Returns an alternative clipping geometry that represents the region that would be clipped if ClipToBounds were set to true.
Assembly: PresentationCore (in PresentationCore.dll)
The default implementation will return a legitimate value, but does not use the layoutSlotSize parameter in its calculations. Instead it uses the value of RenderSize.
This method is substantially overridden by the immediately derived FrameworkElement class, and the FrameworkElement override produces a more sophisticated behavior for general WPF framework-level elements. For details, see FrameworkElement.GetLayoutClip.