Checks whether the bitmap source content is from a known site of origin. This method is used to make sure that pixel copying operations are safe.
Assembly: PresentationCore (in PresentationCore.dll)
This method only succeeds if it is passed a Uri that is from a site of origin or that is defined in a pack:. In all other conditions, this method will fail.
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