Hi, sorry for the delay ... At this point I don't know if there is a solution to your use case, maybe others of us could have some idea.
As a general idea, could you try to traverse all components of your container (should be possible using the iterator() method), and for any component check coordinates to see if they match with yours ? As a sample look at: SheetSlideDirectionWindow under examples. Then look at Component api ... Keep us updated. Bye, Sandro
