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GObject.Object
parent-child marker Gdk.DisplayManager

Class Gdk.DisplayManager

Import line: Gdk = imports.gi.Gdk;
GIR File: Gdk-3.0.gir
C documentation: GdkDisplayManager
Class : DisplayManager
Extends: GObject.Object
The purpose of the GdkDisplayManager singleton object is to offer
notification when displays appear or disappear or the default display
changes.
You can use gdk_display_manager_get() to obtain the GdkDisplayManager
singleton, but that should be rarely necessary. Typically, initializing
GTK+ opens a display that you can work with without ever accessing the
GdkDisplayManager.
The GDK library can be built with support for multiple backends.
The GdkDisplayManager object determines which backend is used
at runtime.
When writing backend-specific code that is supposed to work with
multiple GDK backends, you have to consider both compile time and
runtime. At compile time, use the GDK_WINDOWING_X11, GDK_WINDOWING_WIN32
macros, etc. to find out which backends are present in the GDK library
you are building your application against. At runtime, use type-check
macros like GDK_IS_X11_DISPLAY() to find out which backend is in use:

Backend-specific code

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");
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Documentation generated by Introspection Doc Generator Loosely Based on JsDoc Toolkit on Sat Apr 16 2011 17:10:55 GMT+0800 (HKT)