Assembly: WindowsBase (in WindowsBase.dll)
overrides should add a handler to the provided source. The handler is declared by the manager itself. The class handler should not be public, and it should only be called in response to the event being managed. The class handler should call the DeliverEvent method or the DeliverEventToList method appropriately.
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.