Gets or sets an opacity mask, as a
System.Windows.Media.Brush implementation that is applied to any alpha-channel masking for the rendered content of this element. This is a dependency property.
シンタックス
'宣言
Public Property OpacityMask As Brush
public Brush OpacityMask {get; set;}
プロパティ値
The brush to use for opacity masking.
参照