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 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.