gdk.display_manager

Module for [DisplayManager] class

class DisplayManager DisplayManagerGidBuilder DisplayManagerGidBuilderImpl

Types 3

classDisplayManager : gobject.object.ObjectWrap

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.DisplayManager.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 ## {#backend-specific}

#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");

Methods
GType _getGType()
GType _gType() @property
DisplayManager self()Returns `this`, for use in `with` statements.
DisplayManagerGidBuilder builder()Get builder for [gdk.display_manager.DisplayManager] Returns: New builder object
gdk.display.Display defaultDisplay() @property
void defaultDisplay(gdk.display.Display propval) @property
gdk.display_manager.DisplayManager get()Gets the singleton #GdkDisplayManager object.
gdk.display.Display getDefaultDisplay()Gets the default #GdkDisplay. Returns: a #GdkDisplay, or null if there is no default display.
gdk.display.Display[] listDisplays()List all currently open displays. Returns: a newly allocated #GSList of #GdkDisplay objects. Free with [glib.slist.SList.free] when you are done with it.
gdk.display.Display openDisplay(string name)Opens a display.
void setDefaultDisplay(gdk.display.Display display)Sets display as the default display.
gulong connectDisplayOpened(T)(T callback, Flag!"After" after = No.After) if (isCallable!T && is(ReturnType!T == void) && (Parameters!T.length < 1 || (ParameterStorageClassTuple!T[0] == ParameterStorageClass.none && is(Parameters!T[0] : gdk.display.Display))) && (Parameters!T.length < 2 || (ParameterStorageClassTuple!T[1] == ParameterStorageClass.none && is(Parameters!T[1] : gdk.display_manager.DisplayManager))) && Parameters!T.length < 3)Connect to `DisplayOpened` signal.
Constructors
this(void * ptr, Flag!"Take" take)
classDisplayManagerGidBuilderImpl(T) : gobject.object.ObjectWrapGidBuilderImpl!T
Methods
T defaultDisplay(gdk.display.Display propval)
classDisplayManagerGidBuilder : DisplayManagerGidBuilderImpl!DisplayManagerGidBuilder

Fluent builder for [gdk.display_manager.DisplayManager]

Methods
DisplayManager build()