ZoomAndPanControlMouseWheelDown - метод

Don't handle mouse wheel input from the ScrollViewer, the mouse wheel is used for zooming in and out, not for manipulating the scrollbars.

public void MouseWheelDown()

Public Sub MouseWheelDown

public:
virtual void MouseWheelDown() sealed

abstract MouseWheelDown : unit -> unit 
override MouseWheelDown : unit -> unit