EVENT

EVENT_NONE	None.
EVENT_FORCEREDRAW	Force a complete redraw.
EVENT_ANIMATE	Animate document.
EVENT_NOEXPRESSION	Do not execute expressions.
EVENT_GLHACK	Private.
EVENT_CAMERAEXPRESSION	If set(and not EVENT_NOEXPRESSION) the event will only update camera dependent expressions (for faster speed).
EVENT_ENQUEUE_REDRAW	New in version R17.032: | Do not stop the current redraw if DrawViews() is running at the moment. | In that case enqueue the redraw after the current draw is done.