|  |  |  | GDK Reference Manual |  | 
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| Top | Description | Object Hierarchy | Properties | Signals | ||||
#include <gdk/gdk.h>
                    GdkDisplayManager;
GdkDisplayManager * gdk_display_manager_get             (void);
GdkDisplay *        gdk_display_manager_get_default_display
                                                        (GdkDisplayManager *manager);
void                gdk_display_manager_set_default_display
                                                        (GdkDisplayManager *manager,
                                                         GdkDisplay *display);
GSList *            gdk_display_manager_list_displays   (GdkDisplayManager *manager);
GdkDisplay *        gdk_display_manager_open_display    (GdkDisplayManager *manager,
                                                         const gchar *name);
The purpose of the GdkDisplayManager singleton object is to offer notification when displays appear or disappear or the default display changes.
GdkDisplayManager * gdk_display_manager_get             (void);
Gets the singleton GdkDisplayManager object.
When called for the first time, this function consults the
GDK_BACKEND to find out which of the supported
GDK backends to use (in case GDK has been compiled with multiple
backends).
| Returns : | The global GdkDisplayManager singleton; gdk_parse_args(),gdk_init(), orgdk_init_check()must have
    been called first. [transfer none] | 
Since 2.2
GdkDisplay *        gdk_display_manager_get_default_display
                                                        (GdkDisplayManager *manager);
Gets the default GdkDisplay.
| 
 | a GdkDisplayManager | 
| Returns : | a GdkDisplay, or NULLif there is no default display. [transfer none] | 
Since 2.2
void gdk_display_manager_set_default_display (GdkDisplayManager *manager,GdkDisplay *display);
Sets display as the default display.
| 
 | a GdkDisplayManager | 
| 
 | a GdkDisplay | 
Since 2.2
GSList *            gdk_display_manager_list_displays   (GdkDisplayManager *manager);
List all currently open displays.
| 
 | a GdkDisplayManager | 
| Returns : | a newly
    allocated GSList of GdkDisplay objects. Free with g_slist_free()when you are done with it. [transfer container][element-type GdkDisplay] | 
Since 2.2
GdkDisplay * gdk_display_manager_open_display (GdkDisplayManager *manager,const gchar *name);
Opens a display.
| 
 | a GdkDisplayManager | 
| 
 | the name of the display to open | 
| Returns : | a GdkDisplay, or NULLif the display could not be opened. [transfer none] | 
Since 3.0
"default-display" property"default-display" GdkDisplay* : Read / Write
The default display for GDK.
"display-opened" signalvoid user_function (GdkDisplayManager *manager, GdkDisplay *display, gpointer user_data) : Run Last
The ::display-opened signal is emitted when a display is opened.
| 
 | the object on which the signal is emitted | 
| 
 | the opened display | 
| 
 | user data set when the signal handler was connected. | 
Since 2.2