Mouse button number to listen to, or 0 to listen for any button.
The data that is offered by drag operations from this source.
Whether the gesture is exclusive.
Exclusive gestures only listen to pointer and pointer emulated events.
The number of touch points that trigger recognition on this gesture.
The name for this controller, typically used for debugging purposes.
The limit for which events this controller will handle.
The propagation phase at which this controller will handle events.
Whether the gesture handles only touch events.
The actions that are supported by drag operations from the source.
Note that you must handle the [signal
Gtk.DragSource::drag-end] signal if the actions include %GDK_ACTION_MOVE.