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      The same cons cell also appears in x_display_name_list.  */
  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   /* Resource data base */
 119   XrmDatabase xrdb;
 120
 121   /* color palette information.  */
 122   int has_palette;
 123   struct w32_palette_entry * color_list;
 124   unsigned num_colors;
 125   HPALETTE palette;
 126
 127   /* deferred action flags checked when starting frame update.  */
 128   int regen_palette;
 129
 130   /* Keystroke that has been faked by Emacs and will be ignored when
 131      received; value is reset after key is received.  */
 132   int faked_key;
 133
 134   /* Minimum width over all characters in all fonts in font_table.  */
 135   int smallest_char_width;
 136
 137   /* Minimum font height over all fonts in font_table.  */
 138   int smallest_font_height;
 139
 140   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 141   XGCValues *scratch_cursor_gc;
 142
 143   /* Information about the range of text currently shown in
 144      mouse-face.  */
 145   Mouse_HLInfo mouse_highlight;
 146
 147   char *w32_id_name;
 148
 149   /* The number of fonts actually stored in w32_font_table.
 150      font_table[n] is used and valid if 0 <= n < n_fonts. 0 <=
 151      n_fonts <= font_table_size. and font_table[i].name != 0. */
 152   int n_fonts;
 153
 154   /* Pointer to bitmap records.  */
 155   struct w32_bitmap_record *bitmaps;
 156
 157   /* Allocated size of bitmaps field.  */
 158   ptrdiff_t bitmaps_size;
 159
 160   /* Last used bitmap index.  */
 161   ptrdiff_t bitmaps_last;
 162
 163   /* The frame (if any) which has the window that has keyboard focus.
 164      Zero if none.  This is examined by Ffocus_frame in w32fns.c.  Note
 165      that a mere EnterNotify event can set this; if you need to know the
 166      last frame specified in a FocusIn or FocusOut event, use
 167      w32_focus_event_frame.  */
 168   struct frame *w32_focus_frame;
 169
 170   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 171      separate from w32_focus_frame, because whether or not LeaveNotify
 172      events cause us to lose focus depends on whether or not we have
 173      received a FocusIn event for it.  */
 174   struct frame *w32_focus_event_frame;
 175
 176   /* The frame which currently has the visual highlight, and should get
 177      keyboard input (other sorts of input have the frame encoded in the
 178      event).  It points to the focus frame's selected window's
 179      frame.  It differs from w32_focus_frame when we're using a global
 180      minibuffer.  */
 181   struct frame *x_highlight_frame;
 182
 183   /* The frame waiting to be auto-raised in w32_read_socket.  */
 184   struct frame *w32_pending_autoraise_frame;
 185
 186   /* The frame where the mouse was last time we reported a mouse event.  */
 187   struct frame *last_mouse_frame;
 188
 189   /* The frame where the mouse was last time we reported a mouse motion.  */
 190   struct frame *last_mouse_motion_frame;
 191
 192   /* The frame where the mouse was last time we reported a mouse position.  */
 193   struct frame *last_mouse_glyph_frame;
 194
 195   /* Position where the mouse was last time we reported a motion.
 196      This is a position on last_mouse_motion_frame.  */
 197   int last_mouse_motion_x;
 198   int last_mouse_motion_y;
 199
 200   /* Where the mouse was last time we reported a mouse position.
 201      This is a rectangle on last_mouse_glyph_frame.  */
 202   RECT last_mouse_glyph;
 203
 204   /* The scroll bar in which the last motion event occurred.  */
 205   struct scroll_bar *last_mouse_scroll_bar;
 206
 207   /* Mouse position on the scroll bar above.
 208      FIXME: shouldn't it be a member of struct scroll_bar?  */
 209   int last_mouse_scroll_bar_pos;
 210
 211   /* Time of last mouse movement.  */
 212   Time last_mouse_movement_time;
 213 };
 214
 215 /* This is a chain of structures for all the displays currently in use.  */
 216 extern struct w32_display_info *x_display_list;
 217 extern struct w32_display_info one_w32_display_info;
 218
 219 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 220    one for each element of w32_display_list and in the same order.
 221    NAME is the name of the frame.
 222    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 223 extern Lisp_Object w32_display_name_list;
 224
 225 extern struct frame *x_window_to_frame (struct w32_display_info *, HWND);
 226
 227 struct w32_display_info *x_display_info_for_name (Lisp_Object);
 228
 229 Lisp_Object display_x_get_resource (struct w32_display_info *,
 230                                     Lisp_Object, Lisp_Object,
 231                                     Lisp_Object, Lisp_Object);
 232
 233 /* also defined in xterm.h XXX: factor out to common header */
 234
 235 extern struct w32_display_info *w32_term_init (Lisp_Object,
 236                                                char *, char *);
 237 extern int w32_defined_color (struct frame *f, const char *color,
 238                               XColor *color_def, int alloc);
 239 extern void x_set_window_size (struct frame *f, int change_grav,
 240                               int cols, int rows);
 241 extern int x_display_pixel_height (struct w32_display_info *);
 242 extern int x_display_pixel_width (struct w32_display_info *);
 243 extern Lisp_Object x_get_focus_frame (struct frame *);
 244 extern void x_set_mouse_position (struct frame *f, int h, int v);
 245 extern void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
 246 extern void x_make_frame_visible (struct frame *f);
 247 extern void x_make_frame_invisible (struct frame *f);
 248 extern void x_iconify_frame (struct frame *f);
 249 extern void x_set_frame_alpha (struct frame *f);
 250 extern void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 251 extern void x_set_tool_bar_lines (struct frame *f,
 252                                   Lisp_Object value,
 253                                   Lisp_Object oldval);
 254 extern void x_activate_menubar (struct frame *);
 255 extern int x_bitmap_icon (struct frame *, Lisp_Object);
 256 extern void initialize_frame_menubar (struct frame *);
 257 extern void x_free_frame_resources (struct frame *);
 258 extern void x_real_positions (struct frame *, int *, int *);
 259
 260 /* w32inevt.c */
 261 extern int w32_kbd_patch_key (KEY_EVENT_RECORD *event, int cpId);
 262 extern int w32_kbd_mods_to_emacs (DWORD mods, WORD key);
 263
 264
 265 extern Lisp_Object x_get_focus_frame (struct frame *);
 266
 267 /* w32console.c */
 268 extern void w32con_hide_cursor (void);
 269 extern void w32con_show_cursor (void);
 270
 271 \f
 272 #define PIX_TYPE COLORREF
 273
 274 /* Each W32 frame object points to its own struct w32_display object
 275    in the output_data.w32 field.  The w32_display structure contains all
 276    the information that is specific to W32 windows.  */
 277
 278 /* Put some things in x_output for compatibility.
 279    NTEMACS_TODO: Move all common things here to eliminate unnecessary
 280    diffs between X and w32 code.  */
 281 struct x_output
 282 {
 283   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 284      frame, or IMPLICIT if we received an EnterNotify.
 285      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 286   int focus_state;
 287 };
 288
 289 enum
 290 {
 291   /* Values for focus_state, used as bit mask.
 292      EXPLICIT means we received a FocusIn for the frame and know it has
 293      the focus.  IMPLICIT means we received an EnterNotify and the frame
 294      may have the focus if no window manager is running.
 295      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 296   FOCUS_NONE     = 0,
 297   FOCUS_IMPLICIT = 1,
 298   FOCUS_EXPLICIT = 2
 299 };
 300
 301 struct w32_output
 302 {
 303   /* Placeholder for things accessed through output_data.x.  */
 304   struct x_output x_compatible;
 305
 306   /* Menubar "widget" handle.  */
 307   HMENU menubar_widget;
 308
 309   /* Original palette (used to deselect real palette after drawing) */
 310   HPALETTE old_palette;
 311
 312   /* Here are the Graphics Contexts for the default font.  */
 313   XGCValues *cursor_gc;                         /* cursor drawing */
 314
 315   /* The window used for this frame.
 316      May be zero while the frame object is being created
 317      and the window has not yet been created.  */
 318   Window window_desc;
 319
 320   /* The window that is the parent of this window.
 321      Usually this is a window that was made by the window manager,
 322      but it can be the root window, and it can be explicitly specified
 323      (see the explicit_parent field, below).  */
 324   Window parent_desc;
 325
 326   /* Default ASCII font of this frame. */
 327   struct font *font;
 328
 329   /* The baseline offset of the default ASCII font.  */
 330   int baseline_offset;
 331
 332   /* If a fontset is specified for this frame instead of font, this
 333      value contains an ID of the fontset, else -1.  */
 334   int fontset;
 335
 336   /* Pixel values used for various purposes.
 337      border_pixel may be -1 meaning use a gray tile.  */
 338   COLORREF cursor_pixel;
 339   COLORREF border_pixel;
 340   COLORREF mouse_pixel;
 341   COLORREF cursor_foreground_pixel;
 342
 343   /* Foreground color for scroll bars.  A value of -1 means use the
 344      default (black for non-toolkit scroll bars).  */
 345   COLORREF scroll_bar_foreground_pixel;
 346
 347   /* Background color for scroll bars.  A value of -1 means use the
 348      default (background color of the frame for non-toolkit scroll
 349      bars).  */
 350   COLORREF scroll_bar_background_pixel;
 351
 352   /* Descriptor for the cursor in use for this window.  */
 353   Cursor text_cursor;
 354   Cursor nontext_cursor;
 355   Cursor modeline_cursor;
 356   Cursor hand_cursor;
 357   Cursor hourglass_cursor;
 358   Cursor horizontal_drag_cursor;
 359
 360   /* Non-zero means hourglass cursor is currently displayed.  */
 361   unsigned hourglass_p : 1;
 362
 363   /* Non-hourglass cursor that is currently active.  */
 364   Cursor current_cursor;
 365
 366   DWORD dwStyle;
 367
 368   /* This is the Emacs structure for the display this frame is on.  */
 369   /* struct w32_display_info *display_info; */
 370
 371   /* Nonzero means our parent is another application's window
 372      and was explicitly specified.  */
 373   unsigned explicit_parent : 1;
 374
 375   /* Nonzero means tried already to make this frame visible.  */
 376   unsigned asked_for_visible : 1;
 377
 378   /* Nonzero means menubar is currently active.  */
 379   unsigned menubar_active : 1;
 380
 381   /* Relief GCs, colors etc.  */
 382   struct relief
 383   {
 384     XGCValues *gc;
 385     unsigned long pixel;
 386     int allocated_p;
 387   }
 388   black_relief, white_relief;
 389
 390   /* The background for which the above relief GCs were set up.
 391      They are changed only when a different background is involved.  */
 392   unsigned long relief_background;
 393
 394   /* Frame geometry and full-screen mode before it was resized by
 395      specifying the 'fullscreen' frame parameter.  Used to restore the
 396      geometry when 'fullscreen' is reset to nil.  */
 397   WINDOWPLACEMENT normal_placement;
 398   int prev_fsmode;
 399 };
 400
 401 extern struct w32_output w32term_display;
 402
 403 /* Return the X output data for frame F.  */
 404 #define FRAME_X_OUTPUT(f) ((f)->output_data.w32)
 405
 406 /* Return the window associated with the frame F.  */
 407 #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc)
 408 #define FRAME_X_WINDOW(f) FRAME_W32_WINDOW (f)
 409
 410 #define FRAME_FONT(f) ((f)->output_data.w32->font)
 411 #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset)
 412 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset)
 413
 414 /* This gives the w32_display_info structure for the display F is on.  */
 415 #define FRAME_DISPLAY_INFO(f) (&one_w32_display_info)
 416
 417 /* This is the `Display *' which frame F is on.  */
 418 #define FRAME_X_DISPLAY(f) (0)
 419
 420 #define FRAME_NORMAL_PLACEMENT(F) ((F)->output_data.w32->normal_placement)
 421 #define FRAME_PREV_FSMODE(F)      ((F)->output_data.w32->prev_fsmode)
 422
 423 \f
 424 /* W32-specific scroll bar stuff.  */
 425
 426 /* We represent scroll bars as lisp vectors.  This allows us to place
 427    references to them in windows without worrying about whether we'll
 428    end up with windows referring to dead scroll bars; the garbage
 429    collector will free it when its time comes.
 430
 431    We use struct scroll_bar as a template for accessing fields of the
 432    vector.  */
 433
 434 struct scroll_bar {
 435
 436   /* This field is shared by all vectors.  */
 437   struct vectorlike_header header;
 438
 439   /* The window we're a scroll bar for.  */
 440   Lisp_Object window;
 441
 442   /* The next and previous in the chain of scroll bars in this frame.  */
 443   Lisp_Object next, prev;
 444
 445   /* The window representing this scroll bar.  Since this is a full
 446      32-bit quantity, we store it split into two 32-bit values.  */
 447   Lisp_Object w32_window_low, w32_window_high;
 448
 449   /* Same as above for the widget.  */
 450   Lisp_Object w32_widget_low, w32_widget_high;
 451
 452   /* The position and size of the scroll bar in pixels, relative to the
 453      frame.  */
 454   Lisp_Object top, left, width, height;
 455
 456   /* The starting and ending positions of the handle, relative to the
 457      handle area (i.e. zero is the top position, not
 458      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 459      hasn't been drawn yet.
 460
 461      These are not actually the locations where the beginning and end
 462      are drawn; in order to keep handles from becoming invisible when
 463      editing large files, we establish a minimum height by always
 464      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 465      where they would be normally; the bottom and top are in a
 466      different co-ordinate system.  */
 467   Lisp_Object start, end;
 468
 469   /* If the scroll bar handle is currently being dragged by the user,
 470      this is the number of pixels from the top of the handle to the
 471      place where the user grabbed it.  If the handle isn't currently
 472      being dragged, this is Qnil.  */
 473   Lisp_Object dragging;
 474
 475   /* 1 if the background of the fringe that is adjacent to a scroll
 476      bar is extended to the gap between the fringe and the bar.  */
 477   /* Note: this could be a bit field, but we need to take its address
 478      in ALLOCATE_PSEUDOVECTOR (see x_scroll_bar_create).  */
 479   bool fringe_extended_p;
 480 };
 481
 482 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 483 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 484
 485 #ifdef _WIN64
 486 /* Building a 64-bit C integer from two 32-bit lisp integers.  */
 487 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 32 | XINT (low))
 488
 489 /* Setting two lisp integers to the low and high words of a 64-bit C int.  */
 490 #define SCROLL_BAR_UNPACK(low, high, int64) \
 491   (XSETINT ((low),   ((DWORDLONG)(int64))        & 0xffffffff), \
 492    XSETINT ((high), ((DWORDLONG)(int64) >> 32) & 0xffffffff))
 493 #else  /* not _WIN64 */
 494 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 495 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 496
 497 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 498 #define SCROLL_BAR_UNPACK(low, high, int32) \
 499   (XSETINT ((low),   (int32)        & 0xffff), \
 500    XSETINT ((high), ((int32) >> 16) & 0xffff))
 501 #endif  /* not _WIN64 */
 502
 503 /* Extract the window id of the scroll bar from a struct scroll_bar.  */
 504 #define SCROLL_BAR_W32_WINDOW(ptr) \
 505   ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high))
 506
 507 /* Store a window id in a struct scroll_bar.  */
 508 #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \
 509   (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (intptr_t) id))
 510
 511 /* Return the inside width of a vertical scroll bar, given the outside
 512    width.  */
 513 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \
 514   ((width) \
 515    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 516    - VERTICAL_SCROLL_BAR_RIGHT_BORDER)
 517
 518 /* Return the length of the rectangle within which the top of the
 519    handle must stay.  This isn't equivalent to the inside height,
 520    because the scroll bar handle has a minimum height.
 521
 522    This is the real range of motion for the scroll bar, so when we're
 523    scaling buffer positions to scroll bar positions, we use this, not
 524    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 525 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \
 526   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 527
 528 /* Return the inside height of vertical scroll bar, given the outside
 529    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 530 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \
 531   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 532
 533
 534 /* Border widths for scroll bars.
 535
 536    Scroll bar windows don't have any borders; their border width is
 537    set to zero, and we redraw borders ourselves.  This makes the code
 538    a bit cleaner, since we don't have to convert between outside width
 539    (used when relating to the rest of the screen) and inside width
 540    (used when sizing and drawing the scroll bar window itself).
 541
 542    The handle moves up and down/back and forth in a rectangle inset
 543    from the edges of the scroll bar.  These are widths by which we
 544    inset the handle boundaries from the scroll bar edges.  */
 545 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0)
 546 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0)
 547 #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border)
 548 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border)
 549
 550 /* Minimum lengths for scroll bar handles, in pixels.  */
 551 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle)
 552
 553 struct frame;  /* from frame.h */
 554
 555 extern void w32_fill_rect (struct frame *, HDC, COLORREF, RECT *);
 556 extern void w32_clear_window (struct frame *);
 557
 558 #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \
 559 do { \
 560     RECT rect; \
 561     rect.left = x; \
 562     rect.top = y; \
 563     rect.right = x + nx; \
 564     rect.bottom = y + ny; \
 565     w32_fill_rect (f,hdc,pix,&rect); \
 566 } while (0)
 567
 568 #define w32_clear_rect(f,hdc,lprect) \
 569   w32_fill_rect (f, hdc, FRAME_BACKGROUND_PIXEL (f), lprect)
 570
 571 #define w32_clear_area(f,hdc,px,py,nx,ny) \
 572   w32_fill_area (f, hdc, FRAME_BACKGROUND_PIXEL (f), px, py, nx, ny)
 573
 574 /* Define for earlier versions of Visual C */
 575 #ifndef WM_MOUSEWHEEL
 576 #define WM_MOUSEWHEEL                  (WM_MOUSELAST + 1)
 577 #endif /* WM_MOUSEWHEEL */
 578 #ifndef MSH_MOUSEWHEEL
 579 #define MSH_MOUSEWHEEL                 "MSWHEEL_ROLLMSG"
 580 #endif /* MSH_MOUSEWHEEL */
 581 #ifndef WM_XBUTTONDOWN
 582 #define WM_XBUTTONDOWN                 (WM_MOUSEWHEEL + 1)
 583 #define WM_XBUTTONUP                   (WM_MOUSEWHEEL + 2)
 584 #endif /* WM_XBUTTONDOWN */
 585 #ifndef WM_MOUSEHWHEEL
 586 #define WM_MOUSEHWHEEL                 (WM_MOUSEWHEEL + 4)
 587 #endif /* WM_MOUSEHWHEEL  */
 588 #ifndef WM_APPCOMMAND
 589 #define WM_APPCOMMAND 0x319
 590 #define GET_APPCOMMAND_LPARAM(lParam)  (HIWORD(lParam) & 0x7fff)
 591 #endif
 592 #ifndef WM_UNICHAR
 593 #define WM_UNICHAR 0x109
 594 #endif
 595 #ifndef UNICODE_NOCHAR
 596 #define UNICODE_NOCHAR 0xFFFF
 597 #endif
 598
 599 #define WM_EMACS_START                 (WM_USER + 1)
 600 #define WM_EMACS_KILL                  (WM_EMACS_START + 0)
 601 #define WM_EMACS_CREATEWINDOW          (WM_EMACS_START + 1)
 602 #define WM_EMACS_DONE                  (WM_EMACS_START + 2)
 603 #define WM_EMACS_CREATESCROLLBAR       (WM_EMACS_START + 3)
 604 #define WM_EMACS_SHOWWINDOW            (WM_EMACS_START + 4)
 605 #define WM_EMACS_SETWINDOWPOS          (WM_EMACS_START + 5)
 606 #define WM_EMACS_DESTROYWINDOW         (WM_EMACS_START + 6)
 607 #define WM_EMACS_TRACKPOPUPMENU        (WM_EMACS_START + 7)
 608 #define WM_EMACS_SETFOCUS              (WM_EMACS_START + 8)
 609 #define WM_EMACS_SETFOREGROUND         (WM_EMACS_START + 9)
 610 #define WM_EMACS_SETLOCALE             (WM_EMACS_START + 10)
 611 #define WM_EMACS_SETKEYBOARDLAYOUT     (WM_EMACS_START + 11)
 612 #define WM_EMACS_REGISTER_HOT_KEY      (WM_EMACS_START + 12)
 613 #define WM_EMACS_UNREGISTER_HOT_KEY    (WM_EMACS_START + 13)
 614 #define WM_EMACS_TOGGLE_LOCK_KEY       (WM_EMACS_START + 14)
 615 #define WM_EMACS_TRACK_CARET           (WM_EMACS_START + 15)
 616 #define WM_EMACS_DESTROY_CARET         (WM_EMACS_START + 16)
 617 #define WM_EMACS_SHOW_CARET            (WM_EMACS_START + 17)
 618 #define WM_EMACS_HIDE_CARET            (WM_EMACS_START + 18)
 619 #define WM_EMACS_SETCURSOR             (WM_EMACS_START + 19)
 620 #define WM_EMACS_PAINT                 (WM_EMACS_START + 20)
 621 #define WM_EMACS_BRINGTOTOP            (WM_EMACS_START + 21)
 622 #define WM_EMACS_INPUT_READY           (WM_EMACS_START + 22)
 623 #define WM_EMACS_FILENOTIFY            (WM_EMACS_START + 23)
 624 #define WM_EMACS_END                   (WM_EMACS_START + 24)
 625
 626 #define WND_FONTWIDTH_INDEX    (0)
 627 #define WND_LINEHEIGHT_INDEX   (4)
 628 #define WND_BORDER_INDEX       (8)
 629 #define WND_SCROLLBAR_INDEX    (12)
 630 #define WND_BACKGROUND_INDEX   (16)
 631 #define WND_LAST_INDEX         (20)
 632
 633 #define WND_EXTRA_BYTES     (WND_LAST_INDEX)
 634
 635 extern DWORD dwWindowsThreadId;
 636 extern HANDLE hWindowsThread;
 637 extern DWORD dwMainThreadId;
 638 extern HANDLE hMainThread;
 639
 640 typedef struct W32Msg {
 641     MSG msg;
 642     DWORD dwModifiers;
 643     RECT rect;
 644 } W32Msg;
 645
 646 extern BOOL prepend_msg (W32Msg *lpmsg);
 647
 648 /* Structure for recording message when input thread must return a
 649    result that depends on lisp thread to compute.  Lisp thread can
 650    complete deferred messages out of order.  */
 651 typedef struct deferred_msg
 652 {
 653   struct deferred_msg * next;
 654   W32Msg                w32msg;
 655   LRESULT               result;
 656   int                   completed;
 657 } deferred_msg;
 658
 659 extern CRITICAL_SECTION critsect;
 660
 661 extern void init_crit (void);
 662 extern void delete_crit (void);
 663
 664 extern void signal_quit (void);
 665
 666 #define enter_crit() EnterCriticalSection (&critsect)
 667 #define leave_crit() LeaveCriticalSection (&critsect)
 668
 669 extern void select_palette (struct frame * f, HDC hdc);
 670 extern void deselect_palette (struct frame * f, HDC hdc);
 671 extern HDC get_frame_dc (struct frame * f);
 672 extern int release_frame_dc (struct frame * f, HDC hDC);
 673
 674 extern int drain_message_queue (void);
 675
 676 extern BOOL get_next_msg (W32Msg *, BOOL);
 677 extern BOOL post_msg (W32Msg *);
 678 extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result);
 679
 680 extern BOOL parse_button (int, int, int *, int *);
 681
 682 extern void w32_sys_ring_bell (struct frame *f);
 683 extern void x_delete_display (struct w32_display_info *dpyinfo);
 684
 685 extern volatile int notification_buffer_in_use;
 686 extern BYTE file_notifications[16384];
 687 extern DWORD notifications_size;
 688 extern void *notifications_desc;
 689 extern Lisp_Object w32_get_watch_object (void *);
 690 extern Lisp_Object lispy_file_action (DWORD);
 691
 692 extern void w32_initialize_display_info (Lisp_Object);
 693 extern void initialize_w32_display (struct terminal *, int *, int *);
 694
 695 /* Keypad command key support.  W32 doesn't have virtual keys defined
 696    for the function keys on the keypad (they are mapped to the standard
 697    function keys), so we define our own.  */
 698 #define VK_NUMPAD_BEGIN         0x92
 699 #define VK_NUMPAD_CLEAR         (VK_NUMPAD_BEGIN + 0)
 700 #define VK_NUMPAD_ENTER         (VK_NUMPAD_BEGIN + 1)
 701 #define VK_NUMPAD_PRIOR         (VK_NUMPAD_BEGIN + 2)
 702 #define VK_NUMPAD_NEXT          (VK_NUMPAD_BEGIN + 3)
 703 #define VK_NUMPAD_END           (VK_NUMPAD_BEGIN + 4)
 704 #define VK_NUMPAD_HOME          (VK_NUMPAD_BEGIN + 5)
 705 #define VK_NUMPAD_LEFT          (VK_NUMPAD_BEGIN + 6)
 706 #define VK_NUMPAD_UP            (VK_NUMPAD_BEGIN + 7)
 707 #define VK_NUMPAD_RIGHT         (VK_NUMPAD_BEGIN + 8)
 708 #define VK_NUMPAD_DOWN          (VK_NUMPAD_BEGIN + 9)
 709 #define VK_NUMPAD_INSERT        (VK_NUMPAD_BEGIN + 10)
 710 #define VK_NUMPAD_DELETE        (VK_NUMPAD_BEGIN + 11)
 711
 712 #ifndef VK_LWIN
 713 /* Older compiler environments don't have these defined.  */
 714 #define VK_LWIN                 0x5B
 715 #define VK_RWIN                 0x5C
 716 #define VK_APPS                 0x5D
 717 #endif
 718
 719 /* Support for treating Windows and Apps keys as modifiers.  These
 720    constants must not overlap with any of the dwControlKeyState flags in
 721    KEY_EVENT_RECORD.  */
 722 #define LEFT_WIN_PRESSED       0x8000
 723 #define RIGHT_WIN_PRESSED      0x4000
 724 #define APPS_PRESSED           0x2000
 725
 726 /* The current ANSI input codepage for GUI sessions.  */
 727 extern int w32_keyboard_codepage;
 728
 729 /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined
 730    (even though they are supported on 98 and ME.  */
 731 #ifndef WM_MOUSELEAVE
 732 #define WM_MOUSELEAVE 0x02A3
 733 #define TME_LEAVE 0x00000002;
 734
 735 typedef struct tagTRACKMOUSEEVENT
 736 {
 737   DWORD cbSize;
 738   DWORD dwFlags;
 739   HWND hwndTrack;
 740   DWORD dwHoverTime;
 741 } TRACKMOUSEEVENT;
 742 #endif
 743
 744 struct image;
 745 struct face;
 746
 747 XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *);
 748
 749 typedef DWORD (WINAPI * ClipboardSequence_Proc) (void);
 750 typedef BOOL (WINAPI * AppendMenuW_Proc) (
 751     IN HMENU,
 752     IN UINT,
 753     IN UINT_PTR,
 754     IN LPCWSTR);
 755
 756 extern HWND w32_system_caret_hwnd;
 757 extern int w32_system_caret_height;
 758 extern int w32_system_caret_x;
 759 extern int w32_system_caret_y;
 760 extern struct window *w32_system_caret_window;
 761 extern int w32_system_caret_hdr_height;
 762 extern int w32_system_caret_mode_height;
 763
 764 #ifdef _MSC_VER
 765 #ifndef EnumSystemLocales
 766 /* MSVC headers define these only for _WIN32_WINNT >= 0x0500.  */
 767 typedef BOOL (CALLBACK *LOCALE_ENUMPROCA)(LPSTR);
 768 typedef BOOL (CALLBACK *LOCALE_ENUMPROCW)(LPWSTR);
 769 BOOL WINAPI EnumSystemLocalesA(LOCALE_ENUMPROCA,DWORD);
 770 BOOL WINAPI EnumSystemLocalesW(LOCALE_ENUMPROCW,DWORD);
 771 #ifdef UNICODE
 772 #define EnumSystemLocales EnumSystemLocalesW
 773 #else
 774 #define EnumSystemLocales EnumSystemLocalesA
 775 #endif
 776 #endif
 777 #endif
 778
 779 #if EMACSDEBUG
 780 extern const char*
 781 w32_name_of_message (UINT msg);
 782 #endif /* EMACSDEBUG */
 783
 784 #ifdef NTGUI_UNICODE
 785 extern Lisp_Object ntgui_encode_system (Lisp_Object str);
 786 #define GUISTR(x) (L ## x)
 787 #define GUI_ENCODE_FILE GUI_ENCODE_SYSTEM
 788 #define GUI_ENCODE_SYSTEM(x) ntgui_encode_system (x)
 789 #define GUI_FN(fn) fn ## W
 790 typedef wchar_t guichar_t;
 791 #else /* !NTGUI_UNICODE */
 792 #define GUISTR(x) x
 793 #define GUI_ENCODE_FILE ENCODE_FILE
 794 #define GUI_ENCODE_SYSTEM ENCODE_SYSTEM
 795 #define GUI_FN(fn) fn
 796 typedef char guichar_t;
 797 #endif /* NTGUI_UNICODE */
 798
 799 #define GUI_SDATA(x) ((guichar_t*) SDATA (x))
 800
 801 extern void syms_of_w32term (void);
 802 extern void syms_of_w32menu (void);
 803 extern void syms_of_w32fns (void);
 804
 805 extern void globals_of_w32menu (void);
 806 extern void globals_of_w32fns (void);
 807 extern void globals_of_w32notify (void);
 808
 809 #ifdef CYGWIN
 810 extern int w32_message_fd;
 811 #endif /* CYGWIN */