Widget.inputShapeCombineRegion

void inputShapeCombineRegion(cairo.region.Region region = null)

Sets an input shape for this widget’s GDK window. This allows for windows which react to mouse click in a nonrectangular region, see [gdk.window.Window.inputShapeCombineRegion] for more information.

Parameters

region shape to be added, or null to remove an existing shape