Creates a modifiable clone of this ThicknessAnimationUsingKeyFrames object, making deep copies of this object's current values. Resource references, data bindings, and animations are not copied, but their current values are.
Assembly: PresentationFramework (in PresentationFramework.dll)
Return ValueType: System.Windows.Media.Animation.ThicknessAnimationUsingKeyFrames
A modifiable clone of the current object. The cloned object's IsFrozen property will be false even if the source's IsFrozen property was true.