Gets or sets the opacity of the Visual.
Assembly: PresentationCore (in PresentationCore.dll)
The value of the opacity of the Visual is expressed as a value between 0 and 1. A value of 0 indicates that the element is completely transparent, whereas a value of 1 indicates that the element is completely opaque. A value of 0.5 indicates that the element is 50 percent opaque. Values that are less than 0 are treated as 0; values that are greater than 1 are treated as 1.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2