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<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>
<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glGetPointerv">
<info>
<copyright>
<year>2014</year>
<holder>Khronos Group</holder>
</copyright>
</info>
<refmeta>
<refentrytitle>glGetPointerv</refentrytitle>
<manvolnum>3G</manvolnum>
</refmeta>
<refnamediv>
<refname>glGetPointerv</refname>
<refpurpose>return the address of the specified pointer</refpurpose>
</refnamediv>
<refsynopsisdiv><title>C Specification</title>
<funcsynopsis>
<funcprototype>
<funcdef>void <function>glGetPointerv</function></funcdef>
<paramdef>GLenum <parameter>pname</parameter></paramdef>
<paramdef>GLvoid ** <parameter>params</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 xml:id="parameters"><title>Parameters</title>
<variablelist>
<varlistentry>
<term><parameter>pname</parameter></term>
<listitem>
<para>
Specifies the pointer to be returned. Must be one of
<constant>GL_DEBUG_CALLBACK_FUNCTION</constant> or
<constant>GL_DEBUG_CALLBACK_USER_PARAM</constant>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>params</parameter></term>
<listitem>
<para>
Returns the pointer value specified by <parameter>pname</parameter>.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="description"><title>Description</title>
<para>
<function>glGetPointerv</function> returns pointer information.
<parameter>pname</parameter> indicates the pointer to be
returned, and <parameter>params</parameter> is a pointer to a
location in which to place the returned data. The parameters
that may be queried include:
</para>
<variablelist>
<varlistentry>
<term><constant>GL_DEBUG_CALLBACK_FUNCTION</constant></term>
<listitem>
<para>
Returns the current callback function set with the
<parameter>callback</parameter> argument of
<citerefentry><refentrytitle>glDebugMessageCallback</refentrytitle></citerefentry>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>GL_DEBUG_CALLBACK_USER_PARAM</constant></term>
<listitem>
<para>
Returns the user parameter to the current callback
function set with the
<parameter>userParam</parameter> argument of
<citerefentry><refentrytitle>glDebugMessageCallback</refentrytitle></citerefentry>.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="notes"><title>Notes</title>
<para>
<function>glGetPointerv</function> is available in the OpenGL
core profile only if the GL version is 4.3 or later. It is
available in the compatibility profile for all GL versions, and
accepts additional queries. However, these reference pages
document only the core profile.
</para>
</refsect1>
<refsect1 xml:id="errors"><title>Errors</title>
<para>
<constant>GL_INVALID_ENUM</constant> is generated if
<parameter>pname</parameter> is not an accepted value.
</para>
</refsect1>
<refsect1 xml:id="versions"><title>Version Support</title>
<informaltable>
<tgroup cols="13" align="left">
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apifunchead.xml" xpointer="xpointer(/*/*)"/>
<tbody>
<row>
<entry><function>glGetPointerv</function></entry>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='43']/*)"/>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 xml:id="seealso"><title>See Also</title>
<para>
<citerefentry><refentrytitle>glDebugMessageCallback</refentrytitle></citerefentry>
</para>
</refsect1>
<refsect1 xml:id="Copyright"><title>Copyright</title>
<para>
Copyright <trademark class="copyright"/> 2014 Khronos Group.
This material may be distributed subject to the terms and conditions set forth in
the Open Publication License, v 1.0, 8 June 1999.
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://opencontent.org/openpub/">http://opencontent.org/openpub/</link>.
</para>
</refsect1>
</refentry>
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