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- /*! \page opengl-overlay-example.html
-
- \ingroup opengl-examples
- \title OpenGL Overlay Example
-
- This example demonstrates how to use OpenGL overlays with the Qt OpenGL
- Extension. It features a QGLWidget with a relatively expensive redrawing
- operation, and rubber-band drawing in the overlay plane. Using the
- overlay has the advantage that the rubber-band may be drawn and erased
- without damaging the image in the main plane, so costly redraws are
- avoided.
-
- See \c{$QTDIR/examples/opengl/overlay} for the source code.
-
- */
-
-