- mouse-wheel-event-direction eventprocedure
- set! (mouse-wheel-event-direction event) valsetter
- mouse-wheel-event-direction-set! event valsetter
Get or set the event's "direction" field, as one of the following symbols:
- 'normal
- "Normal" scrolling mode.
- 'flipped
- "Flipped" or "natural" scrolling mode. You can multiple the "x" and "y" field values by -1 to get the "normal" values.
Requires SDL 2.0.4 or higher, and sdl2 egg 0.2.0 or higher.