VisualTipBalloonRenderer.OnCreateMaskRegion Method

[Visual Basic]
Overrides Protected Function OnCreateMaskRegion( _
ByVal tip As VisualTip, _
ByVal layout As VisualTipLayout _
) As Region

[C#]
protected override Region OnCreateMaskRegion(
VisualTip tip,
VisualTipLayout layout
);