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+<title>OpenGL Overlay Example</title>
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+<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>OpenGL Overlay Example</h1>
+
+
+<p>
+This example demonstrates how to use OpenGL overlays with the Qt OpenGL
+Extension. It features a <a href="qglwidget.html">QGLWidget</a> 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.
+<p> See <tt>$QTDIR/examples/opengl/overlay</tt> for the source code.
+<p> <p>See also <a href="opengl-examples.html">OpenGL Examples</a>.
+
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+<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
+<td align=right><div align=right>Qt 3.3.8</div>
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