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<td >Qt 5.9</td><td ><a href="qtopengl-index.html">Qt OpenGL</a></td><td ><a href="qtopengl-module.html">C++ Classes</a></td><td >QGLContext</td></tr></table><table class="buildversion"><tr>
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<h1 class="title">Obsolete Members for QGLContext</h1>
<p><b>The following members of class <a href="qglcontext.html">QGLContext</a> are obsolete.</b> They are provided to keep old source code working. We strongly advise against using them in new code.</p>
<h2>Public Functions</h2>
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<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code></td><td class="memItemRight bottomAlign"><b><a href="qglcontext-obsolete.html#QGLContext-1">QGLContext</a></b>(const QGLFormat &<i>format</i>, QPaintDevice *<i>device</i>)</td></tr>
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<h2>Member Function Documentation</h2>
<!-- $$$QGLContext$$$QGLContextconstQGLFormat&QPaintDevice* -->
<h3 class="fn" id="QGLContext-1"><a name="QGLContext-1"></a>QGLContext::<span class="name">QGLContext</span>(const <span class="type"><a href="qglformat.html">QGLFormat</a></span> &<i>format</i>, <span class="type"><a href="../qtgui/qpaintdevice.html">QPaintDevice</a></span> *<i>device</i>)</h3>
<p>Constructs an OpenGL context for the given paint <i>device</i>, which can be a widget or a pixmap. The <i>format</i> specifies several display options for the context.</p>
<p>If the underlying OpenGL/Window system cannot satisfy all the features requested in <i>format</i>, the nearest subset of features will be used. After creation, the <a href="qglcontext.html#format">format</a>() method will return the actual format obtained.</p>
<p>Note that after a <a href="qglcontext.html">QGLContext</a> object has been constructed, <a href="qglcontext.html#create">create</a>() must be called explicitly to create the actual OpenGL context. The context will be <a href="qglcontext.html#isValid">invalid</a> if it was not possible to obtain a GL context at all.</p>
<!-- @@@QGLContext -->
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