upstream-doc/man2/xhtml/glXQueryExtension.xml

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd">
   2 <!-- saved from url=(0013)about:internet -->
   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>glXQueryExtension</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glXQueryExtension"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glXQueryExtension — indicate whether the GLX extension 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">Bool <b class="fsfunc">glXQueryExtension</b>(</code></td><td>Display *  </td><td><var class="pdparam">dpy</var>, </td></tr><tr><td> </td><td>int *  </td><td><var class="pdparam">errorBase</var>, </td></tr><tr><td> </td><td>int *  </td><td><var class="pdparam">eventBase</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>dpy</code></em></span></dt><dd><p>
   4                     Specifies the connection to the X server.
   5                 </p></dd><dt><span class="term"><em class="parameter"><code>errorBase</code></em></span></dt><dd><p>
   6                     Returns the base error code of the GLX server extension.
   7                 </p></dd><dt><span class="term"><em class="parameter"><code>eventBase</code></em></span></dt><dd><p>
   8                     Returns the base event code of the GLX server extension.
   9                 </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
  10             <code class="function">glXQueryExtension</code> returns <code class="constant">True</code> if the X server of
  11             connection <em class="parameter"><code>dpy</code></em> supports the GLX extension,
  12             <code class="constant">False</code> otherwise.
  13             If <code class="constant">True</code> is returned,
  14             then <em class="parameter"><code>errorBase</code></em> and <em class="parameter"><code>eventBase</code></em> return the error base and event base of
  15             the GLX extension.  These values should be added to the constant
  16             error and event values to determine the actual event or error values.
  17             Otherwise, <em class="parameter"><code>errorBase</code></em> and <em class="parameter"><code>eventBase</code></em> are unchanged.
  18         </p><p>
  19             <em class="parameter"><code>errorBase</code></em> and <em class="parameter"><code>eventBase</code></em> do not return values if they are specified
  20             as <code class="constant">NULL</code>.
  21         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
  22             <a class="citerefentry" href="glXQueryVersion.xml"><span class="citerefentry"><span class="refentrytitle">glXQueryVersion</span></span></a>
  23         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
  24             Copyright <span class="trademark"></span>© 1991-2006
  25             Silicon Graphics, Inc. This document is licensed under the SGI
  26             Free Software B License. For details, see
  27             <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
  28         </p></div></div></body></html>