Identifies the Keyboard.PreviewLostKeyboardFocus attached event.
Assembly: PresentationCore (in PresentationCore.dll)
Routed event identifiers are created when routed events are registered, and the result is stored as a field on the class that registers the routed event. These identifiers contain an identifying name, owner type, handler type, routing strategy, and a utility method for adding owners for the event. You often use these identifiers as parameters to event system methods, to identify a particular routed event.
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.