One more question:

what about buttons and sliders: Is there a way for a pure C++ app to use them?
- I don't see how I should pass a pointer to a function to them
- For sliders, I don't see how I could read the value

LazyDog, you seem to be using a button... if I tried this code, but it wouldn't display. Did you really get this work?

Thanks for all help
Jonas