gtk-sharpGtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.GLib.SignalArgsPasses data to handlers of events.ConstructorCreates a new object that encapsulates the data that has been popped from a message stack.PropertySystem.UInt32Retrieve the context identifier for the message that was removed.An integer context ID.PropertySystem.StringRetrieve the text that was 'popped'.The string removed from the top of the Statusbar's message stack