[ Version ( since = "1.0" ) ]
public signal void allocation_changed (ActorBox box, AllocationFlags flags)
The allocation_changed signal is emitted when the allocation property changes.
Usually, application code should just use the notifications for the allocation
property but if you want to track the allocation flags as well, for instance to know whether the absolute origin of actor
changed, then you might want use this signal instead.
| box |
a ActorBox with the new allocation |
| flags |
AllocationFlags for the allocation |