reserved for future use
event button
number of button presses within the default time and radius
the device that originated the event. If you want the physical device the event originated from, use clutter_event_get_source_device()
event flags
button modifiers
event source actor
event source stage
event time
event type
event X coordinate, relative to the stage
event Y coordinate, relative to the stage
Button event.
The event coordinates are relative to the stage that received the event, and can be transformed into actor-relative coordinates by using clutter_actor_transform_stage_point().