Posted by gouessej on Sep 17, 2012; 10:45am
URL: https://forum.jogamp.org/Make-screenshot-of-work-display-tp4026085p4026198.html

Maybe you can do that with a maximized transparent window.

You can use Screencast-O-Matic or Have2Chat Screencast, the latter is entirely written in Java, its author is a nice guy, you should contact him if you need some help. Good luck.