constants OnMouseWheelEnum
The OnMouseWheelEnum type specifies the actions the control can perform when the user rolls the mouse wheel. The OnMouseWheel property specifies what action the control performs when user rolls the mouse wheel. The OnMouseWheelEnum type supports the following values:

NameValueDescription
exMouseWheelNothing0 Nothing happens while user rolls the mouse wheel.
exMouseWheelZoom1 The face from the cursor is zoomed.
exMouseWheelScroll4 The content of the face from the cursor is scrolled.