Returns the X cursor belonging to a #GdkCursor. a #GdkCursor. Returns the display of a #GdkCursor. a #GdkCursor. Converts a @gpointer back to an XID that was previously converted using GDK_XID_TO_POINTER(). pointer to extract an XID from Obtains the Xlib window id of the root window of the current screen. Returns the display of a X11 #GdkScreen. a #GdkScreen Returns the index of a X11 #GdkScreen. a #GdkScreen Returns the screen of a X11 #GdkScreen. a #GdkScreen Returns the display of a #GdkWindow. a #GdkWindow. Returns the X window belonging to a #GdkWindow. a #GdkWindow. Returns the X cursor belonging to a #GdkCursor. an Xlib Cursor. a #GdkCursor. Returns the display of a #GdkCursor. an Xlib Display*. a #GdkCursor. Retrieves the version of the GLX implementation. %TRUE if GLX is available a #GdkDisplay return location for the GLX major version return location for the GLX minor version 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](http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt) for definitions of the message types and keys that can be used. a #GdkDisplay startup notification message type ("new", "change", or "remove") a list of key/value pairs (as strings), terminated by a %NULL key. (A %NULL value for a key will cause that key to be skipped in the output.) 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. X error code or 0 on success the 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. the 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. a #GdkDisplay Gets the startup notification ID for a display. the startup notification ID for @display a #GdkDisplay 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(). the timestamp of the last user interaction a #GdkDisplay Returns the X display of a #GdkDisplay. an X display a #GdkDisplay 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. a #GdkDisplay 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). a #GdkDisplay the name of the cursor theme to use, or %NULL to unset a previously set value the cursor size to use, or 0 to keep the previous size 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()). a #GdkDisplay the startup notification ID (must be valid utf8) 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. the display The new scale value Convert a string from the encoding of the current locale into a form suitable for storing in a window property. 0 upon success, non-zero upon failure the #GdkDisplay where the encoding is defined a nul-terminated string location to store the encoding atom (to be used as the type for the property) location to store the format of the property location to store newly allocated data for the property the length of @ctext, in bytes 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.) the number of strings stored in list, or 0, if the conversion failed The #GdkDisplay where the encoding is defined an atom representing the encoding. The most common values for this are STRING, or COMPOUND_TEXT. This is value used as the type for the property the format of the property The text data The number of items to transform location to store an array of strings in the encoding of the current locale. This array should be freed using gdk_free_text_list(). Ungrab @display after it has been grabbed with gdk_x11_display_grab(). a #GdkDisplay Converts from UTF-8 to compound text. %TRUE if the conversion succeeded, otherwise %FALSE a #GdkDisplay a UTF-8 string location to store resulting encoding location to store format of the result location to store the data of the result location to store the length of the data stored in @ctext 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. the index of the active keyboard group for the event a #GdkX11Keymap raw state returned from X 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. %TRUE if the hardware keycode is a modifier key a #GdkX11Keymap the hardware keycode from a key event Returns the current workspace for @screen when running under a window manager that supports multiple workspaces, as described in the [Extended Window Manager Hints](http://www.freedesktop.org/Standards/wm-spec) specification. the current workspace, or 0 if workspaces are not supported a #GdkScreen 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. the XID of the monitor a #GdkScreen number of the monitor, between 0 and gdk_screen_get_n_monitors (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](http://www.freedesktop.org/Standards/wm-spec) specification. the number of workspaces, or 0 if workspaces are not supported a #GdkScreen Returns the index of a #GdkScreen. the position of @screen among the screens of its display a #GdkScreen Returns the name of the window manager for @screen. the name of the window manager screen @screen, or "unknown" if the window manager is unknown. The string is owned by GDK and should not be freed. a #GdkScreen Returns the screen of a #GdkScreen. an Xlib Screen* a #GdkScreen Looks up the #GdkVisual for a particular screen and X Visual ID. the #GdkVisual (owned by the screen object), or %NULL if the visual ID wasn’t found. a #GdkScreen. an X Visual ID. 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](http://www.freedesktop.org/Standards/wm-spec) 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. %TRUE if the window manager supports @property the relevant #GdkScreen. a property atom. Returns the X visual belonging to a #GdkVisual. an Xlib Visual*. a #GdkVisual. 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. a #GdkWindow wrapper for the native window, or %NULL if the window has been destroyed. The wrapper will be newly created, if one doesn’t exist already. the #GdkDisplay where the window handle comes from. an Xlib Window Looks up the #GdkWindow that wraps the given native window handle. the #GdkWindow wrapper for the native window, or %NULL if there is none. the #GdkDisplay corresponding to the window handle an Xlib Window Gets the number of the workspace @window is on. the current workspace of @window a #GdkWindow Returns the X resource (window) belonging to a #GdkWindow. the ID of @drawable’s X resource. a native #GdkWindow. 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](http://www.freedesktop.org/Standards/wm-spec) specification. Will not do anything if the window is already on all workspaces. a #GdkWindow 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](http://www.freedesktop.org/Standards/wm-spec) specification. a #GdkWindow the number of the workspace to move the window to This is the same as gdk_window_set_shadow_width() but it only works on GdkX11Window. Use gdk_window_set_shadow_width() instead. a #GdkWindow The left extent The right extent The top extent The bottom extent 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. a native #GdkWindow whether frame-synchronization should be enabled 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. a #GdkWindow whether to hide the titlebar when maximized 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. a #GdkWindow the theme variant to export 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. A toplevel #GdkWindow An XServer timestamp to which the property should be set 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. a #GdkWindow Property name, will be interned as an X atom Property value, or %NULL to delete 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. XID to stuff into the pointer Converts from a #GdkAtom to the X atom for the default GDK display with the same string value. the X atom corresponding to @atom. A #GdkAtom 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. the X atom corresponding to @atom, or %None A #GdkDisplay A #GdkAtom, or %GDK_NONE Returns the device ID as seen by XInput2. > If gdk_disable_multidevice() has been called, this function > will respectively return 2/3 for the core pointer and keyboard, > (matching the IDs for the Virtual Core Pointer and Keyboard in > XInput 2), but calling this function on any slave devices (i.e. > those managed via XInput 1.x), will return 0. the XInput2 device ID. a #GdkDevice Returns the #GdkDevice that wraps the given device ID. The #GdkDevice wrapping the device ID, or %NULL if the given ID doesn’t currently represent a device. a #GdkDeviceManager a device ID, as understood by the XInput2 protocol Frees the data returned from gdk_x11_display_string_to_compound_text(). The pointer stored in @ctext from a call to gdk_x11_display_string_to_compound_text(). Frees the array of strings created by gdk_x11_display_text_property_to_text_list(). the value stored in the @list parameter by a call to gdk_x11_display_text_property_to_text_list(). Gets the root window of the default screen (see gdk_x11_get_default_screen()). an Xlib Window. Gets the default GTK+ screen number. returns the screen number specified by the --display command line option or the DISPLAY environment variable when gdk_init() calls XOpenDisplay(). Gets the default GTK+ display. the Xlib Display* for the display specified in the `--display` command line option or the `DISPLAY` environment variable. 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. Don't use this function Routine to get the current X server time stamp. the time stamp. a #GdkWindow, used for communication with the server. The window must have GDK_PROPERTY_CHANGE_MASK in its events mask or a hang will result. 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. a X atom for GDK’s default display. a string 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. a X atom for a #GdkDisplay a #GdkDisplay a string 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. name of the X atom; this string is owned by GTK+, so it shouldn’t be modifed or freed. an X atom for GDK’s default display 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. name of the X atom; this string is owned by GDK, so it shouldn’t be modifed or freed. the #GdkDisplay where @xatom is defined an X atom 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. Find the #GdkDisplay corresponding to @xdisplay, if any exists. the #GdkDisplay, if found, otherwise %NULL. a pointer to an X Display 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. a #GdkDisplay first event type code to register number of event type codes to register 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 the client id assigned by the session manager when the connection was opened, or %NULL to remove the property. Ungrab the default display after it has been grabbed with gdk_x11_grab_server(). Convert from an X atom for the default display to the corresponding #GdkAtom. the corresponding G#dkAtom. an X atom for the default GDK display Convert from an X atom for a #GdkDisplay to the corresponding #GdkAtom. the corresponding #GdkAtom. A #GdkDisplay an X atom The functions in this section are specific to the GDK X11 backend. To use them, you need to include the `<gdk/gdkx.h>` header and use the X11-specific pkg-config files to build your application (either `gdk-x11-3.0` or `gtk+-x11-3.0`). To make your code compile with other GDK backends, guard backend-specific calls by an ifdef as follows. Since GDK may be built with multiple backends, you should also check for the backend that is in use (e.g. by using the GDK_IS_X11_DISPLAY() macro). |[ #ifdef GDK_WINDOWING_X11 if (GDK_IS_X11_DISPLAY (display)) { // make X11-specific calls here } else #endif #ifdef GDK_WINDOWING_QUARTZ if (GDK_IS_QUARTZ_DISPLAY (display)) { // make Quartz-specific calls here } else #endif g_error ("Unsupported GDK backend"); ]|