Gets a value that declares whether the property is being animated.
Assembly: PresentationFramework (in PresentationFramework.dll)
For any property that is currently being animated, the source reported by BaseValueSource is not immediately relevant, because the animation operates at higher dependency property precedence than the base value. For more information about precedence and animations, see Dependency Property Value Precedence.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.