I don't have a complete example, but you should be able to simply drop
ros::spinOnce() in your main loop. See the spinning
section<http://www.ros.org/wiki/roscpp/Overview/Callbacks%20and%20Spinning>of
the roscpp overview.

Cheers,
Patrick

On Wed, Dec 1, 2010 at 4:07 AM, koen buys <koen.buys@mech.kuleuven.be>wrote:

> Does anybody have an example how I can combine the ROS spin() function
> with the callback routines of OpenGL?
> I have ROS callback routines on messages and I want to send a
> generated OpenGL image back in each of those callback routines.
>
> Greetings,
>
> Koen
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