gdk-sharp 2.0.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Specifies the result of applying a to a native event. None. System.Enum GLib.GType(WrapperType=typeof(Gdk.FilterReturnGType)) Field Gdk.FilterReturn Event not handled, continue processing. Field Gdk.FilterReturn Native event translated into a GDK event and tored in the event structure that was passed in. Field Gdk.FilterReturn Event handled, terminate processing.