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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> |