reserved for future use
the device that originated the event. If you want the physical device the event originated from, use clutter_event_get_source_device()
direction of the scrolling
the axes that were stopped in this event. This field is available since 1.26
event flags
button modifiers
the source of scroll events. This field is available since 1.26
event source actor
event source stage
event time
event type
event X coordinate
event Y coordinate
Scroll wheel (or similar device) event