Posted by Wade Walker on Jul 04, 2013; 4:37pm
URL: https://forum.jogamp.org/How-to-overlay-SWT-Widgets-over-GLCanvas-tp4029507p4029520.html

Hi Tuan,

As I mentioned on my blog, I haven't tried floating a button over a GL canvas (either Eclipse's canvas or JogAmp's canvas) so I can't say whether it works properly or not. Supposedly later children are higher in the z order, so you might try just putting the button in after the GL canvas instead of before. Or you could put code in your GL canvas repaint that dirties the button, so it'll get painted afterwards.