Pileus Git - ~andy/gtk/blob - gdk/gdkinternals.h

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 /* Uninstalled header defining types and functions internal to GDK */
  28
  29 #ifndef __GDK_INTERNALS_H__
  30 #define __GDK_INTERNALS_H__
  31
  32 #include <gio/gio.h>
  33 #include <gdk/gdktypes.h>
  34 #include <gdk/gdkwindow.h>
  35 #include <gdk/gdkprivate.h>
  36 #ifdef USE_MEDIALIB
  37 #include <gdk/gdkmedialib.h>
  38 #endif
  39
  40 G_BEGIN_DECLS
  41
  42 /**********************
  43  * General Facilities *
  44  **********************/
  45
  46 /* Debugging support */
  47
  48 typedef struct _GdkColorInfo           GdkColorInfo;
  49 typedef struct _GdkEventFilter         GdkEventFilter;
  50 typedef struct _GdkClientFilter        GdkClientFilter;
  51
  52 typedef enum {
  53   GDK_COLOR_WRITEABLE = 1 << 0
  54 } GdkColorInfoFlags;
  55
  56 struct _GdkColorInfo
  57 {
  58   GdkColorInfoFlags flags;
  59   guint ref_count;
  60 };
  61
  62 struct _GdkEventFilter {
  63   GdkFilterFunc function;
  64   gpointer data;
  65 };
  66
  67 struct _GdkClientFilter {
  68   GdkAtom       type;
  69   GdkFilterFunc function;
  70   gpointer      data;
  71 };
  72
  73 typedef enum {
  74   GDK_DEBUG_MISC          = 1 << 0,
  75   GDK_DEBUG_EVENTS        = 1 << 1,
  76   GDK_DEBUG_DND           = 1 << 2,
  77   GDK_DEBUG_XIM           = 1 << 3,
  78   GDK_DEBUG_NOGRABS       = 1 << 4,
  79   GDK_DEBUG_COLORMAP      = 1 << 5,
  80   GDK_DEBUG_GC            = 1 << 6,
  81   GDK_DEBUG_PIXMAP        = 1 << 7,
  82   GDK_DEBUG_IMAGE         = 1 << 8,
  83   GDK_DEBUG_INPUT         = 1 << 9,
  84   GDK_DEBUG_CURSOR        = 1 <<10,
  85   GDK_DEBUG_MULTIHEAD     = 1 <<11,
  86   GDK_DEBUG_XINERAMA      = 1 <<12,
  87   GDK_DEBUG_DRAW          = 1 <<13,
  88   GDK_DEBUG_EVENTLOOP     = 1 <<14
  89 } GdkDebugFlag;
  90
  91 extern GList            *_gdk_default_filters;
  92 extern GdkWindow        *_gdk_parent_root;
  93 extern gint              _gdk_error_code;
  94 extern gint              _gdk_error_warnings;
  95
  96 extern guint _gdk_debug_flags;
  97 extern gboolean _gdk_native_windows;
  98
  99 #ifdef G_ENABLE_DEBUG
 100
 101 #define GDK_NOTE(type,action)                G_STMT_START { \
 102     if (_gdk_debug_flags & GDK_DEBUG_##type)                \
 103        { action; };                          } G_STMT_END
 104
 105 #else /* !G_ENABLE_DEBUG */
 106
 107 #define GDK_NOTE(type,action)
 108
 109 #endif /* G_ENABLE_DEBUG */
 110
 111 /* Arg parsing */
 112
 113 typedef enum
 114 {
 115   GDK_ARG_STRING,
 116   GDK_ARG_INT,
 117   GDK_ARG_BOOL,
 118   GDK_ARG_NOBOOL,
 119   GDK_ARG_CALLBACK
 120 } GdkArgType;
 121
 122 typedef struct _GdkArgContext GdkArgContext;
 123 typedef struct _GdkArgDesc GdkArgDesc;
 124
 125 typedef void (*GdkArgFunc) (const char *name, const char *arg, gpointer data);
 126
 127 struct _GdkArgContext
 128 {
 129   GPtrArray *tables;
 130   gpointer cb_data;
 131 };
 132
 133 struct _GdkArgDesc
 134 {
 135   const char *name;
 136   GdkArgType type;
 137   gpointer location;
 138   GdkArgFunc callback;
 139 };
 140
 141 /* Event handling */
 142
 143 typedef struct _GdkEventPrivate GdkEventPrivate;
 144
 145 typedef enum
 146 {
 147   /* Following flag is set for events on the event queue during
 148    * translation and cleared afterwards.
 149    */
 150   GDK_EVENT_PENDING = 1 << 0
 151 } GdkEventFlags;
 152
 153 struct _GdkEventPrivate
 154 {
 155   GdkEvent   event;
 156   guint      flags;
 157   GdkScreen *screen;
 158   gpointer   windowing_data;
 159   GdkDevice *device;
 160 };
 161
 162 /* Tracks information about the pointer grab on this display */
 163 typedef struct
 164 {
 165   GdkWindow *window;
 166   GdkWindow *native_window;
 167   gulong serial_start;
 168   gulong serial_end; /* exclusive, i.e. not active on serial_end */
 169   gboolean owner_events;
 170   guint event_mask;
 171   gboolean implicit;
 172   guint32 time;
 173   GdkGrabOwnership ownership;
 174
 175   guint activated : 1;
 176   guint implicit_ungrab : 1;
 177 } GdkDeviceGrabInfo;
 178
 179 typedef struct _GdkInputWindow GdkInputWindow;
 180
 181 typedef void (* GdkDisplayPointerInfoForeach) (GdkDisplay           *display,
 182                                                GdkDevice            *device,
 183                                                GdkPointerWindowInfo *device_info,
 184                                                gpointer              user_data);
 185
 186 /* Private version of GdkWindowObject. The initial part of this strucuture
 187    is public for historical reasons. Don't change that part */
 188 typedef struct _GdkWindowPaint             GdkWindowPaint;
 189
 190 #define GDK_WINDOW_OBJECT(object)    ((GdkWindowObject *) GDK_WINDOW (object))
 191
 192 struct _GdkWindowObject
 193 {
 194   GdkDrawable parent_instance;
 195
 196   GdkDrawable *impl; /* window-system-specific delegate object */
 197
 198   GdkWindowObject *parent;
 199
 200   gpointer user_data;
 201
 202   gint x;
 203   gint y;
 204
 205   gint extension_events;
 206
 207   GList *filters;
 208   GList *children;
 209
 210   GdkColor bg_color;
 211   GdkPixmap *bg_pixmap;
 212
 213   GSList *paint_stack;
 214
 215   cairo_region_t *update_area;
 216   guint update_freeze_count;
 217
 218   guint8 window_type;
 219   guint8 depth;
 220   guint8 resize_count;
 221
 222   GdkWindowState state;
 223
 224   guint guffaw_gravity : 1;
 225   guint input_only : 1;
 226   guint modal_hint : 1;
 227   guint composited : 1;
 228
 229   guint destroyed : 2;
 230
 231   guint accept_focus : 1;
 232   guint focus_on_map : 1;
 233   guint shaped : 1;
 234   guint support_multidevice : 1;
 235
 236   GdkEventMask event_mask;
 237
 238   guint update_and_descendants_freeze_count;
 239
 240   GdkWindowRedirect *redirect;
 241
 242   /* The GdkWindowObject that has the impl, ref:ed if another window.
 243    * This ref is required to keep the wrapper of the impl window alive
 244    * for as long as any GdkWindow references the impl. */
 245   GdkWindowObject *impl_window;
 246   int abs_x, abs_y; /* Absolute offset in impl */
 247   gint width, height;
 248   guint32 clip_tag;
 249   cairo_region_t *clip_region; /* Clip region (wrt toplevel) in window coords */
 250   cairo_region_t *clip_region_with_children; /* Clip region in window coords */
 251   GdkCursor *cursor;
 252   GHashTable *device_cursor;
 253   gint8 toplevel_window_type;
 254   guint synthesize_crossing_event_queued : 1;
 255   guint effective_visibility : 2;
 256   guint visibility : 2; /* The visibility wrt the toplevel (i.e. based on clip_region) */
 257   guint native_visibility : 2; /* the native visibility of a impl windows */
 258   guint viewable : 1; /* mapped and all parents mapped */
 259   guint applied_shape : 1;
 260
 261   guint num_offscreen_children;
 262   GdkWindowPaint *implicit_paint;
 263   GdkInputWindow *input_window; /* only set for impl windows */
 264
 265   GList *outstanding_moves;
 266
 267   cairo_region_t *shape;
 268   cairo_region_t *input_shape;
 269
 270   cairo_surface_t *cairo_surface;
 271   guint outstanding_surfaces; /* only set on impl window */
 272
 273   GList *devices_inside;
 274   GHashTable *device_events;
 275 };
 276
 277 #define GDK_WINDOW_TYPE(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->window_type)
 278 #define GDK_WINDOW_DESTROYED(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->destroyed)
 279
 280 extern GdkEventFunc   _gdk_event_func;    /* Callback for events */
 281 extern gpointer       _gdk_event_data;
 282 extern GDestroyNotify _gdk_event_notify;
 283
 284 extern GSList    *_gdk_displays;
 285 extern gchar     *_gdk_display_name;
 286 extern gint       _gdk_screen_number;
 287 extern gchar     *_gdk_display_arg_name;
 288 extern gboolean   _gdk_enable_multidevice;
 289
 290 void      _gdk_events_queue  (GdkDisplay *display);
 291 GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
 292
 293 GList* _gdk_event_queue_find_first   (GdkDisplay *display);
 294 void   _gdk_event_queue_remove_link  (GdkDisplay *display,
 295                                       GList      *node);
 296 GList* _gdk_event_queue_prepend      (GdkDisplay *display,
 297                                       GdkEvent   *event);
 298 GList* _gdk_event_queue_append       (GdkDisplay *display,
 299                                       GdkEvent   *event);
 300 GList* _gdk_event_queue_insert_after (GdkDisplay *display,
 301                                       GdkEvent   *after_event,
 302                                       GdkEvent   *event);
 303 GList* _gdk_event_queue_insert_before(GdkDisplay *display,
 304                                       GdkEvent   *after_event,
 305                                       GdkEvent   *event);
 306 void   _gdk_event_button_generate    (GdkDisplay *display,
 307                                       GdkEvent   *event);
 308
 309 void _gdk_windowing_event_data_copy (const GdkEvent *src,
 310                                      GdkEvent       *dst);
 311 void _gdk_windowing_event_data_free (GdkEvent       *event);
 312
 313 void gdk_synthesize_window_state (GdkWindow     *window,
 314                                   GdkWindowState unset_flags,
 315                                   GdkWindowState set_flags);
 316
 317 GdkDeviceManager * _gdk_device_manager_new (GdkDisplay *display);
 318
 319
 320 cairo_surface_t *_gdk_drawable_ref_cairo_surface (GdkDrawable *drawable);
 321
 322 GdkDrawable *_gdk_drawable_get_source_drawable (GdkDrawable *drawable);
 323 cairo_surface_t * _gdk_drawable_create_cairo_surface (GdkDrawable *drawable,
 324                                                       int width,
 325                                                       int height);
 326
 327 /* GC caching */
 328 GdkGC *_gdk_drawable_get_scratch_gc (GdkDrawable *drawable,
 329                                      gboolean     graphics_exposures);
 330 GdkGC *_gdk_drawable_get_subwindow_scratch_gc (GdkDrawable *drawable);
 331
 332 void _gdk_gc_update_context (GdkGC          *gc,
 333                              cairo_t        *cr,
 334                              const GdkColor *override_foreground,
 335                              GdkBitmap      *override_stipple,
 336                              gboolean        gc_changed,
 337                              GdkDrawable    *target_drawable);
 338
 339 /*************************************
 340  * Interfaces used by windowing code *
 341  *************************************/
 342
 343 GdkPixmap *_gdk_pixmap_new               (GdkDrawable    *drawable,
 344                                           gint            width,
 345                                           gint            height,
 346                                           gint            depth);
 347 GdkPixmap *_gdk_pixmap_create_from_data  (GdkDrawable    *drawable,
 348                                           const gchar    *data,
 349                                           gint            width,
 350                                           gint            height,
 351                                           gint            depth,
 352                                           const GdkColor *fg,
 353                                           const GdkColor *bg);
 354 GdkPixmap *_gdk_bitmap_create_from_data  (GdkDrawable    *drawable,
 355                                           const gchar    *data,
 356                                           gint            width,
 357                                           gint            height);
 358
 359 void       _gdk_window_impl_new          (GdkWindow      *window,
 360                                           GdkWindow      *real_parent,
 361                                           GdkScreen      *screen,
 362                                           GdkVisual      *visual,
 363                                           GdkEventMask    event_mask,
 364                                           GdkWindowAttr  *attributes,
 365                                           gint            attributes_mask);
 366 void       _gdk_window_destroy           (GdkWindow      *window,
 367                                           gboolean        foreign_destroy);
 368 void       _gdk_window_clear_update_area (GdkWindow      *window);
 369 void       _gdk_window_update_size       (GdkWindow      *window);
 370 gboolean   _gdk_window_update_viewable   (GdkWindow      *window);
 371
 372 void       _gdk_window_process_updates_recurse (GdkWindow *window,
 373                                                 cairo_region_t *expose_region);
 374
 375 void       _gdk_screen_close             (GdkScreen      *screen);
 376
 377 const char *_gdk_get_sm_client_id (void);
 378
 379 void _gdk_gc_init (GdkGC           *gc,
 380                    GdkDrawable     *drawable,
 381                    GdkGCValues     *values,
 382                    GdkGCValuesMask  values_mask);
 383
 384 cairo_region_t *_gdk_gc_get_clip_region (GdkGC *gc);
 385 GdkBitmap *_gdk_gc_get_clip_mask   (GdkGC *gc);
 386 gboolean   _gdk_gc_get_exposures   (GdkGC *gc);
 387 GdkFill    _gdk_gc_get_fill        (GdkGC *gc);
 388 GdkPixmap *_gdk_gc_get_tile        (GdkGC *gc);
 389 GdkBitmap *_gdk_gc_get_stipple     (GdkGC *gc);
 390 guint32    _gdk_gc_get_fg_pixel    (GdkGC *gc);
 391 guint32    _gdk_gc_get_bg_pixel    (GdkGC *gc);
 392 void      _gdk_gc_add_drawable_clip     (GdkGC     *gc,
 393                                          guint32    region_tag,
 394                                          cairo_region_t *region,
 395                                          int        offset_x,
 396                                          int        offset_y);
 397 void      _gdk_gc_remove_drawable_clip  (GdkGC     *gc);
 398 void       _gdk_gc_set_clip_region_internal (GdkGC     *gc,
 399                                              cairo_region_t *region,
 400                                              gboolean reset_origin);
 401 GdkSubwindowMode _gdk_gc_get_subwindow (GdkGC *gc);
 402
 403 GdkDrawable *_gdk_drawable_begin_direct_draw (GdkDrawable *drawable,
 404                                               GdkGC *gc,
 405                                               gpointer *priv_data,
 406                                               gint *x_offset_out,
 407                                               gint *y_offset_out);
 408 void         _gdk_drawable_end_direct_draw (gpointer priv_data);
 409
 410
 411 /*****************************************
 412  * Interfaces provided by windowing code *
 413  *****************************************/
 414
 415 /* Font/string functions implemented in module-specific code */
 416
 417 void _gdk_colormap_real_destroy (GdkColormap *colormap);
 418
 419 void _gdk_cursor_destroy (GdkCursor *cursor);
 420
 421 void     _gdk_windowing_init                    (void);
 422
 423 extern const GOptionEntry _gdk_windowing_args[];
 424 void     _gdk_windowing_set_default_display     (GdkDisplay *display);
 425
 426 gchar *_gdk_windowing_substitute_screen_number (const gchar *display_name,
 427                                                 gint         screen_number);
 428
 429 gulong   _gdk_windowing_window_get_next_serial  (GdkDisplay *display);
 430 void     _gdk_windowing_window_get_offsets      (GdkWindow  *window,
 431                                                  gint       *x_offset,
 432                                                  gint       *y_offset);
 433 cairo_region_t *_gdk_windowing_window_get_shape      (GdkWindow  *window);
 434 cairo_region_t *_gdk_windowing_window_get_input_shape(GdkWindow  *window);
 435 cairo_region_t *_gdk_windowing_get_shape_for_mask    (GdkBitmap *mask);
 436 void     _gdk_windowing_window_beep             (GdkWindow *window);
 437
 438
 439 void       _gdk_windowing_get_device_state   (GdkDisplay       *display,
 440                                               GdkDevice        *device,
 441                                               GdkScreen       **screen,
 442                                               gint             *x,
 443                                               gint             *y,
 444                                               GdkModifierType  *mask);
 445 GdkWindow* _gdk_windowing_window_at_device_position  (GdkDisplay       *display,
 446                                                       GdkDevice        *device,
 447                                                       gint             *win_x,
 448                                                       gint             *win_y,
 449                                                       GdkModifierType  *mask,
 450                                                       gboolean          get_toplevel);
 451 GdkGrabStatus _gdk_windowing_device_grab     (GdkDevice        *device,
 452                                               GdkWindow        *window,
 453                                               GdkWindow        *native,
 454                                               gboolean          owner_events,
 455                                               GdkEventMask      event_mask,
 456                                               GdkWindow        *confine_to,
 457                                               GdkCursor        *cursor,
 458                                               guint32           time);
 459 void _gdk_windowing_got_event                (GdkDisplay       *display,
 460                                               GList            *event_link,
 461                                               GdkEvent         *event,
 462                                               gulong            serial);
 463
 464 void _gdk_windowing_window_process_updates_recurse (GdkWindow *window,
 465                                                     cairo_region_t *expose_region);
 466 void _gdk_windowing_before_process_all_updates     (void);
 467 void _gdk_windowing_after_process_all_updates      (void);
 468
 469 /* Return the number of bits-per-pixel for images of the specified depth. */
 470 gint _gdk_windowing_get_bits_for_depth (GdkDisplay *display,
 471                                         gint        depth);
 472
 473
 474 #define GDK_WINDOW_IS_MAPPED(window) ((((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
 475
 476
 477 /* Called when gdk_window_destroy() is called on a foreign window
 478  * or an ancestor of the foreign window. It should generally reparent
 479  * the window out of it's current heirarchy, hide it, and then
 480  * send a message to the owner requesting that the window be destroyed.
 481  */
 482 void _gdk_windowing_window_destroy_foreign (GdkWindow *window);
 483
 484 void _gdk_windowing_display_set_sm_client_id (GdkDisplay  *display,
 485                                               const gchar *sm_client_id);
 486
 487 void _gdk_windowing_window_set_composited (GdkWindow *window,
 488                                            gboolean composited);
 489
 490 #define GDK_TYPE_PAINTABLE            (_gdk_paintable_get_type ())
 491 #define GDK_PAINTABLE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PAINTABLE, GdkPaintable))
 492 #define GDK_IS_PAINTABLE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PAINTABLE))
 493 #define GDK_PAINTABLE_GET_IFACE(obj)  (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GDK_TYPE_PAINTABLE, GdkPaintableIface))
 494
 495 typedef struct _GdkPaintable        GdkPaintable;
 496 typedef struct _GdkPaintableIface   GdkPaintableIface;
 497
 498 struct _GdkPaintableIface
 499 {
 500   GTypeInterface g_iface;
 501
 502   void (* begin_paint_region)       (GdkPaintable    *paintable,
 503                                      GdkWindow       *window,
 504                                      const cairo_region_t *region);
 505   void (* end_paint)                (GdkPaintable    *paintable);
 506 };
 507
 508 GType _gdk_paintable_get_type (void) G_GNUC_CONST;
 509
 510 /* Implementation types */
 511 GType _gdk_window_impl_get_type (void) G_GNUC_CONST;
 512 GType _gdk_pixmap_impl_get_type (void) G_GNUC_CONST;
 513
 514
 515 /**
 516  * _gdk_windowing_gc_set_clip_region:
 517  * @gc: a #GdkGC
 518  * @region: the new clip region
 519  * @reset_origin: if TRUE, reset the clip_x/y_origin values to 0
 520  *
 521  * Do any window-system specific processing necessary
 522  * for a change in clip region. Since the clip origin
 523  * will likely change before the GC is used with the
 524  * new clip, frequently this function will only set a flag and
 525  * do the real processing later.
 526  *
 527  * When this function is called, _gdk_gc_get_clip_region
 528  * will already return the new region.
 529  **/
 530 void _gdk_windowing_gc_set_clip_region (GdkGC           *gc,
 531                                         const cairo_region_t *region,
 532                                         gboolean reset_origin);
 533
 534 /**
 535  * _gdk_windowing_gc_copy:
 536  * @dst_gc: a #GdkGC from the GDK backend
 537  * @src_gc: a #GdkGC from the GDK backend
 538  *
 539  * Copies backend specific state from @src_gc to @dst_gc.
 540  * This is called before the generic state is copied, so
 541  * the old generic state is still available from @dst_gc
 542  **/
 543 void _gdk_windowing_gc_copy (GdkGC *dst_gc,
 544                              GdkGC *src_gc);
 545
 546 /* Queries the current foreground color of a GdkGC */
 547 void _gdk_windowing_gc_get_foreground (GdkGC    *gc,
 548                                        GdkColor *color);
 549 /* Queries the current background color of a GdkGC */
 550 void _gdk_windowing_gc_get_background (GdkGC    *gc,
 551                                        GdkColor *color);
 552
 553 struct GdkAppLaunchContextPrivate
 554 {
 555   GdkDisplay *display;
 556   GdkScreen *screen;
 557   gint workspace;
 558   guint32 timestamp;
 559   GIcon *icon;
 560   char *icon_name;
 561 };
 562
 563 char *_gdk_windowing_get_startup_notify_id (GAppLaunchContext *context,
 564                                             GAppInfo          *info,
 565                                             GList             *files);
 566 void  _gdk_windowing_launch_failed         (GAppLaunchContext *context,
 567                                             const char        *startup_notify_id);
 568
 569 void _gdk_display_device_grab_update                     (GdkDisplay *display,
 570                                                           GdkDevice  *device,
 571                                                           gulong      current_serial);
 572 GdkDeviceGrabInfo  *_gdk_display_get_last_device_grab  (GdkDisplay *display,
 573                                                         GdkDevice  *device);
 574 GdkDeviceGrabInfo  *_gdk_display_add_device_grab   (GdkDisplay       *display,
 575                                                     GdkDevice        *device,
 576                                                     GdkWindow        *window,
 577                                                     GdkWindow        *native_window,
 578                                                     GdkGrabOwnership  grab_ownership,
 579                                                     gboolean          owner_events,
 580                                                     GdkEventMask      event_mask,
 581                                                     unsigned long     serial_start,
 582                                                     guint32           time,
 583                                                     gboolean          implicit);
 584 GdkDeviceGrabInfo  * _gdk_display_has_device_grab  (GdkDisplay *display,
 585                                                     GdkDevice  *device,
 586                                                     gulong      serial);
 587 gboolean _gdk_display_end_device_grab  (GdkDisplay *display,
 588                                         GdkDevice  *device,
 589                                         gulong      serial,
 590                                         GdkWindow  *if_child,
 591                                         gboolean    implicit);
 592 gboolean _gdk_display_check_grab_ownership (GdkDisplay *display,
 593                                             GdkDevice  *device,
 594                                             gulong      serial);
 595 void _gdk_display_enable_motion_hints     (GdkDisplay *display,
 596                                            GdkDevice  *device);
 597
 598 GdkPointerWindowInfo * _gdk_display_get_pointer_info (GdkDisplay *display,
 599                                                       GdkDevice  *device);
 600
 601 void _gdk_display_pointer_info_foreach (GdkDisplay                   *display,
 602                                         GdkDisplayPointerInfoForeach  func,
 603                                         gpointer                      user_data);
 604
 605 void _gdk_window_invalidate_for_expose (GdkWindow       *window,
 606                                         cairo_region_t       *region);
 607
 608 void _gdk_windowing_set_cairo_surface_size (cairo_surface_t *surface,
 609                                             int width,
 610                                             int height);
 611
 612 cairo_surface_t * _gdk_windowing_create_cairo_surface (GdkDrawable *drawable,
 613                                                        int width,
 614                                                        int height);
 615 GdkWindow * _gdk_window_find_child_at (GdkWindow *window,
 616                                        int x, int y);
 617 GdkWindow * _gdk_window_find_descendant_at (GdkWindow *toplevel,
 618                                             double x, double y,
 619                                             double *found_x,
 620                                             double *found_y);
 621
 622 void _gdk_window_add_damage (GdkWindow *toplevel,
 623                              cairo_region_t *damaged_region);
 624
 625 GdkEvent * _gdk_make_event (GdkWindow    *window,
 626                             GdkEventType  type,
 627                             GdkEvent     *event_in_queue,
 628                             gboolean      before_event);
 629 gboolean _gdk_window_event_parent_of (GdkWindow *parent,
 630                                       GdkWindow *child);
 631
 632 void _gdk_synthesize_crossing_events (GdkDisplay                 *display,
 633                                       GdkWindow                  *src,
 634                                       GdkWindow                  *dest,
 635                                       GdkDevice                  *device,
 636                                       GdkCrossingMode             mode,
 637                                       gint                        toplevel_x,
 638                                       gint                        toplevel_y,
 639                                       GdkModifierType             mask,
 640                                       guint32                     time_,
 641                                       GdkEvent                   *event_in_queue,
 642                                       gulong                      serial,
 643                                       gboolean                    non_linear);
 644 void _gdk_display_set_window_under_pointer (GdkDisplay *display,
 645                                             GdkDevice  *device,
 646                                             GdkWindow  *window);
 647
 648
 649 void _gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window);
 650
 651 cairo_region_t *_gdk_window_calculate_full_clip_region    (GdkWindow     *window,
 652                                                       GdkWindow     *base_window,
 653                                                       gboolean       do_children,
 654                                                       gint          *base_x_offset,
 655                                                       gint          *base_y_offset);
 656 gboolean    _gdk_window_has_impl (GdkWindow *window);
 657 GdkWindow * _gdk_window_get_impl_window (GdkWindow *window);
 658 GdkWindow *_gdk_window_get_input_window_for_event (GdkWindow *native_window,
 659                                                    GdkEventType event_type,
 660                                                    int x, int y,
 661                                                    gulong serial);
 662
 663 /*****************************
 664  * offscreen window routines *
 665  *****************************/
 666 GType gdk_offscreen_window_get_type (void);
 667 void       _gdk_offscreen_window_new                 (GdkWindow     *window,
 668                                                       GdkScreen     *screen,
 669                                                       GdkVisual     *visual,
 670                                                       GdkWindowAttr *attributes,
 671                                                       gint           attributes_mask);
 672
 673
 674 /************************************
 675  * Initialization and exit routines *
 676  ************************************/
 677
 678 void _gdk_windowing_exit (void);
 679
 680 G_END_DECLS
 681
 682 #endif /* __GDK_INTERNALS_H__ */