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

   1 /* Definitions and headers for communication on the Microsoft Windows API.
   2    Copyright (C) 1995, 2001-2014 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 CP_DEFAULT 1004
  30
  31 /* Indicates whether we are in the readsocket call and the message we
  32    are processing in the current loop */
  33
  34 extern MSG CurMsg;
  35 extern BOOL bUseDflt;
  36
  37 /* Structure recording bitmaps and reference count.
  38    If REFCOUNT is 0 then this record is free to be reused.  */
  39
  40 struct w32_bitmap_record
  41 {
  42   Pixmap pixmap;
  43   char *file;
  44   HINSTANCE hinst; /* Used to load the file */
  45   int refcount;
  46   /* Record some info about this pixmap.  */
  47   int height, width, depth;
  48 };
  49
  50 struct w32_palette_entry {
  51   struct w32_palette_entry * next;
  52   PALETTEENTRY entry;
  53 #if 0
  54   unsigned refcount;
  55 #endif
  56 };
  57
  58 extern void w32_regenerate_palette (struct frame *f);
  59 extern void w32_fullscreen_rect (HWND hwnd, int fsmode, RECT normal,
  60                                  RECT *rect);
  61
  62 \f
  63 /* For each display (currently only one on w32), we have a structure that
  64    records information about it.  */
  65
  66 struct w32_display_info
  67 {
  68   /* Chain of all w32_display_info structures.  */
  69   struct w32_display_info *next;
  70
  71   /* The generic display parameters corresponding to this w32 display.  */
  72   struct terminal *terminal;
  73
  74   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).  */
  75   Lisp_Object name_list_element;
  76
  77   /* Number of frames that are on this display.  */
  78   int reference_count;
  79
  80   /* Dots per inch of the screen.  */
  81   double resx, resy;
  82
  83   /* Number of planes on this screen.  */
  84   int n_planes;
  85
  86   /* Number of bits per pixel on this screen.  */
  87   int n_cbits;
  88
  89   /* Mask of things that cause the mouse to be grabbed.  */
  90   int grabbed;
  91
  92   /* Emacs bitmap-id of the default icon bitmap for this frame.
  93      Or -1 if none has been allocated yet.  */
  94   ptrdiff_t icon_bitmap_id;
  95
  96   /* The root window of this screen.  */
  97   Window root_window;
  98
  99   /* The cursor to use for vertical scroll bars.  */
 100   Cursor vertical_scroll_bar_cursor;
 101
 102   /* The cursor to use for horizontal scroll bars.  */
 103   Cursor horizontal_scroll_bar_cursor;
 104
 105   /* Resource data base */
 106   XrmDatabase xrdb;
 107
 108   /* color palette information.  */
 109   int has_palette;
 110   struct w32_palette_entry * color_list;
 111   unsigned num_colors;
 112   HPALETTE palette;
 113
 114   /* deferred action flags checked when starting frame update.  */
 115   int regen_palette;
 116
 117   /* Keystroke that has been faked by Emacs and will be ignored when
 118      received; value is reset after key is received.  */
 119   int faked_key;
 120
 121   /* Minimum width over all characters in all fonts in font_table.  */
 122   int smallest_char_width;
 123
 124   /* Minimum font height over all fonts in font_table.  */
 125   int smallest_font_height;
 126
 127   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 128   XGCValues *scratch_cursor_gc;
 129
 130   /* Information about the range of text currently shown in
 131      mouse-face.  */
 132   Mouse_HLInfo mouse_highlight;
 133
 134   char *w32_id_name;
 135
 136   /* The number of fonts actually stored in w32_font_table.
 137      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 138      n_fonts <= font_table_size. and font_table[i].name != 0. */
 139   int n_fonts;
 140
 141   /* Pointer to bitmap records.  */
 142   struct w32_bitmap_record *bitmaps;
 143
 144   /* Allocated size of bitmaps field.  */
 145   ptrdiff_t bitmaps_size;
 146
 147   /* Last used bitmap index.  */
 148   ptrdiff_t bitmaps_last;
 149
 150   /* The frame (if any) which has the window that has keyboard focus.
 151      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 152      that a mere EnterNotify event can set this; if you need to know the
 153      last frame specified in a FocusIn or FocusOut event, use
 154      w32_focus_event_frame.  */
 155   struct frame *w32_focus_frame;
 156
 157   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 158      separate from w32_focus_frame, because whether or not LeaveNotify
 159      events cause us to lose focus depends on whether or not we have
 160      received a FocusIn event for it.  */
 161   struct frame *w32_focus_event_frame;
 162
 163   /* The frame which currently has the visual highlight, and should get
 164      keyboard input (other sorts of input have the frame encoded in the
 165      event).  It points to the focus frame's selected window's
 166      frame.  It differs from w32_focus_frame when we're using a global
 167      minibuffer.  */
 168   struct frame *x_highlight_frame;
 169
 170   /* The frame waiting to be auto-raised in w32_read_socket.  */
 171   struct frame *w32_pending_autoraise_frame;
 172
 173   /* The frame where the mouse was last time we reported a mouse event.  */
 174   struct frame *last_mouse_frame;
 175
 176   /* The frame where the mouse was last time we reported a mouse motion.  */
 177   struct frame *last_mouse_motion_frame;
 178
 179   /* The frame where the mouse was last time we reported a mouse position.  */
 180   struct frame *last_mouse_glyph_frame;
 181
 182   /* Position where the mouse was last time we reported a motion.
 183      This is a position on last_mouse_motion_frame.  */
 184   int last_mouse_motion_x;
 185   int last_mouse_motion_y;
 186
 187   /* Where the mouse was last time we reported a mouse position.
 188      This is a rectangle on last_mouse_glyph_frame.  */
 189   RECT last_mouse_glyph;
 190
 191   /* The scroll bar in which the last motion event occurred.  */
 192   struct scroll_bar *last_mouse_scroll_bar;
 193
 194   /* Mouse position on the scroll bar above.
 195      FIXME: shouldn't it be a member of struct scroll_bar?  */
 196   int last_mouse_scroll_bar_pos;
 197
 198   /* Time of last mouse movement.  */
 199   Time last_mouse_movement_time;
 200
 201   /* Value returned by last call of ShowCursor.  */
 202   int cursor_display_counter;
 203 };
 204
 205 /* This is a chain of structures for all the displays currently in use.  */
 206 extern struct w32_display_info *x_display_list;
 207 extern struct w32_display_info one_w32_display_info;
 208
 209 /* These 2 are set by w32fns.c and examined in w32term.c.  */
 210 extern HMENU current_popup_menu;
 211 extern int menubar_in_use;
 212
 213 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 214
 215 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 216
 217 Lisp_Object display_x_get_resource (struct w32_display_info *,
 218                                     Lisp_Object, Lisp_Object,
 219                                     Lisp_Object, Lisp_Object);
 220
 221 /* also defined in xterm.h XXX: factor out to common header */
 222
 223 extern struct w32_display_info *w32_term_init (Lisp_Object,
 224                                                char *, char *);
 225 extern int w32_defined_color (struct frame *f, const char *color,
 226                               XColor *color_def, int alloc);
 227 extern void x_set_window_size (struct frame *f, int change_grav,
 228                                int width, int height, bool pixelwise);
 229 extern int x_display_pixel_height (struct w32_display_info *);
 230 extern int x_display_pixel_width (struct w32_display_info *);
 231 extern Lisp_Object x_get_focus_frame (struct frame *);
 232 extern void x_make_frame_visible (struct frame *f);
 233 extern void x_make_frame_invisible (struct frame *f);
 234 extern void x_iconify_frame (struct frame *f);
 235 extern void x_set_frame_alpha (struct frame *f);
 236 extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 237 extern void x_set_tool_bar_lines (struct frame *f,
 238                                   Lisp_Object value,
 239                                   Lisp_Object oldval);
 240 extern void x_set_internal_border_width (struct frame *f,
 241                                          Lisp_Object value,
 242                                          Lisp_Object oldval);
 243 extern void x_activate_menubar (struct frame *);
 244 extern int x_bitmap_icon (struct frame *, Lisp_Object);
 245 extern void initialize_frame_menubar (struct frame *);
 246 extern void x_free_frame_resources (struct frame *);
 247 extern void x_real_positions (struct frame *, int *, int *);
 248
 249 /* w32inevt.c */
 250 extern int w32_kbd_patch_key (KEY_EVENT_RECORD *event, int cpId);
 251 extern int w32_kbd_mods_to_emacs (DWORD mods, WORD key);
 252
 253
 254 extern Lisp_Object x_get_focus_frame (struct frame *);
 255
 256 /* w32console.c */
 257 extern void w32con_hide_cursor (void);
 258 extern void w32con_show_cursor (void);
 259
 260 \f
 261 #define PIX_TYPE COLORREF
 262
 263 /* Each W32 frame object points to its own struct w32_display object
 264    in the output_data.w32 field.  The w32_display structure contains all
 265    the information that is specific to W32 windows.  */
 266
 267 /* Put some things in x_output for compatibility.
 268    NTEMACS_TODO: Move all common things here to eliminate unnecessary
 269    diffs between X and w32 code.  */
 270 struct x_output
 271 {
 272   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 273      frame, or IMPLICIT if we received an EnterNotify.
 274      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 275   int focus_state;
 276 };
 277
 278 enum
 279 {
 280   /* Values for focus_state, used as bit mask.
 281      EXPLICIT means we received a FocusIn for the frame and know it has
 282      the focus.  IMPLICIT means we received an EnterNotify and the frame
 283      may have the focus if no window manager is running.
 284      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 285   FOCUS_NONE     = 0,
 286   FOCUS_IMPLICIT = 1,
 287   FOCUS_EXPLICIT = 2
 288 };
 289
 290 struct w32_output
 291 {
 292   /* Placeholder for things accessed through output_data.x.  */
 293   struct x_output x_compatible;
 294
 295   /* Menubar "widget" handle.  */
 296   HMENU menubar_widget;
 297
 298   /* Original palette (used to deselect real palette after drawing) */
 299   HPALETTE old_palette;
 300
 301   /* Here are the Graphics Contexts for the default font.  */
 302   XGCValues *cursor_gc;                         /* cursor drawing */
 303
 304   /* The window used for this frame.
 305      May be zero while the frame object is being created
 306      and the window has not yet been created.  */
 307   Window window_desc;
 308
 309   /* The window that is the parent of this window.
 310      Usually this is a window that was made by the window manager,
 311      but it can be the root window, and it can be explicitly specified
 312      (see the explicit_parent field, below).  */
 313   Window parent_desc;
 314
 315   /* Default ASCII font of this frame. */
 316   struct font *font;
 317
 318   /* The baseline offset of the default ASCII font.  */
 319   int baseline_offset;
 320
 321   /* If a fontset is specified for this frame instead of font, this
 322      value contains an ID of the fontset, else -1.  */
 323   int fontset;
 324
 325   /* Pixel values used for various purposes.
 326      border_pixel may be -1 meaning use a gray tile.  */
 327   COLORREF cursor_pixel;
 328   COLORREF border_pixel;
 329   COLORREF mouse_pixel;
 330   COLORREF cursor_foreground_pixel;
 331
 332   /* Foreground color for scroll bars.  A value of -1 means use the
 333      default (black for non-toolkit scroll bars).  */
 334   COLORREF scroll_bar_foreground_pixel;
 335
 336   /* Background color for scroll bars.  A value of -1 means use the
 337      default (background color of the frame for non-toolkit scroll
 338      bars).  */
 339   COLORREF scroll_bar_background_pixel;
 340
 341   /* Descriptor for the cursor in use for this window.  */
 342   Cursor text_cursor;
 343   Cursor nontext_cursor;
 344   Cursor modeline_cursor;
 345   Cursor hand_cursor;
 346   Cursor hourglass_cursor;
 347   Cursor horizontal_drag_cursor;
 348   Cursor vertical_drag_cursor;
 349
 350   /* Non-zero means hourglass cursor is currently displayed.  */
 351   unsigned hourglass_p : 1;
 352
 353   /* Non-hourglass cursor that is currently active.  */
 354   Cursor current_cursor;
 355
 356   DWORD dwStyle;
 357
 358   /* This is the Emacs structure for the display this frame is on.  */
 359   /* struct w32_display_info *display_info; */
 360
 361   /* Nonzero means our parent is another application's window
 362      and was explicitly specified.  */
 363   unsigned explicit_parent : 1;
 364
 365   /* Nonzero means tried already to make this frame visible.  */
 366   unsigned asked_for_visible : 1;
 367
 368   /* Nonzero means menubar is currently active.  */
 369   unsigned menubar_active : 1;
 370
 371   /* Relief GCs, colors etc.  */
 372   struct relief
 373   {
 374     XGCValues *gc;
 375     unsigned long pixel;
 376   }
 377   black_relief, white_relief;
 378
 379   /* The background for which the above relief GCs were set up.
 380      They are changed only when a different background is involved.  */
 381   unsigned long relief_background;
 382
 383   /* Frame geometry and full-screen mode before it was resized by
 384      specifying the 'fullscreen' frame parameter.  Used to restore the
 385      geometry when 'fullscreen' is reset to nil.  */
 386   WINDOWPLACEMENT normal_placement;
 387   int prev_fsmode;
 388 };
 389
 390 extern struct w32_output w32term_display;
 391
 392 /* Return the X output data for frame F.  */
 393 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 394
 395 /* Return the window associated with the frame F.  */
 396 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 397 #define FRAME_X_WINDOW(f) FRAME_W32_WINDOW (f)
 398
 399 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 400 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 401 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 402
 403 /* This gives the w32_display_info structure for the display F is on.  */
 404 #define FRAME_DISPLAY_INFO(f) (&one_w32_display_info)
 405
 406 /* This is the `Display *' which frame F is on.  */
 407 #define FRAME_X_DISPLAY(f) (0)
 408
 409 #define FRAME_NORMAL_PLACEMENT(F) ((F)->output_data.w32->normal_placement)
 410 #define FRAME_PREV_FSMODE(F)      ((F)->output_data.w32->prev_fsmode)
 411
 412 \f
 413 /* W32-specific scroll bar stuff.  */
 414
 415 /* We represent scroll bars as lisp vectors.  This allows us to place
 416    references to them in windows without worrying about whether we'll
 417    end up with windows referring to dead scroll bars; the garbage
 418    collector will free it when its time comes.
 419
 420    We use struct scroll_bar as a template for accessing fields of the
 421    vector.  */
 422
 423 struct scroll_bar {
 424
 425   /* This field is shared by all vectors.  */
 426   struct vectorlike_header header;
 427
 428   /* The window we're a scroll bar for.  */
 429   Lisp_Object window;
 430
 431   /* The next and previous in the chain of scroll bars in this frame.  */
 432   Lisp_Object next, prev;
 433
 434   /* The window representing this scroll bar.  Since this is a full
 435      32-bit quantity, we store it split into two 32-bit values.  */
 436   Lisp_Object w32_window_low, w32_window_high;
 437
 438   /* Same as above for the widget.  */
 439   Lisp_Object w32_widget_low, w32_widget_high;
 440
 441   /* The position and size of the scroll bar in pixels, relative to the
 442      frame.  */
 443   int top, left, width, height;
 444
 445   /* The starting and ending positions of the handle, relative to the
 446      handle area (i.e. zero is the top position, not
 447      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 448      hasn't been drawn yet.
 449
 450      These are not actually the locations where the beginning and end
 451      are drawn; in order to keep handles from becoming invisible when
 452      editing large files, we establish a minimum height by always
 453      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 454      where they would be normally; the bottom and top are in a
 455      different co-ordinate system.  */
 456   int start, end;
 457
 458   /* If the scroll bar handle is currently being dragged by the user,
 459      this is the number of pixels from the top of the handle to the
 460      place where the user grabbed it.  If the handle isn't currently
 461      being dragged, this is Qnil.  */
 462   int dragging;
 463
 464   /* true if the scroll bar is horizontal.  */
 465   bool horizontal;
 466 };
 467
 468 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 469 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 470
 471 #ifdef _WIN64
 472 /* Building a 64-bit C integer from two 32-bit lisp integers.  */
 473 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 32 | XINT (low))
 474
 475 /* Setting two lisp integers to the low and high words of a 64-bit C int.  */
 476 #define SCROLL_BAR_UNPACK(low, high, int64) \
 477   (XSETINT ((low),   ((DWORDLONG)(int64))        & 0xffffffff), \
 478    XSETINT ((high), ((DWORDLONG)(int64) >> 32) & 0xffffffff))
 479 #else  /* not _WIN64 */
 480 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 481 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 482
 483 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 484 #define SCROLL_BAR_UNPACK(low, high, int32) \
 485   (XSETINT ((low),   (int32)        & 0xffff), \
 486    XSETINT ((high), ((int32) >> 16) & 0xffff))
 487 #endif  /* not _WIN64 */
 488
 489 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 490 #define SCROLL_BAR_W32_WINDOW(ptr) \
 491   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 492
 493 /* Store a window id in a struct scroll_bar.  */
 494 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 495   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (intptr_t) id))
 496
 497 /* Return the inside width of a vertical scroll bar, given the outside
 498    width.  */
 499 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width)       \
 500   ((width)                                              \
 501    - VERTICAL_SCROLL_BAR_LEFT_BORDER                    \
 502    - VERTICAL_SCROLL_BAR_RIGHT_BORDER)
 503
 504 /* Return the length of the rectangle within which the top of the
 505    handle must stay.  This isn't equivalent to the inside height,
 506    because the scroll bar handle has a minimum height.
 507
 508    This is the real range of motion for the scroll bar, so when we're
 509    scaling buffer positions to scroll bar positions, we use this, not
 510    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 511 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height)                         \
 512   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 513
 514 /* Return the inside height of vertical scroll bar, given the outside
 515    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 516 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height)                     \
 517   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 518
 519 /* Return the inside height of a horizontal scroll bar, given the
 520    outside height.  */
 521 #define HORIZONTAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 522   ((height)                                           \
 523    - HORIZONTAL_SCROLL_BAR_TOP_BORDER                 \
 524    - HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER)
 525
 526 /* Return the length of the rectangle within which the left of the
 527    handle must stay.  This isn't equivalent to the inside width,
 528    because the scroll bar handle has a minimum width.
 529
 530    This is the real range of motion for the scroll bar, so when we're
 531    scaling buffer positions to scroll bar positions, we use this, not
 532    HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH.  */
 533 #define HORIZONTAL_SCROLL_BAR_LEFT_RANGE(f,width)                       \
 534   (HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH (f, width) - HORIZONTAL_SCROLL_BAR_MIN_HANDLE)
 535
 536 /* Return the inside width of horizontal scroll bar, given the outside
 537    width.  See HORIZONTAL_SCROLL_BAR_LEFT_RANGE too.  */
 538 #define HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH(f,width)                     \
 539   ((width) - HORIZONTAL_SCROLL_BAR_LEFT_BORDER - HORIZONTAL_SCROLL_BAR_RIGHT_BORDER)
 540
 541
 542 /* Border widths for scroll bars.
 543
 544    Scroll bar windows don't have any borders; their border width is
 545    set to zero, and we redraw borders ourselves.  This makes the code
 546    a bit cleaner, since we don't have to convert between outside width
 547    (used when relating to the rest of the screen) and inside width
 548    (used when sizing and drawing the scroll bar window itself).
 549
 550    The handle moves up and down/back and forth in a rectangle inset
 551    from the edges of the scroll bar.  These are widths by which we
 552    inset the handle boundaries from the scroll bar edges.  */
 553 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 554 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 555 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 556 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 557
 558 #define HORIZONTAL_SCROLL_BAR_LEFT_BORDER (horizontal_scroll_bar_left_border)
 559 #define HORIZONTAL_SCROLL_BAR_RIGHT_BORDER (horizontal_scroll_bar_right_border)
 560 #define HORIZONTAL_SCROLL_BAR_TOP_BORDER (0)
 561 #define HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER (0)
 562
 563 /* Minimum lengths for scroll bar handles, in pixels.  */
 564 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 565 #define HORIZONTAL_SCROLL_BAR_MIN_HANDLE (horizontal_scroll_bar_min_handle)
 566
 567 struct frame;  /* from frame.h */
 568
 569 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 570 extern void w32_clear_window (struct frame *);
 571
 572 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 573 do { \
 574     RECT rect; \
 575     rect.left = x; \
 576     rect.top = y; \
 577     rect.right = x + nx; \
 578     rect.bottom = y + ny; \
 579     w32_fill_rect (f,hdc,pix,&rect); \
 580 } while (0)
 581
 582 #define w32_fill_area_abs(f,hdc,pix,x0,y0,x1,y1) \
 583 do { \
 584     RECT rect; \
 585     rect.left = x0; \
 586     rect.top = y0; \
 587     rect.right = x1; \
 588     rect.bottom = y1; \
 589     w32_fill_rect (f,hdc,pix,&rect); \
 590 } while (0)
 591
 592 #define w32_clear_rect(f,hdc,lprect) \
 593   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 594
 595 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 596   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 597
 598 /* Define for earlier versions of Visual C */
 599 #ifndef WM_MOUSEWHEEL
 600 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 601 #endif /* WM_MOUSEWHEEL */
 602 #ifndef MSH_MOUSEWHEEL
 603 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 604 #endif /* MSH_MOUSEWHEEL */
 605 #ifndef WM_XBUTTONDOWN
 606 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 607 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 608 #endif /* WM_XBUTTONDOWN */
 609 #ifndef WM_MOUSEHWHEEL
 610 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 611 #endif /* WM_MOUSEHWHEEL  */
 612 #ifndef WM_APPCOMMAND
 613 #define WM_APPCOMMAND 0x319
 614 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 615 #endif
 616 #ifndef WM_UNICHAR
 617 #define WM_UNICHAR 0x109
 618 #endif
 619 #ifndef UNICODE_NOCHAR
 620 #define UNICODE_NOCHAR 0xFFFF
 621 #endif
 622
 623 #define WM_EMACS_START                 (WM_USER + 1)
 624 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 625 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 626 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 627 #define WM_EMACS_CREATEVSCROLLBAR      (WM_EMACS_START + 3)
 628 #define WM_EMACS_CREATEHSCROLLBAR      (WM_EMACS_START + 4)
 629 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 5)
 630 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 6)
 631 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 7)
 632 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 8)
 633 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 9)
 634 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 10)
 635 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 11)
 636 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 12)
 637 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 13)
 638 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 14)
 639 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 15)
 640 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 16)
 641 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 17)
 642 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 18)
 643 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 19)
 644 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 20)
 645 #define WM_EMACS_SHOWCURSOR            (WM_EMACS_START + 21)
 646 #define WM_EMACS_PAINT                 (WM_EMACS_START + 22)
 647 #define WM_EMACS_BRINGTOTOP            (WM_EMACS_START + 23)
 648 #define WM_EMACS_INPUT_READY           (WM_EMACS_START + 24)
 649 #define WM_EMACS_FILENOTIFY            (WM_EMACS_START + 25)
 650 #define WM_EMACS_END                   (WM_EMACS_START + 26)
 651
 652 #define WND_FONTWIDTH_INDEX    (0)
 653 #define WND_LINEHEIGHT_INDEX   (4)
 654 #define WND_BORDER_INDEX       (8)
 655 #define WND_VSCROLLBAR_INDEX   (12)
 656 #define WND_HSCROLLBAR_INDEX   (16)
 657 #define WND_BACKGROUND_INDEX   (20)
 658 #define WND_LAST_INDEX         (24)
 659
 660 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 661
 662 extern DWORD dwWindowsThreadId;
 663 extern HANDLE hWindowsThread;
 664 extern DWORD dwMainThreadId;
 665 extern HANDLE hMainThread;
 666
 667 typedef struct W32Msg {
 668     MSG msg;
 669     DWORD dwModifiers;
 670     RECT rect;
 671 } W32Msg;
 672
 673 extern BOOL prepend_msg (W32Msg *lpmsg);
 674
 675 /* Structure for recording message when input thread must return a
 676    result that depends on lisp thread to compute.  Lisp thread can
 677    complete deferred messages out of order.  */
 678 typedef struct deferred_msg
 679 {
 680   struct deferred_msg * next;
 681   W32Msg                w32msg;
 682   LRESULT               result;
 683   int                   completed;
 684 } deferred_msg;
 685
 686 extern CRITICAL_SECTION critsect;
 687
 688 extern void init_crit (void);
 689 extern void delete_crit (void);
 690
 691 extern void signal_quit (void);
 692
 693 #define enter_crit() EnterCriticalSection (&critsect)
 694 #define leave_crit() LeaveCriticalSection (&critsect)
 695
 696 extern void select_palette (struct frame * f, HDC hdc);
 697 extern void deselect_palette (struct frame * f, HDC hdc);
 698 extern HDC get_frame_dc (struct frame * f);
 699 extern int release_frame_dc (struct frame * f, HDC hDC);
 700
 701 extern int drain_message_queue (void);
 702
 703 extern BOOL get_next_msg (W32Msg *, BOOL);
 704 extern BOOL post_msg (W32Msg *);
 705 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 706
 707 extern BOOL parse_button (int, int, int *, int *);
 708
 709 extern void w32_sys_ring_bell (struct frame *f);
 710 extern void x_delete_display (struct w32_display_info *dpyinfo);
 711
 712 extern volatile int notification_buffer_in_use;
 713 extern BYTE file_notifications[16384];
 714 extern DWORD notifications_size;
 715 extern void *notifications_desc;
 716 extern Lisp_Object w32_get_watch_object (void *);
 717 extern Lisp_Object lispy_file_action (DWORD);
 718 extern int handle_file_notifications (struct input_event *);
 719
 720 extern void w32_initialize_display_info (Lisp_Object);
 721 extern void initialize_w32_display (struct terminal *, int *, int *);
 722
 723 /* Keypad command key support.  W32 doesn't have virtual keys defined
 724    for the function keys on the keypad (they are mapped to the standard
 725    function keys), so we define our own.  */
 726 #define VK_NUMPAD_BEGIN         0x92
 727 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 728 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 729 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 730 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 731 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 732 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 733 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 734 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 735 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 736 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 737 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 738 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 739
 740 #ifndef VK_LWIN
 741 /* Older compiler environments don't have these defined.  */
 742 #define VK_LWIN                 0x5B
 743 #define VK_RWIN                 0x5C
 744 #define VK_APPS                 0x5D
 745 #endif
 746
 747 /* Support for treating Windows and Apps keys as modifiers.  These
 748    constants must not overlap with any of the dwControlKeyState flags in
 749    KEY_EVENT_RECORD.  */
 750 #define LEFT_WIN_PRESSED       0x8000
 751 #define RIGHT_WIN_PRESSED      0x4000
 752 #define APPS_PRESSED           0x2000
 753
 754 /* The current ANSI input codepage for GUI sessions.  */
 755 extern int w32_keyboard_codepage;
 756
 757 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 758    (even though they are supported on 98 and ME.  */
 759 #ifndef WM_MOUSELEAVE
 760 #define WM_MOUSELEAVE 0x02A3
 761 #define TME_LEAVE 0x00000002;
 762
 763 typedef struct tagTRACKMOUSEEVENT
 764 {
 765   DWORD cbSize;
 766   DWORD dwFlags;
 767   HWND hwndTrack;
 768   DWORD dwHoverTime;
 769 } TRACKMOUSEEVENT;
 770 #endif
 771
 772 struct image;
 773 struct face;
 774
 775 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 776
 777 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 778 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 779     IN HMENU,
 780     IN UINT,
 781     IN UINT_PTR,
 782     IN LPCWSTR);
 783
 784 extern HWND w32_system_caret_hwnd;
 785 extern int w32_system_caret_height;
 786 extern int w32_system_caret_x;
 787 extern int w32_system_caret_y;
 788 extern struct window *w32_system_caret_window;
 789 extern int w32_system_caret_hdr_height;
 790 extern int w32_system_caret_mode_height;
 791
 792 #ifdef _MSC_VER
 793 #ifndef EnumSystemLocales
 794 /* MSVC headers define these only for _WIN32_WINNT >= 0x0500.  */
 795 typedef BOOL (CALLBACK *LOCALE_ENUMPROCA)(LPSTR);
 796 typedef BOOL (CALLBACK *LOCALE_ENUMPROCW)(LPWSTR);
 797 BOOL WINAPI EnumSystemLocalesA(LOCALE_ENUMPROCA,DWORD);
 798 BOOL WINAPI EnumSystemLocalesW(LOCALE_ENUMPROCW,DWORD);
 799 #ifdef UNICODE
 800 #define EnumSystemLocales EnumSystemLocalesW
 801 #else
 802 #define EnumSystemLocales EnumSystemLocalesA
 803 #endif
 804 #endif
 805 #endif
 806
 807 #if EMACSDEBUG
 808 extern const char*
 809 w32_name_of_message (UINT msg);
 810 #endif /* EMACSDEBUG */
 811
 812 #ifdef NTGUI_UNICODE
 813 extern Lisp_Object ntgui_encode_system (Lisp_Object str);
 814 #define GUISTR(x) (L ## x)
 815 #define GUI_ENCODE_FILE GUI_ENCODE_SYSTEM
 816 #define GUI_ENCODE_SYSTEM(x) ntgui_encode_system (x)
 817 #define GUI_FN(fn) fn ## W
 818 typedef wchar_t guichar_t;
 819 #else /* !NTGUI_UNICODE */
 820 #define GUISTR(x) x
 821 #define GUI_ENCODE_FILE ENCODE_FILE
 822 #define GUI_ENCODE_SYSTEM ENCODE_SYSTEM
 823 #define GUI_FN(fn) fn
 824 typedef char guichar_t;
 825 #endif /* NTGUI_UNICODE */
 826
 827 #define GUI_SDATA(x) ((guichar_t*) SDATA (x))
 828
 829 extern Lisp_Object w32_popup_dialog (struct frame *, Lisp_Object, Lisp_Object);
 830 extern void w32_arrow_cursor (void);
 831
 832 extern void syms_of_w32term (void);
 833 extern void syms_of_w32menu (void);
 834 extern void syms_of_w32fns (void);
 835
 836 extern void globals_of_w32menu (void);
 837 extern void globals_of_w32fns (void);
 838 extern void globals_of_w32notify (void);
 839
 840 #ifdef CYGWIN
 841 extern int w32_message_fd;
 842 #endif /* CYGWIN */