Bar Item Automation Peer. Is Offscreen Core Method
protected: override bool IsOffscreenCore();
protected override bool IsOffscreenCore ();
override this.IsOffscreenCore : unit -> bool
Protected Overrides Function IsOffscreenCore () As Boolean
true if the element is not on the screen; otherwise,
This method does not indicate whether the element is visible. In some circumstances, the element can be on the screen but still not be visible (for example, an element that is obscured by other elements).