# File vtk/gtk/GtkVTKRenderWindowInteractor.rb, line 139
    def OnConfigure(self, wid, event=nil)
        sz = self._RenderWindow.GetSize
        if (event.width != sz[0]) || (event.height != sz[1])
            self._Iren.SetSize(event.width, event.height)
            self._Iren.ConfigureEvent
        end
        return gtk.TRUE
    end