gdk-sharp 2.12.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Describes a change of keyboard focus. Gdk.Event Property System.Boolean True if the window has gained the keyboard focus, false if it has lost the focus. True if the window has gained the keyboard focus, false if it has lost the focus. None. Constructor Internal constructor. raw unmanaged pointer. None.