How to detect when a JInternalFrame becomes visible ?

Hi guys,

I'd like to know if there's a way to detect when a JInternalFrame becomes visibile, i.e it's displayed on a JDesktop. I was thinking about some specific Listener but no luck in searching for it.
Any hint ?

Regards.

ComponentListener for visible
InternalFrameListener for Active/Iconified etc

Thanks, man. I'll try it immediately.

Regards.