Sets the event propagation limit on the event controller.
If the limit is set to gtk.types.PropagationLimit.SameNative, the controller won't handle events that are targeted at widgets on a different surface, such as popovers.
the propagation limit
Sets the event propagation limit on the event controller.
If the limit is set to gtk.types.PropagationLimit.SameNative, the controller won't handle events that are targeted at widgets on a different surface, such as popovers.