Widget handler: OnMouseWheel

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Reference 

Widget handlers < OnMouseWheel

Description[edit]

Called when mousewheel is spun while the mouse pointer is over the frame. If a frame does not have an OnMouseWheel handler, the event is passed on to underlying frames.

Arguments[edit]

arg1 - Number indicating the direction the wheel is spinning
  • 1 for spinning up
  • -1 for spinning down
(i.e. you will want to use (-arg1) for offsetting the position in a list view)


Note[edit]

If a frame did not previously have an <OnMouseWheel> tag, which will always be the case for CreateFrame()ed frames, you need to do Frame:EnableMouseWheel(1) on it in order to receive this event.