upstream-doc/man2/xhtml/gluCheckExtension.xml

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   3 <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="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.
  10         </p><p>
  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
  18             correctly handled.
  19         </p><p>
  20             There may or may not be leading or trailing blanks in <em class="parameter"><code>extString</code></em>.
  21         </p><p>
  22             Extension names should not contain embedded spaces.
  23         </p><p>
  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>