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gtk/gdk/x11/gdkx.h
Havoc Pennington b837ef5a6d Revamp and modernize X error traps 
* add per-display gdk_x11_display_error_trap_push()
  (X11-specific because gdk_error_trap_push() probably
  should have been)
* make gdk_error_trap_push() handle only GDK displays
  not displays opened without a GDK wrapper
* make gdk_error_trap_pop() and gdk_x11_display_error_trap_pop()
  automatically sync only if needed, so manual gdk_flush() is not
  required
* add gdk_error_trap_pop_ignored() which just asynchronously
  ignores errors, so never needs to sync
* add G_GNUC_WARN_UNUSED_RESULT to plain pop(), because
  if you use plain pop() and don't need the return value,
  the async gdk_error_trap_pop_ignored() should be used
  instead. This results in lots of warnings to clean
  up in a later patch.

The main objective here was to avoid the need to sync just
to ignore an error. Now, syncing is automatic, and only
happens when we need to know the error code.

https://bugzilla.gnome.org/show_bug.cgi?id=629608
2010-09-18 18:19:27 -04:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GDK_X_H__
#define __GDK_X_H__
#include <gdk/gdkprivate.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
G_BEGIN_DECLS
Display *gdk_x11_drawable_get_xdisplay (GdkDrawable *drawable);
XID gdk_x11_drawable_get_xid (GdkDrawable *drawable);
GdkDrawable *gdk_x11_window_get_drawable_impl (GdkWindow *window);
GdkDrawable *gdk_x11_pixmap_get_drawable_impl (GdkPixmap *pixmap);
Display *gdk_x11_colormap_get_xdisplay (GdkColormap *colormap);
Colormap gdk_x11_colormap_get_xcolormap (GdkColormap *colormap);
Display *gdk_x11_cursor_get_xdisplay (GdkCursor *cursor);
Cursor gdk_x11_cursor_get_xcursor (GdkCursor *cursor);
Display *gdk_x11_display_get_xdisplay (GdkDisplay *display);
Visual * gdk_x11_visual_get_xvisual (GdkVisual *visual);
Screen * gdk_x11_screen_get_xscreen (GdkScreen *screen);
int gdk_x11_screen_get_screen_number (GdkScreen *screen);
void gdk_x11_window_set_user_time (GdkWindow *window,
guint32 timestamp);
void gdk_x11_window_move_to_current_desktop (GdkWindow *window);
const char* gdk_x11_screen_get_window_manager_name (GdkScreen *screen);
#ifndef GDK_MULTIHEAD_SAFE
Window gdk_x11_get_default_root_xwindow (void);
Display *gdk_x11_get_default_xdisplay (void);
gint gdk_x11_get_default_screen (void);
#endif
#define GDK_COLORMAP_XDISPLAY(cmap) (gdk_x11_colormap_get_xdisplay (cmap))
#define GDK_COLORMAP_XCOLORMAP(cmap) (gdk_x11_colormap_get_xcolormap (cmap))
#define GDK_CURSOR_XDISPLAY(cursor) (gdk_x11_cursor_get_xdisplay (cursor))
#define GDK_CURSOR_XCURSOR(cursor) (gdk_x11_cursor_get_xcursor (cursor))
#ifdef GDK_COMPILATION
#include "gdkprivate-x11.h"
#include "gdkscreen-x11.h"
#define GDK_DISPLAY_XDISPLAY(display) (GDK_DISPLAY_X11(display)->xdisplay)
#define GDK_WINDOW_XDISPLAY(win) (GDK_SCREEN_X11 (GDK_WINDOW_SCREEN (win))->xdisplay)
#define GDK_WINDOW_XID(win) (GDK_DRAWABLE_IMPL_X11(((GdkWindowObject *)win)->impl)->xid)
#define GDK_PIXMAP_XDISPLAY(pix) (GDK_SCREEN_X11 (GDK_PIXMAP_SCREEN (pix))->xdisplay)
#define GDK_PIXMAP_XID(pix) (GDK_DRAWABLE_IMPL_X11(((GdkPixmapObject *)pix)->impl)->xid)
#define GDK_DRAWABLE_XDISPLAY(win) (GDK_IS_WINDOW (win) ? GDK_WINDOW_XDISPLAY (win) : GDK_PIXMAP_XDISPLAY (win))
#define GDK_DRAWABLE_XID(win) (GDK_IS_WINDOW (win) ? GDK_WINDOW_XID (win) : GDK_PIXMAP_XID (win))
#define GDK_SCREEN_XDISPLAY(screen) (GDK_SCREEN_X11 (screen)->xdisplay)
#define GDK_SCREEN_XSCREEN(screen) (GDK_SCREEN_X11 (screen)->xscreen)
#define GDK_SCREEN_XNUMBER(screen) (GDK_SCREEN_X11 (screen)->screen_num)
#define GDK_VISUAL_XVISUAL(vis) (((GdkVisualPrivate *) vis)->xvisual)
#define GDK_WINDOW_XWINDOW GDK_DRAWABLE_XID
#else /* GDK_COMPILATION */
#ifndef GDK_MULTIHEAD_SAFE
#define GDK_ROOT_WINDOW() (gdk_x11_get_default_root_xwindow ())
#endif
#define GDK_DISPLAY_XDISPLAY(display) (gdk_x11_display_get_xdisplay (display))
#define GDK_WINDOW_XDISPLAY(win) (gdk_x11_drawable_get_xdisplay (gdk_x11_window_get_drawable_impl (win)))
#define GDK_WINDOW_XID(win) (gdk_x11_drawable_get_xid (win))
#define GDK_WINDOW_XWINDOW(win) (gdk_x11_drawable_get_xid (win))
#define GDK_PIXMAP_XDISPLAY(win) (gdk_x11_drawable_get_xdisplay (gdk_x11_pixmap_get_drawable_impl (win)))
#define GDK_PIXMAP_XID(win) (gdk_x11_drawable_get_xid (win))
#define GDK_DRAWABLE_XDISPLAY(win) (gdk_x11_drawable_get_xdisplay (win))
#define GDK_DRAWABLE_XID(win) (gdk_x11_drawable_get_xid (win))
#define GDK_SCREEN_XDISPLAY(screen) (gdk_x11_display_get_xdisplay (gdk_screen_get_display (screen)))
#define GDK_SCREEN_XSCREEN(screen) (gdk_x11_screen_get_xscreen (screen))
#define GDK_SCREEN_XNUMBER(screen) (gdk_x11_screen_get_screen_number (screen))
#define GDK_VISUAL_XVISUAL(visual) (gdk_x11_visual_get_xvisual (visual))
#endif /* GDK_COMPILATION */
GdkVisual* gdk_x11_screen_lookup_visual (GdkScreen *screen,
VisualID xvisualid);
#ifndef GDK_MULTIHEAD_SAFE
GdkVisual* gdkx_visual_get (VisualID xvisualid);
#endif
GdkColormap *gdk_x11_colormap_foreign_new (GdkVisual *visual,
Colormap xcolormap);
/* Return the Gdk* for a particular XID */
gpointer gdk_xid_table_lookup_for_display (GdkDisplay *display,
XID xid);
guint32 gdk_x11_get_server_time (GdkWindow *window);
guint32 gdk_x11_display_get_user_time (GdkDisplay *display);
G_CONST_RETURN gchar *gdk_x11_display_get_startup_notification_id (GdkDisplay *display);
void gdk_x11_display_set_cursor_theme (GdkDisplay *display,
const gchar *theme,
const gint size);
void gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
const char *message_type,
...) G_GNUC_NULL_TERMINATED;
/* returns TRUE if we support the given WM spec feature */
gboolean gdk_x11_screen_supports_net_wm_hint (GdkScreen *screen,
GdkAtom property);
XID gdk_x11_screen_get_monitor_output (GdkScreen *screen,
gint monitor_num);
#ifndef GDK_MULTIHEAD_SAFE
gpointer gdk_xid_table_lookup (XID xid);
gboolean gdk_net_wm_supports (GdkAtom property);
void gdk_x11_grab_server (void);
void gdk_x11_ungrab_server (void);
#endif
GdkDisplay *gdk_x11_lookup_xdisplay (Display *xdisplay);
/* Functions to get the X Atom equivalent to the GdkAtom */
Atom gdk_x11_atom_to_xatom_for_display (GdkDisplay *display,
GdkAtom atom);
GdkAtom gdk_x11_xatom_to_atom_for_display (GdkDisplay *display,
Atom xatom);
Atom gdk_x11_get_xatom_by_name_for_display (GdkDisplay *display,
const gchar *atom_name);
G_CONST_RETURN gchar *gdk_x11_get_xatom_name_for_display (GdkDisplay *display,
Atom xatom);
#ifndef GDK_MULTIHEAD_SAFE
Atom gdk_x11_atom_to_xatom (GdkAtom atom);
GdkAtom gdk_x11_xatom_to_atom (Atom xatom);
Atom gdk_x11_get_xatom_by_name (const gchar *atom_name);
G_CONST_RETURN gchar *gdk_x11_get_xatom_name (Atom xatom);
#endif
void gdk_x11_display_grab (GdkDisplay *display);
void gdk_x11_display_ungrab (GdkDisplay *display);
void gdk_x11_display_error_trap_push (GdkDisplay *display);
/* warn unused because you could use pop_ignored otherwise */
G_GNUC_WARN_UNUSED_RESULT gint gdk_x11_display_error_trap_pop (GdkDisplay *display);
void gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display);
void gdk_x11_register_standard_event_type (GdkDisplay *display,
gint event_base,
gint n_events);
G_END_DECLS
#endif /* __GDK_X_H__ */
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