MouseWheel

Mouse wheel event.
[event] MouseWheel([in] int distance)
This event will be called when the user rotates the mouse wheel.

Mouse wheel events must be enabled first - see enableMouseWheelEvents.

The event will be called with one argument, distance, which is the amount the mouse wheel was rotated. By default, distance = 120 for "up" or -120 for "down".

VB6:
viewer.enableMouseWheelEvents = True ... Private Sub viewer_MouseWheel(ByVal distance As Long) ' by default, distance = 120 for "up" or -120 for "down" End Sub
MouseDown2
MouseUp2
MouseDoubleClick2
MouseMove2