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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN" "http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
><head><title>gluCheckExtension</title><link rel="stylesheet" href="style.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.59.1"/><link rel="home" href="index.xml" title="PyOpenGL 2.0.1.07 Man Pages"/><link rel="up" href="reference-GLU.xml" title="GLU"/><link rel="previous" href="gluBuild3DMipmaps.3G.xml" title="gluBuild3DMipmaps"/><link rel="next" href="gluCylinder.3G.xml" title="gluCylinder"/></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">gluCheckExtension</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="gluBuild3DMipmaps.3G.xml">Prev</a></td><th width="60%" align="center">GLU</th><td width="20%" align="right"><a accesskey="n" href="gluCylinder.3G.xml">Next</a></td></tr></table><hr/></div><div class="refentry" lang="en"><a name="gluCheckExtension.3G"/><div class="titlepage"/><div class="refnamediv"><a name="gluCheckExtension.3G-name"/><h2>Name</h2><p>gluCheckExtension — determines if an extension name is supported</p></div><div class="refsynopsisdiv"><a name="gluCheckExtension.3G-c_spec"/><h2>C Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>GLboolean<tt>gluCheckExtension</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code>constGLubyte*<i><tt>extName</tt></i>, constGLubyte*<i><tt>extString</tt></i>);</code></td></tr></table></div><div class="refsynopsisdiv"><a name="gluCheckExtension.3G-python_spec"/><h2>Python Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code><tt>gluCheckExtension</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code><i><tt>extName</tt></i>, <i><tt>extString</tt></i>) →<i><tt>boolean</tt></i></code></td></tr></table></div><div class="refsect1" lang="en"><a name="gluCheckExtension.3G-parameters"/><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><i><tt>extName</tt></i></span></dt><dd>
Specifies an extension name.
</dd><dt><span class="term"><i><tt>extString</tt></i></span></dt><dd>
Specifies a space-separated list of extension names supported.
</dd></dl></div></div><div class="refsect1" lang="en"><a name="gluCheckExtension.3G-description"/><h2>Description</h2><p>
<tt>gluCheckExtension</tt> returns <tt>GL_TRUE</tt> if <i><tt>extName</tt></i> is
supported otherwise <tt>GL_FALSE</tt> is returned.
</p><p>
This is used to check for the presence for OpenGL, GLU or GLX extension names by passing the extension strings returned
by <a href="glGetString.3G.xml"><tt>glGetString</tt></a>, <a href="gluGetString.3G.xml"><tt>gluGetString</tt></a>,
<tt>glXGetClientString</tt>, <tt>glXQueryExtensionsString</tt>, or <tt>glXQueryServerString</tt>, respectively, as <i><tt>extString</tt></i>.
</p></div><div class="refsect1" lang="en"><a name="gluCheckExtension.3G-notes"/><h2>Notes</h2><p>
Cases where one extension name is a substring of another are correctly handled.
</p><p>
There may or may not be leading or trailing blanks in <i><tt>extString</tt></i>.
</p><p>
Extension names should not contain embedded spaces.
</p><p>
All strings are <tt>NULL</tt>-terminated.
</p></div><div class="refsect1" lang="en"><a name="gluCheckExtension.3G-see_also"/><h2>See Also</h2><p>
<span class="simplelist"><a href="glGetString.3G.xml">glGetString</a>, <a href="gluGetString.3G.xml">gluGetString</a>, <a href="glXGetClientString.3G.xml">glXGetClientString</a>, <a href="glXQueryExtensionsString.3G.xml">glXQueryExtensionsString</a>, <a href="glXQueryServerString.3G.xml">glXQueryServerString</a></span>
</p></div></div><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="gluBuild3DMipmaps.3G.xml">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="reference-GLU.xml">Up</a></td><td width="40%" align="right"><a accesskey="n" href="gluCylinder.3G.xml">Next</a></td></tr><tr><td width="40%" align="left" valign="top">gluBuild3DMipmaps</td><td width="20%" align="center"><a accesskey="h" href="index.xml">Home</a></td><td width="40%" align="right" valign="top">gluCylinder</td></tr></table></div></body></html>
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