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renderer=
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"Content-Type" content=
"text/html; charset=UTF-8" /><title>gluCheckExtension
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.73.2" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"gluCheckExtension"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>gluCheckExtension — determines if an extension name is supported
</p></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">GLboolean
<b class=
"fsfunc">gluCheckExtension
</b>(
</code></td><td>const GLubyte *
</td><td><var class=
"pdparam">extName
</var>,
</td></tr><tr><td> </td><td>const GLubyte *
</td><td><var class=
"pdparam">extString
</var><code>)
</code>;
</td></tr></table></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"parameters"></a><h2>Parameters
</h2><div class=
"variablelist"><dl><dt><span class=
"term"><em class=
"parameter"><code>extName
</code></em></span></dt><dd><p>
4 Specifies an extension name.
5 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>extString
</code></em></span></dt><dd><p>
6 Specifies a space-separated list of extension names supported.
7 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
8 <code class=
"function">gluCheckExtension
</code> returns
<code class=
"constant">GLU_TRUE
</code> if
<em class=
"parameter"><code>extName
</code></em> is supported otherwise
9 <code class=
"constant">GLU_FALSE
</code> is returned.
11 This is used to check for the presence for OpenGL, GLU, or GLX extension names
12 by passing the extension strings returned by
<a class=
"citerefentry" href=
"glGetString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetString
</span></span></a>,
13 <a class=
"citerefentry" href=
"gluGetString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">gluGetString
</span></span></a>,
<a class=
"citerefentry" href=
"glXGetClientString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXGetClientString
</span></span></a>,
14 <a class=
"citerefentry" href=
"glXQueryExtensionsString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXQueryExtensionsString
</span></span></a>, or
<a class=
"citerefentry" href=
"glXQueryServerString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXQueryServerString
</span></span></a>,
15 respectively, as
<em class=
"parameter"><code>extString
</code></em>.
16 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"notes"></a><h2>Notes
</h2><p>
17 Cases where one extension name is a substring of another are
20 There may or may not be leading or trailing blanks in
<em class=
"parameter"><code>extString
</code></em>.
22 Extension names should not contain embedded spaces.
24 All strings are null-terminated.
25 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
26 <a class=
"citerefentry" href=
"gluGetString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">gluGetString
</span></span></a>,
27 <a class=
"citerefentry" href=
"glGetString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetString
</span></span></a>,
28 <a class=
"citerefentry" href=
"glXGetClientString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXGetClientString
</span></span></a>,
29 <a class=
"citerefentry" href=
"glXQueryExtensionsString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXQueryExtensionsString
</span></span></a>,
30 <a class=
"citerefentry" href=
"glXQueryServerString.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXQueryServerString
</span></span></a>
31 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
32 Copyright
<span class=
"trademark"></span>©
1991-
2006
33 Silicon Graphics, Inc. This document is licensed under the SGI
34 Free Software B License. For details, see
35 <a class=
"ulink" href=
"http://oss.sgi.com/projects/FreeB/" target=
"_top">http://oss.sgi.com/projects/FreeB/
</a>.
36 </p></div></div></body></html>