UIElement.InputHitTest Method (Point)
Returns the input element within the current element that is at the specified coordinates, relative to the current element's origin.
Assembly: PresentationCore (in PresentationCore.dll)
IInputElement is returned as the return type, because that type is a common interface for both UIElement and ContentElement. You can then cast the return type appropriately, or use the interface instance for certain members that are defined by the IInputElement interface.
This method typically is not called from your application code. Calling this method is only appropriate if you intend to re-implement a substantial amount of the low level input features that are already present, such as recreating mouse device logic.
Available since 3.0