UIElement.IsMouseCaptureWithin Property
Gets a value that determines whether mouse capture is held by this element or by child elements in its visual tree. This is a dependency property.
Assembly: PresentationCore (in PresentationCore.dll)
Property Value
Type: System.Booleantrue if this element or a contained element has mouse capture; otherwise, false.
.NET Framework
Available since 3.0
Available since 3.0