GDK_ROOT_WINDOW

#define GDK_ROOT_WINDOW()             (gdk_x11_get_default_root_xwindow ())

Obtains the Xlib window id of the root window of the current screen.

GDK_WINDOW_XID()

#define             GDK_WINDOW_XID(win)

Returns the X window belonging to a GdkWindow.

GDK_DISPLAY_XDISPLAY()

#define             GDK_DISPLAY_XDISPLAY(display)

GDK_SCREEN_XDISPLAY()

#define             GDK_SCREEN_XDISPLAY(screen)

Returns the display of a X11 GdkScreen.

GDK_SCREEN_XNUMBER()

#define GDK_SCREEN_XNUMBER(screen) (gdk_x11_screen_get_screen_number (screen))

Returns the index of a X11 GdkScreen.

GDK_SCREEN_XSCREEN()

#define GDK_SCREEN_XSCREEN(screen) (gdk_x11_screen_get_xscreen (screen))

Returns the screen of a X11 GdkScreen.

GDK_CURSOR_XCURSOR()

#define GDK_CURSOR_XCURSOR(cursor)    (gdk_x11_cursor_get_xcursor (cursor))

Returns the X cursor belonging to a GdkCursor.

GDK_CURSOR_XDISPLAY()

#define GDK_CURSOR_XDISPLAY(cursor)   (gdk_x11_cursor_get_xdisplay (cursor))

Returns the display of a GdkCursor.

GDK_POINTER_TO_XID()

#define GDK_POINTER_TO_XID(pointer) GPOINTER_TO_UINT(pointer)

Converts a gpointer back to an XID that was previously converted using GDK_XID_TO_POINTER().

GDK_XID_TO_POINTER()

#define GDK_XID_TO_POINTER(xid) GUINT_TO_POINTER(xid)

Converts an XID into a gpointer . This is useful with data structures that use pointer arguments such as GHashTable. Use GDK_POINTER_TO_XID() to convert the argument back to an XID.

gdk_x11_lookup_xdisplay ()

GdkDisplay *
gdk_x11_lookup_xdisplay (Display *xdisplay);

Find the GdkDisplay corresponding to xdisplay , if any exists.

Since: 2.2

gdk_x11_get_server_time ()

guint32
gdk_x11_get_server_time (GdkWindow *window);

Routine to get the current X server time stamp.

gdk_x11_device_get_id ()

gint
gdk_x11_device_get_id (GdkDevice *device);

Returns the device ID as seen by XInput2.

Since: 3.2

gdk_x11_device_manager_lookup ()

GdkDevice *
gdk_x11_device_manager_lookup (GdkDeviceManager *device_manager,
                               gint device_id);

Returns the GdkDevice that wraps the given device ID.

Since: 3.2

gdk_x11_display_get_user_time ()

guint32
gdk_x11_display_get_user_time (GdkDisplay *display);

Returns the timestamp of the last user interaction on display . The timestamp is taken from events caused by user interaction such as key presses or pointer movements. See gdk_x11_window_set_user_time().

Since: 2.8

gdk_x11_display_broadcast_startup_message ()

void
gdk_x11_display_broadcast_startup_message
                               (GdkDisplay *display,
                                const char *message_type,
                                ...);

Sends a startup notification message of type message_type to display .

This is a convenience function for use by code that implements the freedesktop startup notification specification. Applications should not normally need to call it directly. See the Startup Notification Protocol specification for definitions of the message types and keys that can be used.

Since: 2.12

gdk_x11_display_get_startup_notification_id ()

const gchar *
gdk_x11_display_get_startup_notification_id
                               (GdkDisplay *display);

Gets the startup notification ID for a display.

Since: 2.12

gdk_x11_display_set_startup_notification_id ()

void
gdk_x11_display_set_startup_notification_id
                               (GdkDisplay *display,
                                const gchar *startup_id);

Sets the startup notification ID for a display.

This is usually taken from the value of the DESKTOP_STARTUP_ID environment variable, but in some cases (such as the application not being launched using exec()) it can come from other sources.

If the ID contains the string "_TIME" then the portion following that string is taken to be the X11 timestamp of the event that triggered the application to be launched and the GDK current event time is set accordingly.

The startup ID is also what is used to signal that the startup is complete (for example, when opening a window or when calling gdk_notify_startup_complete()).

Since: 3.0

gdk_x11_display_get_xdisplay ()

Display *
gdk_x11_display_get_xdisplay (GdkDisplay *display);

Returns the X display of a GdkDisplay.

Since: 2.2

gdk_x11_display_grab ()

void
gdk_x11_display_grab (GdkDisplay *display);

Call XGrabServer() on display . To ungrab the display again, use gdk_x11_display_ungrab().

gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.

Since: 2.2

gdk_x11_display_ungrab ()

void
gdk_x11_display_ungrab (GdkDisplay *display);

Ungrab display after it has been grabbed with gdk_x11_display_grab().

Since: 2.2

gdk_x11_display_error_trap_push ()

void
gdk_x11_display_error_trap_push (GdkDisplay *display);

Begins a range of X requests on display for which X error events will be ignored. Unignored errors (when no trap is pushed) will abort the application. Use gdk_x11_display_error_trap_pop() or gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed with this function.

See also gdk_error_trap_push() to push a trap on all displays.

Since: 3.0

gdk_x11_display_error_trap_pop ()

gint
gdk_x11_display_error_trap_pop (GdkDisplay *display);

Pops the error trap pushed by gdk_x11_display_error_trap_push(). Will XSync() if necessary and will always block until the error is known to have occurred or not occurred, so the error code can be returned.

If you don’t need to use the return value, gdk_x11_display_error_trap_pop_ignored() would be more efficient.

See gdk_error_trap_pop() for the all-displays-at-once equivalent.

Since: 3.0

gdk_x11_display_error_trap_pop_ignored ()

void
gdk_x11_display_error_trap_pop_ignored
                               (GdkDisplay *display);

Pops the error trap pushed by gdk_x11_display_error_trap_push(). Does not block to see if an error occurred; merely records the range of requests to ignore errors for, and ignores those errors if they arrive asynchronously.

See gdk_error_trap_pop_ignored() for the all-displays-at-once equivalent.

Since: 3.0

gdk_x11_display_set_cursor_theme ()

void
gdk_x11_display_set_cursor_theme (GdkDisplay *display,
                                  const gchar *theme,
                                  const gint size);

Sets the cursor theme from which the images for cursor should be taken.

If the windowing system supports it, existing cursors created with gdk_cursor_new(), gdk_cursor_new_for_display() and gdk_cursor_new_from_name() are updated to reflect the theme change. Custom cursors constructed with gdk_cursor_new_from_pixbuf() will have to be handled by the application (GTK+ applications can learn about cursor theme changes by listening for change notification for the corresponding GtkSetting).

Since: 2.8

gdk_x11_display_set_window_scale ()

void
gdk_x11_display_set_window_scale (GdkDisplay *display,
                                  gint scale);

Forces a specific window scale for all windows on this display, instead of using the default or user configured scale. This is can be used to disable scaling support by setting scale to 1, or to programmatically set the window scale.

Once the scale is set by this call it will not change in response to later user configuration changes.

Since: 3.10

gdk_x11_display_get_glx_version ()

gboolean
gdk_x11_display_get_glx_version (GdkDisplay *display,
                                 gint *major,
                                 gint *minor);

Retrieves the version of the GLX implementation.

Since: 3.16

gdk_x11_register_standard_event_type ()

void
gdk_x11_register_standard_event_type (GdkDisplay *display,
                                      gint event_base,
                                      gint n_events);

Registers interest in receiving extension events with type codes between event_base and event_base + n_events - 1. The registered events must have the window field in the same place as core X events (this is not the case for e.g. XKB extension events).

If an event type is registered, events of this type will go through global and window-specific filters (see gdk_window_add_filter()). Unregistered events will only go through global filters. GDK may register the events of some X extensions on its own.

This function should only be needed in unusual circumstances, e.g. when filtering XInput extension events on the root window.

Since: 2.4

gdk_x11_screen_get_screen_number ()

int
gdk_x11_screen_get_screen_number (GdkScreen *screen);

Returns the index of a GdkScreen.

Since: 2.2

gdk_x11_screen_get_xscreen ()

Screen *
gdk_x11_screen_get_xscreen (GdkScreen *screen);

Returns the screen of a GdkScreen.

Since: 2.2

gdk_x11_screen_get_window_manager_name ()

const char *
gdk_x11_screen_get_window_manager_name
                               (GdkScreen *screen);

Returns the name of the window manager for screen .

Since: 2.2

gdk_x11_screen_get_monitor_output ()

XID
gdk_x11_screen_get_monitor_output (GdkScreen *screen,
                                   gint monitor_num);

Gets the XID of the specified output/monitor. If the X server does not support version 1.2 of the RANDR extension, 0 is returned.

Since: 2.14

gdk_x11_screen_lookup_visual ()

GdkVisual *
gdk_x11_screen_lookup_visual (GdkScreen *screen,
                              VisualID xvisualid);

Looks up the GdkVisual for a particular screen and X Visual ID.

Since: 2.2

gdk_x11_screen_supports_net_wm_hint ()

gboolean
gdk_x11_screen_supports_net_wm_hint (GdkScreen *screen,
                                     GdkAtom property);

This function is specific to the X11 backend of GDK, and indicates whether the window manager supports a certain hint from the Extended Window Manager Hints specification.

When using this function, keep in mind that the window manager can change over time; so you shouldn’t use this function in a way that impacts persistent application state. A common bug is that your application can start up before the window manager does when the user logs in, and before the window manager starts gdk_x11_screen_supports_net_wm_hint() will return FALSE for every property. You can monitor the window_manager_changed signal on GdkScreen to detect a window manager change.

Since: 2.2

gdk_x11_screen_get_number_of_desktops ()

guint32
gdk_x11_screen_get_number_of_desktops (GdkScreen *screen);

Returns the number of workspaces for screen when running under a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints specification.

Since: 3.10

gdk_x11_screen_get_current_desktop ()

guint32
gdk_x11_screen_get_current_desktop (GdkScreen *screen);

Returns the current workspace for screen when running under a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints specification.

Since: 3.10

gdk_x11_window_foreign_new_for_display ()

GdkWindow *
gdk_x11_window_foreign_new_for_display
                               (GdkDisplay *display,
                                Window window);

Wraps a native window in a GdkWindow. The function will try to look up the window using gdk_x11_window_lookup_for_display() first. If it does not find it there, it will create a new window.

This may fail if the window has been destroyed. If the window was already known to GDK, a new reference to the existing GdkWindow is returned.

Since: 2.24

gdk_x11_window_lookup_for_display ()

GdkWindow *
gdk_x11_window_lookup_for_display (GdkDisplay *display,
                                   Window window);

Looks up the GdkWindow that wraps the given native window handle.

Since: 2.24

gdk_x11_window_get_xid ()

Window
gdk_x11_window_get_xid (GdkWindow *window);

Returns the X resource (window) belonging to a GdkWindow.

gdk_x11_window_set_hide_titlebar_when_maximized ()

void
gdk_x11_window_set_hide_titlebar_when_maximized
                               (GdkWindow *window,
                                gboolean hide_titlebar_when_maximized);

Set a hint for the window manager, requesting that the titlebar should be hidden when the window is maximized.

Note that this property is automatically updated by GTK+, so this function should only be used by applications which do not use GTK+ to create toplevel windows.

Since: 3.4

gdk_x11_window_set_theme_variant ()

void
gdk_x11_window_set_theme_variant (GdkWindow *window,
                                  char *variant);

GTK+ applications can request a dark theme variant. In order to make other applications - namely window managers using GTK+ for themeing - aware of this choice, GTK+ uses this function to export the requested theme variant as _GTK_THEME_VARIANT property on toplevel windows.

Note that this property is automatically updated by GTK+, so this function should only be used by applications which do not use GTK+ to create toplevel windows.

Since: 3.2

gdk_x11_window_set_user_time ()

void
gdk_x11_window_set_user_time (GdkWindow *window,
                              guint32 timestamp);

The application can use this call to update the _NET_WM_USER_TIME property on a toplevel window. This property stores an Xserver time which represents the time of the last user input event received for this window. This property may be used by the window manager to alter the focus, stacking, and/or placement behavior of windows when they are mapped depending on whether the new window was created by a user action or is a "pop-up" window activated by a timer or some other event.

Note that this property is automatically updated by GDK, so this function should only be used by applications which handle input events bypassing GDK.

Since: 2.6

gdk_x11_window_move_to_current_desktop ()

void
gdk_x11_window_move_to_current_desktop
                               (GdkWindow *window);

Moves the window to the correct workspace when running under a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints specification. Will not do anything if the window is already on all workspaces.

Since: 2.8

gdk_x11_window_move_to_desktop ()

void
gdk_x11_window_move_to_desktop (GdkWindow *window,
                                guint32 desktop);

Moves the window to the given workspace when running unde a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints specification.

Since: 3.10

gdk_x11_window_get_desktop ()

guint32
gdk_x11_window_get_desktop (GdkWindow *window);

Gets the number of the workspace window is on.

Since: 3.10

gdk_x11_window_set_utf8_property ()

void
gdk_x11_window_set_utf8_property (GdkWindow *window,
                                  const gchar *name,
                                  const gchar *value);

This function modifies or removes an arbitrary X11 window property of type UTF8_STRING. If the given window is not a toplevel window, it is ignored.

Since: 3.4

gdk_x11_window_set_frame_extents ()

void
gdk_x11_window_set_frame_extents (GdkWindow *window,
                                  int left,
                                  int right,
                                  int top,
                                  int bottom);

This is the same as gdk_window_set_shadow_width() but it only works on GdkX11Window.

Since: 3.10

gdk_x11_window_set_frame_sync_enabled ()

void
gdk_x11_window_set_frame_sync_enabled (GdkWindow *window,
                                       gboolean frame_sync_enabled);

This function can be used to disable frame synchronization for a window. Normally frame synchronziation will be enabled or disabled based on whether the system has a compositor that supports frame synchronization, but if the window is not directly managed by the window manager, then frame synchronziation may need to be disabled. This is the case for a window embedded via the XEMBED protocol.

Since: 3.8

gdk_x11_get_default_root_xwindow ()

Window
gdk_x11_get_default_root_xwindow (void);

Gets the root window of the default screen (see gdk_x11_get_default_screen()).

gdk_x11_get_default_screen ()

gint
gdk_x11_get_default_screen (void);

Gets the default GTK+ screen number.

gdk_x11_get_default_xdisplay ()

Display *
gdk_x11_get_default_xdisplay (void);

Gets the default GTK+ display.

gdk_x11_grab_server ()

void
gdk_x11_grab_server (void);

Call gdk_x11_display_grab() on the default display. To ungrab the server again, use gdk_x11_ungrab_server().

gdk_x11_grab_server()/gdk_x11_ungrab_server() calls can be nested.

gdk_x11_ungrab_server ()

void
gdk_x11_ungrab_server (void);

Ungrab the default display after it has been grabbed with gdk_x11_grab_server().

gdk_x11_get_parent_relative_pattern ()

cairo_pattern_t *
gdk_x11_get_parent_relative_pattern (void);

Used with gdk_window_set_background_pattern() to inherit background from parent window. Useful for imitating transparency when compositing is not available. Otherwise behaves like a transparent pattern.

Since: 3.24.2

gdk_x11_cursor_get_xcursor ()

Cursor
gdk_x11_cursor_get_xcursor (GdkCursor *cursor);

Returns the X cursor belonging to a GdkCursor.

gdk_x11_cursor_get_xdisplay ()

Display *
gdk_x11_cursor_get_xdisplay (GdkCursor *cursor);

Returns the display of a GdkCursor.

gdk_x11_keymap_get_group_for_state ()

gint
gdk_x11_keymap_get_group_for_state (GdkKeymap *keymap,
                                    guint state);

Extracts the group from the state field sent in an X Key event. This is only needed for code processing raw X events, since GdkEventKey directly includes an is_modifier field.

Since: 3.6

gdk_x11_keymap_key_is_modifier ()

gboolean
gdk_x11_keymap_key_is_modifier (GdkKeymap *keymap,
                                guint keycode);

Determines whether a particular key code represents a key that is a modifier. That is, it’s a key that normally just affects the keyboard state and the behavior of other keys rather than producing a direct effect itself. This is only needed for code processing raw X events, since GdkEventKey directly includes an is_modifier field.

Since: 3.6

gdk_x11_visual_get_xvisual ()

Visual *
gdk_x11_visual_get_xvisual (GdkVisual *visual);

Returns the X visual belonging to a GdkVisual.

gdk_x11_atom_to_xatom ()

Atom
gdk_x11_atom_to_xatom (GdkAtom atom);

Converts from a GdkAtom to the X atom for the default GDK display with the same string value.

gdk_x11_atom_to_xatom_for_display ()

Atom
gdk_x11_atom_to_xatom_for_display (GdkDisplay *display,
                                   GdkAtom atom);

Converts from a GdkAtom to the X atom for a GdkDisplay with the same string value. The special value GDK_NONE is converted to None.

Since: 2.2

gdk_x11_xatom_to_atom ()

GdkAtom
gdk_x11_xatom_to_atom (Atom xatom);

Convert from an X atom for the default display to the corresponding GdkAtom.

gdk_x11_xatom_to_atom_for_display ()

GdkAtom
gdk_x11_xatom_to_atom_for_display (GdkDisplay *display,
                                   Atom xatom);

Convert from an X atom for a GdkDisplay to the corresponding GdkAtom.

Since: 2.2

gdk_x11_get_xatom_by_name ()

Atom
gdk_x11_get_xatom_by_name (const gchar *atom_name);

Returns the X atom for GDK’s default display corresponding to atom_name . This function caches the result, so if called repeatedly it is much faster than XInternAtom(), which is a round trip to the server each time.

gdk_x11_get_xatom_by_name_for_display ()

Atom
gdk_x11_get_xatom_by_name_for_display (GdkDisplay *display,
                                       const gchar *atom_name);

Returns the X atom for a GdkDisplay corresponding to atom_name . This function caches the result, so if called repeatedly it is much faster than XInternAtom(), which is a round trip to the server each time.

Since: 2.2

gdk_x11_get_xatom_name ()

const gchar *
gdk_x11_get_xatom_name (Atom xatom);

Returns the name of an X atom for GDK’s default display. This function is meant mainly for debugging, so for convenience, unlike XAtomName() and gdk_atom_name(), the result doesn’t need to be freed. Also, this function will never return NULL, even if xatom is invalid.

gdk_x11_get_xatom_name_for_display ()

const gchar *
gdk_x11_get_xatom_name_for_display (GdkDisplay *display,
                                    Atom xatom);

Returns the name of an X atom for its display. This function is meant mainly for debugging, so for convenience, unlike XAtomName() and gdk_atom_name(), the result doesn’t need to be freed.

Since: 2.2

gdk_x11_set_sm_client_id ()

void
gdk_x11_set_sm_client_id (const gchar *sm_client_id);

Sets the SM_CLIENT_ID property on the application’s leader window so that the window manager can save the application’s state using the X11R6 ICCCM session management protocol.

See the X Session Management Library documentation for more information on session management and the Inter-Client Communication Conventions Manual

Since: 2.24

gdk_x11_display_text_property_to_text_list ()

gint
gdk_x11_display_text_property_to_text_list
                               (GdkDisplay *display,
                                GdkAtom encoding,
                                gint format,
                                const guchar *text,
                                gint length,
                                gchar ***list);

Convert a text string from the encoding as it is stored in a property into an array of strings in the encoding of the current locale. (The elements of the array represent the nul-separated elements of the original text string.)

Since: 2.24

gdk_x11_free_text_list ()

void
gdk_x11_free_text_list (gchar **list);

Frees the array of strings created by gdk_x11_display_text_property_to_text_list().

Since: 2.24

gdk_x11_display_string_to_compound_text ()

gint
gdk_x11_display_string_to_compound_text
                               (GdkDisplay *display,
                                const gchar *str,
                                GdkAtom *encoding,
                                gint *format,
                                guchar **ctext,
                                gint *length);

Convert a string from the encoding of the current locale into a form suitable for storing in a window property.

Since: 2.24

gdk_x11_display_utf8_to_compound_text ()

gboolean
gdk_x11_display_utf8_to_compound_text (GdkDisplay *display,
                                       const gchar *str,
                                       GdkAtom *encoding,
                                       gint *format,
                                       guchar **ctext,
                                       gint *length);

Converts from UTF-8 to compound text.

Since: 2.24

gdk_x11_free_compound_text ()

void
gdk_x11_free_compound_text (guchar *ctext);

Frees the data returned from gdk_x11_display_string_to_compound_text().

Since: 2.24