Gets a value indicating whether this element has keyboard focus. This is a dependency property.
Assembly: PresentationCore (in PresentationCore.dll)
Metadata properties set to true
Changes to the determined value of this property may be accompanied by focus-related events.
and IsKeyboardFocusWithin are commonly used within class event handlers for other input-related events, for instance to determine whether the element already has keyboard focus, or to make determinations when mouse events and keyboard events occur in conjunction.
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
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.