_WINDOW (f)
 399
 400 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 401 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 402 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 403
 404 /* This gives the w32_display_info structure for the display F is on.  */
 405 #define FRAME_DISPLAY_INFO(f) ((void) (f), (&one_w32_display_info))
 406
 407 /* This is the `Display *' which frame F is on.  */
 408 #define FRAME_X_DISPLAY(f) (0)
 409
 410 #define FRAME_NORMAL_PLACEMENT(F) ((F)->output_data.w32->normal_placement)
 411 #define FRAME_PREV_FSMODE(F)      ((F)->output_data.w32->prev_fsmode)
 412
 413 \f
 414 /* W32-specific scroll bar stuff.  */
 415
 416 /* We represent scroll bars as lisp vectors.  This allows us to place
 417    references to them in windows without worrying about whether we'll
 418    end up with windows referring to dead scroll bars; the garbage
 419    collector will free it when its time comes.
 420
 421    We use struct scroll_bar as a template for accessing fields of the
 422    vector.  */
 423
 424 struct scroll_bar {
 425
 426   /* This field is shared by all vectors.  */
 427   struct vectorlike_header header;
 428
 429   /* The window we're a scroll bar for.  */
 430   Lisp_Object window;
 431
 432   /* The next and previous in the chain of scroll bars in this frame.  */
 433   Lisp_Object next, prev;
 434
 435   /* The window representing this scroll bar.  Since this is a full
 436      32-bit quantity, we store it split into two 32-bit values.  */
 437   Lisp_Object w32_window_low, w32_window_high;
 438
 439   /* Same as above for the widget.  */
 440   Lisp_Object w32_widget_low, w32_widget_high;
 441
 442   /* The position and size of the scroll bar in pixels, relative to the
 443      frame.  */
 444   int top, left, width, height;
 445
 446   /* The starting and ending positions of the handle, relative to the
 447      handle area (i.e. zero is the top position, not
 448      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 449      hasn't been drawn yet.
 450
 451      These are not actually the locations where the beginning and end
 452      are drawn; in order to keep handles from becoming invisible when
 453      editing large files, we establish a minimum height by always
 454      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 455      where they would be normally; the bottom and top are in a
 456      different co-ordinate system.  */
 457   int start, end;
 458
 459   /* If the scroll bar handle is currently being dragged by the user,
 460      this is the number of pixels from the top of the handle to the
 461      place where the user grabbed it.  If the handle isn't currently
 462      being dragged, this is Qnil.  */
 463   int dragging;
 464
 465   /* true if the scroll bar is horizontal.  */
 466   bool horizontal;
 467 };
 468
 469 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 470 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 471
 472 #ifdef _WIN64
 473 /* Building a 64-bit C integer from two 32-bit lisp integers.  */
 474 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 32 | XINT (low))
 475
 476 /* Setting two lisp integers to the low and high words of a 64-bit C int.  */
 477 #define SCROLL_BAR_UNPACK(low, high, int64) \
 478   (XSETINT ((low),   ((DWORDLONG)(int64))        & 0xffffffff), \
 479    XSETINT ((high), ((DWORDLONG)(int64) >> 32) & 0xffffffff))
 480 #else  /* not _WIN64 */
 481 /* Building a 32-bit C unsigned integer from two 16-bit lisp integers.  */
 482 #define SCROLL_BAR_PACK(low, high) ((UINT_PTR)(XINT (high) << 16 | XINT (low)))
 483
 484 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 485 #define SCROLL_BAR_UNPACK(low, high, int32) \
 486   (XSETINT ((low),   (int32)        & 0xffff), \
 487    XSETINT ((high), ((int32) >> 16) & 0xffff))
 488 #endif  /* not _WIN64 */
 489
 490 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 491 #define SCROLL_BAR_W32_WINDOW(ptr) \
 492   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 493
 494 /* Store a window id in a struct scroll_bar.  */
 495 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 496   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (intptr_t) id))
 497
 498 /* Return the inside width of a vertical scroll bar, given the outside
 499    width.  */
 500 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width)       \
 501   ((width)                                              \
 502    - VERTICAL_SCROLL_BAR_LEFT_BORDER                    \
 503    - VERTICAL_SCROLL_BAR_RIGHT_BORDER)
 504
 505 /* Return the length of the rectangle within which the top of the
 506    handle must stay.  This isn't equivalent to the inside height,
 507    because the scroll bar handle has a minimum height.
 508
 509    This is the real range of motion for the scroll bar, so when we're
 510    scaling buffer positions to scroll bar positions, we use this, not
 511    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 512 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height)                         \
 513   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 514
 515 /* Return the inside height of vertical scroll bar, given the outside
 516    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 517 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height)                     \
 518   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 519
 520 /* Return the inside height of a horizontal scroll bar, given the
 521    outside height.  */
 522 #define HORIZONTAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 523   ((height)                                           \
 524    - HORIZONTAL_SCROLL_BAR_TOP_BORDER                 \
 525    - HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER)
 526
 527 /* Return the length of the rectangle within which the left of the
 528    handle must stay.  This isn't equivalent to the inside width,
 529    because the scroll bar handle has a minimum width.
 530
 531    This is the real range of motion for the scroll bar, so when we're
 532    scaling buffer positions to scroll bar positions, we use this, not
 533    HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH.  */
 534 #define HORIZONTAL_SCROLL_BAR_LEFT_RANGE(f,width)                       \
 535   (HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH (f, width) - HORIZONTAL_SCROLL_BAR_MIN_HANDLE)
 536
 537 /* Return the inside width of horizontal scroll bar, given the outside
 538    width.  See HORIZONTAL_SCROLL_BAR_LEFT_RANGE too.  */
 539 #define HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH(f,width)                     \
 540   ((width) - HORIZONTAL_SCROLL_BAR_LEFT_BORDER - HORIZONTAL_SCROLL_BAR_RIGHT_BORDER)
 541
 542
 543 /* Border widths for scroll bars.
 544
 545    Scroll bar windows don't have any borders; their border width is
 546    set to zero, and we redraw borders ourselves.  This makes the code
 547    a bit cleaner, since we don't have to convert between outside width
 548    (used when relating to the rest of the screen) and inside width
 549    (used when sizing and drawing the scroll bar window itself).
 550
 551    The handle moves up and down/back and forth in a rectangle inset
 552    from the edges of the scroll bar.  These are widths by which we
 553    inset the handle boundaries from the scroll bar edges.  */
 554 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 555 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 556 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 557 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 558
 559 #define HORIZONTAL_SCROLL_BAR_LEFT_BORDER (horizontal_scroll_bar_left_border)
 560 #define HORIZONTAL_SCROLL_BAR_RIGHT_BORDER (horizontal_scroll_bar_right_border)
 561 #define HORIZONTAL_SCROLL_BAR_TOP_BORDER (0)
 562 #define HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER (0)
 563
 564 /* Minimum lengths for scroll bar handles, in pixels.  */
 565 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 566 #define HORIZONTAL_SCROLL_BAR_MIN_HANDLE (horizontal_scroll_bar_min_handle)
 567
 568 struct frame;  /* from frame.h */
 569
 570 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 571 extern void w32_clear_window (struct frame *);
 572
 573 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 574 do { \
 575     RECT rect; \
 576     rect.left = x; \
 577     rect.top = y; \
 578     rect.right = x + nx; \
 579     rect.bottom = y + ny; \
 580     w32_fill_rect (f,hdc,pix,&rect); \
 581 } while (0)
 582
 583 #define w32_fill_area_abs(f,hdc,pix,x0,y0,x1,y1) \
 584 do { \
 585     RECT rect; \
 586     rect.left = x0; \
 587     rect.top = y0; \
 588     rect.right = x1; \
 589     rect.bottom = y1; \
 590     w32_fill_rect (f,hdc,pix,&rect); \
 591 } while (0)
 592
 593 #define w32_clear_rect(f,hdc,lprect) \
 594   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 595
 596 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 597   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 598
 599 /* Define for earlier versions of Visual C */
 600 #ifndef WM_MOUSEWHEEL
 601 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 602 #endif /* WM_MOUSEWHEEL */
 603 #ifndef MSH_MOUSEWHEEL
 604 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 605 #endif /* MSH_MOUSEWHEEL */
 606 #ifndef WM_XBUTTONDOWN
 607 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 608 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 609 #endif /* WM_XBUTTONDOWN */
 610 #ifndef WM_MOUSEHWHEEL
 611 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 612 #endif /* WM_MOUSEHWHEEL  */
 613 #ifndef WM_APPCOMMAND
 614 #define WM_APPCOMMAND 0x319
 615 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 616 #endif
 617 #ifndef WM_UNICHAR
 618 #define WM_UNICHAR 0x109
 619 #endif
 620 #ifndef UNICODE_NOCHAR
 621 #define UNICODE_NOCHAR 0xFFFF
 622 #endif
 623
 624 #define WM_EMACS_START                 (WM_USER + 1)
 625 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 626 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 627 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 628 #define WM_EMACS_CREATEVSCROLLBAR      (WM_EMACS_START + 3)
 629 #define WM_EMACS_CREATEHSCROLLBAR      (WM_EMACS_START + 4)
 630 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 5)
 631 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 6)
 632 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 7)
 633 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 8)
 634 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 9)
 635 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 10)
 636 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 11)
 637 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 12)
 638 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 13)
 639 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 14)
 640 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 15)
 641 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 16)
 642 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 17)
 643 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 18)
 644 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 19)
 645 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 20)
 646 #define WM_EMACS_SHOWCURSOR            (WM_EMACS_START + 21)
 647 #define WM_EMACS_PAINT                 (WM_EMACS_START + 22)
 648 #define WM_EMACS_BRINGTOTOP            (WM_EMACS_START + 23)
 649 #define WM_EMACS_INPUT_READY           (WM_EMACS_START + 24)
 650 #define WM_EMACS_FILENOTIFY            (WM_EMACS_START + 25)
 651 #define WM_EMACS_END                   (WM_EMACS_START + 26)
 652
 653 #define WND_FONTWIDTH_INDEX    (0)
 654 #define WND_LINEHEIGHT_INDEX   (4)
 655 #define WND_BORDER_INDEX       (8)
 656 #define WND_VSCROLLBAR_INDEX   (12)
 657 #define WND_HSCROLLBAR_INDEX   (16)
 658 #define WND_BACKGROUND_INDEX   (20)
 659 #define WND_LAST_INDEX         (24)
 660
 661 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 662
 663 extern DWORD dwWindowsThreadId;
 664 extern HANDLE hWindowsThread;
 665 extern DWORD dwMainThreadId;
 666 extern HANDLE hMainThread;
 667
 668 typedef struct W32Msg {
 669     MSG msg;
 670     DWORD dwModifiers;
 671     RECT rect;
 672 } W32Msg;
 673
 674 extern BOOL prepend_msg (W32Msg *lpmsg);
 675
 676 /* Structure for recording message when input thread must return a
 677    result that depends on lisp thread to compute.  Lisp thread can
 678    complete deferred messages out of order.  */
 679 typedef struct deferred_msg
 680 {
 681   struct deferred_msg * next;
 682   W32Msg                w32msg;
 683   LRESULT               result;
 684   int                   completed;
 685 } deferred_msg;
 686
 687 extern CRITICAL_SECTION critsect;
 688
 689 extern void init_crit (void);
 690 extern void delete_crit (void);
 691
 692 extern void signal_quit (void);
 693
 694 #define enter_crit() EnterCriticalSection (&critsect)
 695 #define leave_crit() LeaveCriticalSection (&critsect)
 696
 697 extern void select_palette (struct frame * f, HDC hdc);
 698 extern void deselect_palette (struct frame * f, HDC hdc);
 699 extern HDC get_frame_dc (struct frame * f);
 700 extern int release_frame_dc (struct frame * f, HDC hDC);
 701
 702 extern int drain_message_queue (void);
 703
 704 extern BOOL get_next_msg (W32Msg *, BOOL);
 705 extern BOOL post_msg (W32Msg *);
 706 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 707
 708 extern BOOL parse_button (int, int, int *, int *);
 709
 710 extern void w32_sys_ring_bell (struct frame *f);
 711 extern void x_delete_display (struct w32_display_info *dpyinfo);
 712
 713 extern void x_query_color (struct frame *, XColor *);
 714
 715 #define FILE_NOTIFICATIONS_SIZE 16384
 716 /* Notifications come in sets.  We use a doubly linked list with a
 717    sentinel to communicate those sets from the watching threads to the
 718    main thread.  */
 719 struct notifications_set {
 720   LPBYTE notifications;
 721   DWORD size;
 722   void *desc;
 723   struct notifications_set *next;
 724   struct notifications_set *prev;
 725 };
 726 extern struct notifications_set *notifications_set_head;
 727 extern Lisp_Object w32_get_watch_object (void *);
 728 extern Lisp_Object lispy_file_action (DWORD);
 729 extern int handle_file_notifications (struct input_event *);
 730
 731 extern void w32_initialize_display_info (Lisp_Object);
 732 extern void initialize_w32_display (struct terminal *, int *, int *);
 733
 734 #ifdef WINDOWSNT
 735 /* Keyboard hooks.  */
 736 extern void setup_w32_kbdhook (void);
 737 extern void remove_w32_kbdhook (void);
 738 extern int check_w32_winkey_state (int);
 739 #define w32_kbdhook_active (os_subtype != OS_9X)
 740 #else
 741 #define w32_kbdhook_active 0
 742 #endif
 743
 744 /* Keypad command key support.  W32 doesn't have virtual keys defined
 745    for the function keys on the keypad (they are mapped to the standard
 746    function keys), so we define our own.  */
 747 #define VK_NUMPAD_BEGIN         0x92
 748 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 749 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 750 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 751 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 752 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 753 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 754 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 755 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 756 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 757 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 758 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 759 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 760
 761 #ifndef VK_LWIN
 762 /* Older compiler environments don't have these defined.  */
 763 #define VK_LWIN                 0x5B
 764 #define VK_RWIN                 0x5C
 765 #define VK_APPS                 0x5D
 766 #endif
 767
 768 /* Support for treating Windows and Apps keys as modifiers.  These
 769    constants must not overlap with any of the dwControlKeyState flags in
 770    KEY_EVENT_RECORD.  */
 771 #define LEFT_WIN_PRESSED       0x8000
 772 #define RIGHT_WIN_PRESSED      0x4000
 773 #define APPS_PRESSED           0x2000
 774
 775 /* The current ANSI input codepage for GUI sessions.  */
 776 extern int w32_keyboard_codepage;
 777
 778 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 779    (even though they are supported on 98 and ME.  */
 780 #ifndef WM_MOUSELEAVE
 781 #define WM_MOUSELEAVE 0x02A3
 782 #define TME_LEAVE 0x00000002;
 783
 784 typedef struct tagTRACKMOUSEEVENT
 785 {
 786   DWORD cbSize;
 787   DWORD dwFlags;
 788   HWND hwndTrack;
 789   DWORD dwHoverTime;
 790 } TRACKMOUSEEVENT;
 791 #endif
 792
 793 struct image;
 794 struct face;
 795
 796 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 797
 798 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 799 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 800     IN HMENU,
 801     IN UINT,
 802     IN UINT_PTR,
 803     IN LPCWSTR);
 804
 805 extern HWND w32_system_caret_hwnd;
 806 extern int w32_system_caret_height;
 807 extern int w32_system_caret_x;
 808 extern int w32_system_caret_y;
 809 extern struct window *w32_system_caret_window;
 810 extern int w32_system_caret_hdr_height;
 811 extern int w32_system_caret_mode_height;
 812
 813 #ifdef _MSC_VER
 814 #ifndef EnumSystemLocales
 815 /* MSVC headers define these only for _WIN32_WINNT >= 0x0500.  */
 816 typedef BOOL (CALLBACK *LOCALE_ENUMPROCA)(LPSTR);
 817 typedef BOOL (CALLBACK *LOCALE_ENUMPROCW)(LPWSTR);
 818 BOOL WINAPI EnumSystemLocalesA(LOCALE_ENUMPROCA,DWORD);
 819 BOOL WINAPI EnumSystemLocalesW(LOCALE_ENUMPROCW,DWORD);
 820 #ifdef UNICODE
 821 #define EnumSystemLocales EnumSystemLocalesW
 822 #else
 823 #define EnumSystemLocales EnumSystemLocalesA
 824 #endif
 825 #endif
 826 #endif
 827
 828 #if EMACSDEBUG
 829 extern const char*
 830 w32_name_of_message (UINT msg);
 831 #endif /* EMACSDEBUG */
 832
 833 #ifdef NTGUI_UNICODE
 834 extern Lisp_Object ntgui_encode_system (Lisp_Object str);
 835 #define GUISTR(x) (L ## x)
 836 #define GUI_ENCODE_FILE GUI_ENCODE_SYSTEM
 837 #define GUI_ENCODE_SYSTEM(x) ntgui_encode_system (x)
 838 #define GUI_FN(fn) fn ## W
 839 typedef wchar_t guichar_t;
 840 #else /* !NTGUI_UNICODE */
 841 #define GUISTR(x) x
 842 #define GUI_ENCODE_FILE ENCODE_FILE
 843 #define GUI_ENCODE_SYSTEM ENCODE_SYSTEM
 844 #define GUI_FN(fn) fn
 845 typedef char guichar_t;
 846 #endif /* NTGUI_UNICODE */
 847
 848 #define GUI_SDATA(x) ((guichar_t*) SDATA (x))
 849
 850 extern Lisp_Object w32_popup_dialog (struct frame *, Lisp_Object, Lisp_Object);
 851 extern void w32_arrow_cursor (void);
 852
 853 extern void syms_of_w32term (void);
 854 extern void syms_of_w32menu (void);
 855 extern void syms_of_w32fns (void);
 856
 857 extern void globals_of_w32menu (void);
 858 extern void globals_of_w32fns (void);
 859 extern void globals_of_w32notify (void);
 860
 861 extern void w32_init_main_thread (void);
 862
 863 #ifdef CYGWIN
 864 extern int w32_message_fd;
 865 #endif /* CYGWIN */