Gets or sets the opacity of the ContainerVisual, based on 0=transparent, 1=opaque.
Assembly: PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Property ValueType: System.Double
A value from 0 through 1 that specifies a range from fully transparent to fully opaque. A value of 0 indicates that the ContainerVisual is completely transparent, while a value of 1 indicates that the ContainerVisual is completely opaque. A value 0.5 indicates 50 percent opaque, a value of 0.725 indicates 72.5 percent opaque, and so on. Values less than 0 are treated as 0, while values 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