1 /* GDK - The GIMP Drawing Kit
4 * Copyright 2001 Sun Microsystems Inc.
6 * Erwann Chenede <erwann.chenede@sun.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
33 #include "gdkdisplay.h"
34 #include "gdkdisplay-x11.h"
35 #include "gdkscreen.h"
36 #include "gdkscreen-x11.h"
37 #include "gdkinternals.h"
38 #include "gdkinputprivate.h"
39 #include "xsettings-client.h"
41 #include <X11/Xatom.h>
44 #include <X11/XKBlib.h>
48 #include <X11/extensions/Xfixes.h>
51 static void gdk_display_x11_class_init (GdkDisplayX11Class *class);
52 static void gdk_display_x11_dispose (GObject *object);
53 static void gdk_display_x11_finalize (GObject *object);
56 static void gdk_internal_connection_watch (Display *display,
60 XPointer *watch_data);
61 #endif /* HAVE_X11R6 */
63 static gpointer parent_class = NULL;
65 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
66 * but including them here has the side-effect of getting them
67 * into the internal Xlib cache
69 static const char *const precache_atoms[] = {
83 "_NET_WM_STATE_STICKY",
84 "_NET_WM_STATE_MAXIMIZED_VERT",
85 "_NET_WM_STATE_MAXIMIZED_HORZ",
86 "_NET_WM_STATE_FULLSCREEN",
87 "_NET_WM_SYNC_REQUEST",
88 "_NET_WM_SYNC_REQUEST_COUNTER",
89 "_NET_WM_WINDOW_TYPE",
90 "_NET_WM_WINDOW_TYPE_NORMAL",
95 _gdk_display_x11_get_type (void)
97 static GType object_type = 0;
101 static const GTypeInfo object_info =
103 sizeof (GdkDisplayX11Class),
104 (GBaseInitFunc) NULL,
105 (GBaseFinalizeFunc) NULL,
106 (GClassInitFunc) gdk_display_x11_class_init,
107 NULL, /* class_finalize */
108 NULL, /* class_data */
109 sizeof (GdkDisplayX11),
111 (GInstanceInitFunc) NULL,
114 object_type = g_type_register_static (GDK_TYPE_DISPLAY,
123 gdk_display_x11_class_init (GdkDisplayX11Class * class)
125 GObjectClass *object_class = G_OBJECT_CLASS (class);
127 object_class->dispose = gdk_display_x11_dispose;
128 object_class->finalize = gdk_display_x11_finalize;
130 parent_class = g_type_class_peek_parent (class);
136 * @display_name: the name of the display to open
137 * @returns: a #GdkDisplay, or %NULL if the display
138 * could not be opened.
145 gdk_display_open (const gchar *display_name)
149 GdkDisplayX11 *display_x11;
153 const char *sm_client_id;
155 XClassHint *class_hint;
162 xdisplay = XOpenDisplay (display_name);
166 display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
167 display_x11 = GDK_DISPLAY_X11 (display);
169 display_x11->use_xshm = TRUE;
170 display_x11->xdisplay = xdisplay;
173 /* Set up handlers for Xlib internal connections */
174 XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
175 #endif /* HAVE_X11R6 */
177 /* initialize the display's screens */
178 display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
179 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
180 display_x11->screens[i] = _gdk_x11_screen_new (display, i);
182 /* We need to initialize events after we have the screen
183 * structures in places
185 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
186 _gdk_x11_events_init_screen (display_x11->screens[i]);
188 /*set the default screen */
189 display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
191 attr.window_type = GDK_WINDOW_TOPLEVEL;
192 attr.wclass = GDK_INPUT_OUTPUT;
199 display_x11->leader_gdk_window = gdk_window_new (GDK_SCREEN_X11 (display_x11->default_screen)->root_window,
200 &attr, GDK_WA_X | GDK_WA_Y);
201 display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
203 display_x11->leader_window_title_set = FALSE;
205 display_x11->have_render = GDK_UNKNOWN;
208 if (XFixesQueryExtension (display_x11->xdisplay,
209 &display_x11->xfixes_event_base,
212 display_x11->have_xfixes = TRUE;
214 gdk_x11_register_standard_event_type (display,
215 display_x11->xfixes_event_base,
220 display_x11->have_xfixes = FALSE;
222 if (_gdk_synchronize)
223 XSynchronize (display_x11->xdisplay, True);
225 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
227 class_hint = XAllocClassHint();
228 class_hint->res_name = g_get_prgname ();
230 class_hint->res_class = (char *)gdk_get_program_class ();
232 /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
233 * from argv[0], so we just synthesize an argument array here.
236 argv[0] = g_get_prgname ();
238 XmbSetWMProperties (display_x11->xdisplay,
239 display_x11->leader_window,
240 NULL, NULL, argv, argc, NULL, NULL,
244 sm_client_id = _gdk_get_sm_client_id ();
246 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
249 XChangeProperty (display_x11->xdisplay,
250 display_x11->leader_window,
251 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
252 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
254 /* We don't yet know a valid time. */
255 display_x11->user_time = 0;
259 gint xkb_major = XkbMajorVersion;
260 gint xkb_minor = XkbMinorVersion;
261 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
263 xkb_major = XkbMajorVersion;
264 xkb_minor = XkbMinorVersion;
266 if (XkbQueryExtension (display_x11->xdisplay,
267 NULL, &display_x11->xkb_event_type, NULL,
268 &xkb_major, &xkb_minor))
270 Bool detectable_autorepeat_supported;
272 display_x11->use_xkb = TRUE;
274 XkbSelectEvents (display_x11->xdisplay,
276 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
277 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
279 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
281 &detectable_autorepeat_supported);
283 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
284 detectable_autorepeat_supported ?
285 "supported" : "not supported"));
287 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
293 display_x11->use_sync = FALSE;
297 int error_base, event_base;
299 if (XSyncQueryExtension (display_x11->xdisplay,
300 &event_base, &error_base) &&
301 XSyncInitialize (display_x11->xdisplay,
303 display_x11->use_sync = TRUE;
307 _gdk_windowing_image_init (display);
308 _gdk_events_init (display);
309 _gdk_input_init (display);
310 _gdk_dnd_init (display);
312 g_signal_emit_by_name (gdk_display_manager_get(),
313 "display_opened", display);
320 * XLib internal connection handling
322 typedef struct _GdkInternalConnection GdkInternalConnection;
324 struct _GdkInternalConnection
332 process_internal_connection (GIOChannel *gioc,
336 GdkInternalConnection *connection = (GdkInternalConnection *)data;
338 GDK_THREADS_ENTER ();
340 XProcessInternalConnection ((Display*)connection->display, connection->fd);
342 GDK_THREADS_LEAVE ();
347 static GdkInternalConnection *
348 gdk_add_connection_handler (Display *display,
351 GIOChannel *io_channel;
352 GdkInternalConnection *connection;
354 connection = g_new (GdkInternalConnection, 1);
357 connection->display = display;
359 io_channel = g_io_channel_unix_new (fd);
361 connection->source = g_io_create_watch (io_channel, G_IO_IN);
362 g_source_set_callback (connection->source,
363 (GSourceFunc)process_internal_connection, connection, NULL);
364 g_source_attach (connection->source, NULL);
366 g_io_channel_unref (io_channel);
372 gdk_remove_connection_handler (GdkInternalConnection *connection)
374 g_source_destroy (connection->source);
379 gdk_internal_connection_watch (Display *display,
383 XPointer *watch_data)
386 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
388 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
390 #endif /* HAVE_X11R6 */
393 * gdk_display_get_name:
394 * @display: a #GdkDisplay
396 * Gets the name of the display.
398 * Returns: a string representing the display name. This string is owned
399 * by GDK and should not be modified or freed.
403 G_CONST_RETURN gchar *
404 gdk_display_get_name (GdkDisplay * display)
406 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
408 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
412 * gdk_display_get_n_screens:
413 * @display: a #GdkDisplay
415 * Gets the number of screen managed by the @display.
417 * Returns: number of screens.
422 gdk_display_get_n_screens (GdkDisplay * display)
424 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
426 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
430 * gdk_display_get_screen:
431 * @display: a #GdkDisplay
432 * @screen_num: the screen number
434 * Returns a screen object for one of the screens of the display.
436 * Returns: the #GdkScreen object
441 gdk_display_get_screen (GdkDisplay * display, gint screen_num)
443 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
444 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
446 return GDK_DISPLAY_X11 (display)->screens[screen_num];
450 * gdk_display_get_default_screen:
451 * @display: a #GdkDisplay
453 * Get the default #GdkScreen for @display.
455 * Returns: the default #GdkScreen object for @display
460 gdk_display_get_default_screen (GdkDisplay * display)
462 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
464 return GDK_DISPLAY_X11 (display)->default_screen;
468 _gdk_x11_display_is_root_window (GdkDisplay *display,
471 GdkDisplayX11 *display_x11;
474 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
476 display_x11 = GDK_DISPLAY_X11 (display);
478 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
480 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
487 * gdk_display_pointer_ungrab:
488 * @display: a #GdkDisplay.
489 * @time_: a timestap (e.g. GDK_CURRENT_TIME).
491 * Release any pointer grab.
496 gdk_display_pointer_ungrab (GdkDisplay *display,
501 g_return_if_fail (GDK_IS_DISPLAY (display));
503 xdisplay = GDK_DISPLAY_XDISPLAY (display);
505 _gdk_input_ungrab_pointer (display, time);
506 XUngrabPointer (xdisplay, time);
509 GDK_DISPLAY_X11 (display)->pointer_xgrab_window = NULL;
513 * gdk_display_pointer_is_grabbed:
514 * @display: a #GdkDisplay
516 * Test if the pointer is grabbed.
518 * Returns: %TRUE if an active X pointer grab is in effect
523 gdk_display_pointer_is_grabbed (GdkDisplay * display)
525 g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
527 return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL);
531 * gdk_display_keyboard_ungrab:
532 * @display: a #GdkDisplay.
533 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
535 * Release any keyboard grab
540 gdk_display_keyboard_ungrab (GdkDisplay *display,
545 g_return_if_fail (GDK_IS_DISPLAY (display));
547 xdisplay = GDK_DISPLAY_XDISPLAY (display);
549 XUngrabKeyboard (xdisplay, time);
552 GDK_DISPLAY_X11 (display)->keyboard_xgrab_window = NULL;
557 * @display: a #GdkDisplay
559 * Emits a short beep on @display
564 gdk_display_beep (GdkDisplay * display)
566 g_return_if_fail (GDK_IS_DISPLAY (display));
568 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
573 * @display: a #GdkDisplay
575 * Flushes any requests queued for the windowing system and waits until all
576 * requests have been handled. This is often used for making sure that the
577 * display is synchronized with the current state of the program. Calling
578 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
579 * generated from earlier requests are handled before the error trap is
582 * This is most useful for X11. On windowing systems where requests are
583 * handled synchronously, this function will do nothing.
588 gdk_display_sync (GdkDisplay * display)
590 g_return_if_fail (GDK_IS_DISPLAY (display));
592 XSync (GDK_DISPLAY_XDISPLAY (display), False);
597 * @display: a #GdkDisplay
599 * Flushes any requests queued for the windowing system; this happens automatically
600 * when the main loop blocks waiting for new events, but if your application
601 * is drawing without returning control to the main loop, you may need
602 * to call this function explicitely. A common case where this function
603 * needs to be called is when an application is executing drawing commands
604 * from a thread other than the thread where the main loop is running.
606 * This is most useful for X11. On windowing systems where requests are
607 * handled synchronously, this function will do nothing.
612 gdk_display_flush (GdkDisplay *display)
614 g_return_if_fail (GDK_IS_DISPLAY (display));
616 if (!display->closed)
617 XFlush (GDK_DISPLAY_XDISPLAY (display));
621 * gdk_display_get_default_group:
622 * @display: a #GdkDisplay
624 * Returns the default group leader window for all toplevel windows
625 * on @display. This window is implicitly created by GDK.
626 * See gdk_window_set_group().
628 * Return value: The default group leader window for @display
632 GdkWindow *gdk_display_get_default_group (GdkDisplay *display)
634 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
636 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
640 * gdk_x11_display_grab:
641 * @display: a #GdkDisplay
643 * Call XGrabServer() on @display.
644 * To ungrab the display again, use gdk_x11_display_ungrab().
646 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
651 gdk_x11_display_grab (GdkDisplay * display)
653 GdkDisplayX11 *display_x11;
655 g_return_if_fail (GDK_IS_DISPLAY (display));
657 display_x11 = GDK_DISPLAY_X11 (display);
659 if (display_x11->grab_count == 0)
660 XGrabServer (display_x11->xdisplay);
661 display_x11->grab_count++;
665 * gdk_x11_display_ungrab:
666 * @display: a #GdkDisplay
668 * Ungrab @display after it has been grabbed with
669 * gdk_x11_display_grab().
674 gdk_x11_display_ungrab (GdkDisplay * display)
676 GdkDisplayX11 *display_x11;
678 g_return_if_fail (GDK_IS_DISPLAY (display));
680 display_x11 = GDK_DISPLAY_X11 (display);;
681 g_return_if_fail (display_x11->grab_count > 0);
683 display_x11->grab_count--;
684 if (display_x11->grab_count == 0)
686 XUngrabServer (display_x11->xdisplay);
687 XFlush (display_x11->xdisplay);
692 gdk_display_x11_dispose (GObject *object)
694 GdkDisplayX11 *display_x11;
697 display_x11 = GDK_DISPLAY_X11 (object);
699 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
700 _gdk_screen_close (display_x11->screens[i]);
702 g_source_destroy (display_x11->event_source);
704 XCloseDisplay (display_x11->xdisplay);
705 display_x11->xdisplay = NULL;
707 G_OBJECT_CLASS (parent_class)->dispose (object);
711 gdk_display_x11_finalize (GObject *object)
713 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
716 /* FIXME need to write GdkKeymap finalize fct
717 g_object_unref (display_x11->keymap);
720 if (display_x11->motif_target_lists)
722 for (i = 0; i < display_x11->motif_n_target_lists; i++)
723 g_list_free (display_x11->motif_target_lists[i]);
724 g_free (display_x11->motif_target_lists);
728 g_hash_table_destroy (display_x11->atom_from_virtual);
729 g_hash_table_destroy (display_x11->atom_to_virtual);
731 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
732 /* list of filters for client messages */
733 g_list_free (display_x11->client_filters);
734 /* List of event window extraction functions */
735 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
736 g_slist_free (display_x11->event_types);
738 g_hash_table_destroy (display_x11->xid_ht);
739 /* input GdkDevice list */
740 /* FIXME need to write finalize fct */
741 for (tmp = display_x11->input_devices; tmp; tmp = tmp->next)
742 g_object_unref (tmp->data);
743 g_list_free (display_x11->input_devices);
744 /* input GdkWindow list */
745 for (tmp = display_x11->input_windows; tmp; tmp = tmp->next)
746 g_object_unref (tmp->data);
747 g_list_free (display_x11->input_windows);
748 /* Free all GdkScreens */
749 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
750 g_object_unref (display_x11->screens[i]);
751 g_free (display_x11->screens);
752 g_free (display_x11->startup_notification_id);
754 G_OBJECT_CLASS (parent_class)->finalize (object);
758 * gdk_x11_lookup_xdisplay:
759 * @xdisplay: a pointer to an X Display
761 * Find the #GdkDisplay corresponding to @display, if any exists.
763 * Return value: the #GdkDisplay, if found, otherwise %NULL.
768 gdk_x11_lookup_xdisplay (Display *xdisplay)
772 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
774 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
775 return tmp_list->data;
782 * _gdk_x11_display_screen_for_xrootwin:
783 * @display: a #Display
784 * @xrootwin: window ID for one of of the screen's of the display.
786 * Given the root window ID of one of the screen's of a #GdkDisplay,
789 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
792 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
797 n_screens = gdk_display_get_n_screens (display);
798 for (i = 0; i < n_screens; i++)
800 GdkScreen *screen = gdk_display_get_screen (display, i);
801 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
809 * gdk_x11_display_get_xdisplay:
810 * @display: a #GdkDisplay
811 * @returns: an X display.
813 * Returns the X display of a #GdkDisplay.
818 gdk_x11_display_get_xdisplay (GdkDisplay *display)
820 return GDK_DISPLAY_X11 (display)->xdisplay;
824 _gdk_windowing_set_default_display (GdkDisplay *display)
826 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
827 const gchar *startup_id;
830 gdk_display = GDK_DISPLAY_XDISPLAY (display);
834 g_free (display_x11->startup_notification_id);
835 display_x11->startup_notification_id = NULL;
837 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
838 if (startup_id && *startup_id != '\0')
840 if (!g_utf8_validate (startup_id, -1, NULL))
841 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
843 display_x11->startup_notification_id = g_strdup (startup_id);
845 /* Clear the environment variable so it won't be inherited by
846 * child processes and confuse things.
848 g_unsetenv ("DESKTOP_STARTUP_ID");
850 /* Set the startup id on the leader window so it
851 * applies to all windows we create on this display
853 XChangeProperty (display_x11->xdisplay,
854 display_x11->leader_window,
855 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
856 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
858 startup_id, strlen (startup_id));
863 escape_for_xmessage (const char *str)
868 retval = g_string_new (NULL);
878 g_string_append_c (retval, '\\');
882 g_string_append_c (retval, *p);
886 return g_string_free (retval, FALSE);
890 broadcast_xmessage (GdkDisplay *display,
891 const char *message_type,
892 const char *message_type_begin,
895 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
896 GdkScreen *screen = gdk_display_get_default_screen (display);
897 GdkWindow *root_window = gdk_screen_get_root_window (screen);
898 Window xroot_window = GDK_WINDOW_XID (root_window);
901 Atom type_atom_begin;
905 XSetWindowAttributes attrs;
907 attrs.override_redirect = True;
908 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
911 XCreateWindow (xdisplay,
918 CWOverrideRedirect | CWEventMask,
922 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
924 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
934 xevent.xclient.type = ClientMessage;
935 xevent.xclient.message_type = type_atom_begin;
936 xevent.xclient.display =xdisplay;
937 xevent.xclient.window = xwindow;
938 xevent.xclient.format = 8;
941 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
943 while (src != src_end)
945 dest = &xevent.xclient.data.b[0];
946 dest_end = dest + 20;
948 while (dest != dest_end &&
956 while (dest != dest_end)
962 XSendEvent (xdisplay,
968 xevent.xclient.message_type = type_atom;
972 XDestroyWindow (xdisplay, xwindow);
977 * gdk_notify_startup_complete:
979 * Indicates to the GUI environment that the application has finished
980 * loading. If the applications opens windows, this function is
981 * normally called after opening the application's initial set of
984 * GTK+ will call this function automatically after opening the first
985 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
986 * to disable that feature.
991 gdk_notify_startup_complete (void)
994 GdkDisplayX11 *display_x11;
998 display = gdk_display_get_default ();
1002 display_x11 = GDK_DISPLAY_X11 (display);
1004 if (display_x11->startup_notification_id == NULL)
1007 escaped_id = escape_for_xmessage (display_x11->startup_notification_id);
1008 message = g_strdup_printf ("remove: ID=%s", escaped_id);
1009 g_free (escaped_id);
1011 broadcast_xmessage (display,
1012 "_NET_STARTUP_INFO",
1013 "_NET_STARTUP_INFO_BEGIN",
1021 * gdk_display_supports_selection_notification:
1022 * @display: a #GdkDisplay
1024 * Returns whether #GdkEventOwnerChange events will be
1025 * sent when the owner of a selection changes.
1027 * Return value: whether #GdkEventOwnerChange events will
1033 gdk_display_supports_selection_notification (GdkDisplay *display)
1035 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1037 return display_x11->have_xfixes;
1041 * gdk_display_request_selection_notification:
1042 * @display: a #GdkDisplay
1043 * @selection: the #GdkAtom naming the selection for which
1044 * ownership change notification is requested
1046 * Request #GdkEventOwnerChange events for ownership changes
1047 * of the selection named by the given atom.
1049 * Return value: whether #GdkEventOwnerChange events will
1054 gboolean gdk_display_request_selection_notification (GdkDisplay *display,
1059 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1062 if (display_x11->have_xfixes)
1064 atom = gdk_x11_atom_to_xatom_for_display (display,
1066 XFixesSelectSelectionInput (display_x11->xdisplay,
1067 display_x11->leader_window,
1069 XFixesSetSelectionOwnerNotifyMask |
1070 XFixesSelectionWindowDestroyNotifyMask |
1071 XFixesSelectionClientCloseNotifyMask);