[Qt-interest] Drawing text over a QGLWidget

[Alan Norton]

I would like to draw text at specified coordinates over an image 
rendered in a QGLWidget.  This is in QT4.6. 
I want the text and the image to be visible at the same time.
I tried using QPainter::drawText() in the paintGL() method, and in the 
PaintEvent() method.  In the first case, the entire GL scene was 
overwritten.  In the second case, the painting never stops, flickering 
all the time.  Surely there is a "right" way to do this, but I couldn't 
see any examples of this.  Any ideas are welcome.
Thanks,
-Alan Norton