Enforces that the calling thread has access to this DispatcherObject.
Assembly: WindowsBase (in WindowsBase.dll)
Any thread can check to see whether it has access to this DispatcherObject.
The difference between CheckAccess and is that CheckAccess returns a Boolean that specifies whether the calling thread has access to this DispatcherObject and throws an exception if the calling thread does not have access to the this DispatcherObject.
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