Thank you yeye_olive..

I understand that it's possible in order to get text, but my .jar is in fact a whole GUI.

To be more specific, my QT application is a Cockpit for a home-made flight simulator, and the .jar gives a render of a PFD (http://www.albadawi.be/images/PFD%20B747-400.jpg) that is already communicating with my simulation parameters.

The objective would be to inser this java feature in part of the Qt window...

I hope I am clear enough.

Eska