Sets the event propagation limit on the event controller.
If the limit is set to %GTK_LIMIT_SAME_NATIVE, the controller won't handle events that are targeted at widgets on a different surface, such as popovers.
the propagation limit
See Implementation
Sets the event propagation limit on the event controller.
If the limit is set to %GTK_LIMIT_SAME_NATIVE, the controller won't handle events that are targeted at widgets on a different surface, such as popovers.