This event occurs whenever a mouse wheel is clicked.

property OnMouseWheelDown: TVFMouseWheelDownEvent Type;

__property TVFMouseWheelDownEvent OnMouseWheelDown;

event TVFMouseWheelDownEvent Type OnMouseWheelDown;

Event OnMouseWheelDown As TVFMouseWheelDownEvent

OnMouseWheelDown

__property TVFMouseWheelDownEvent OnMouseWheelDown;

OnMouseWheelDown

published OnMouseWheelDown;