Invoked whenever an unhandled Keyboard.LostKeyboardFocus attached routed event reaches an element derived from this class in its route. Implement this method to add class handling for this event.
Assembly: PresentationFramework (in PresentationFramework.dll)
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.