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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
<refentry id="glXQueryExtensionsString">
<refmeta>
<refmetainfo>
<copyright>
<year>1991-2006</year>
<holder>Silicon Graphics, Inc.</holder>
</copyright>
</refmetainfo>
<refentrytitle>glXQueryExtensionsString</refentrytitle>
<manvolnum>3G</manvolnum>
</refmeta>
<refnamediv>
<refname>glXQueryExtensionsString</refname>
<refpurpose>return list of supported extensions</refpurpose>
</refnamediv>
<refsynopsisdiv><title>C Specification</title>
<funcsynopsis>
<funcprototype>
<funcdef>const char * <function>glXQueryExtensionsString</function></funcdef>
<paramdef>Display * <parameter>dpy</parameter></paramdef>
<paramdef>int <parameter>screen</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<!-- eqn: ignoring delim $$ -->
<refsect1 id="parameters"><title>Parameters</title>
<variablelist>
<varlistentry>
<term><parameter>dpy</parameter></term>
<listitem>
<para>
Specifies the connection to the X server.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>screen</parameter></term>
<listitem>
<para>
Specifies the screen number.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="description"><title>Description</title>
<para>
<function>glXQueryExtensionsString</function> returns a pointer to a string describing
which GLX extensions are supported on the connection. The string
is null-terminated and contains a space-separated list of
extension names. (The extension names themselves never contain
spaces.) If there are no extensions to GLX, then the empty string is
returned.
</para>
</refsect1>
<refsect1 id="notes"><title>Notes</title>
<para>
<function>glXQueryExtensionsString</function> is available only if the GLX version is 1.1 or greater.
</para>
<para>
<function>glXQueryExtensionsString</function> only returns information about GLX extensions. Call
<citerefentry><refentrytitle>glGetString</refentrytitle></citerefentry> to get a list of GL extensions.
</para>
</refsect1>
<refsect1 id="seealso"><title>See Also</title>
<para>
<citerefentry><refentrytitle>glGetString</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glXQueryVersion</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glXQueryServerString</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glXGetClientString</refentrytitle></citerefentry>
</para>
</refsect1>
<refsect1 id="Copyright"><title>Copyright</title>
<para>
Copyright <trademark class="copyright"></trademark> 1991-2006
Silicon Graphics, Inc. This document is licensed under the SGI
Free Software B License. For details, see
<ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>.
</para>
</refsect1>
</refentry>