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<?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>glGetPointerv</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /></head><body><div class="refentry"><a id="glGetPointerv"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetPointerv — return the address of the specified pointer</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void <strong class="fsfunc">glGetPointerv</strong>(</code></td><td>GLenum <var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLvoid ** <var class="pdparam">params</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term">
                    <em class="parameter"><code>pname</code></em>
                </span></dt><dd><p>
                    Specifies the array or buffer pointer to be returned.
                    Accepted symbolic names are
                    <code class="constant">GL_COLOR_ARRAY_POINTER</code>,
                    
                    <code class="constant">GL_NORMAL_ARRAY_POINTER</code>,
                    <code class="constant">GL_POINT_SIZE_ARRAY_POINTER_OES</code><span class="phrase">,</span>
                    <code class="constant">GL_TEXTURE_COORD_ARRAY_POINTER</code>,<span class="phrase"> and</span>
                    <code class="constant">GL_VERTEX_ARRAY_POINTER</code><span class="phrase">.</span>
                    
                    </p></dd><dt><span class="term">
                    <em class="parameter"><code>params</code></em>
                </span></dt><dd><p>
                    Returns the pointer value specified by <em class="parameter"><code>pname</code></em>.
                    </p></dd></dl></div></div><div class="refsect1"><a id="description"></a><h2>Description</h2><p>
        <code class="function">glGetPointerv</code>
        returns pointer information.
        <em class="parameter"><code>pname</code></em> is a
        symbolic constant indicating the pointer to be returned, and
        <em class="parameter"><code>params</code></em> is a pointer to a
        location in which to place the returned data.
        </p><p>
	Querying the GL_TEXTURE_COORD_ARRAY_POINTER returns the value for
	the active client texture unit.
	</p><p>
	If a non-zero
	named buffer object was bound to the GL_ARRAY_BUFFER target
	(see
	<a class="citerefentry" href="glBindBuffer.xml"><span class="citerefentry"><span class="refentrytitle">glBindBuffer</span></span></a>)
	when the desired pointer was previously specified, the pointer
	returned is a byte offset into the buffer object's data store.
	</p></div><div class="refsect1"><a id="notes"></a><h2>Notes</h2><p> 
	<code class="function">glGetPointerv</code> is only supported
	if the OpenGL ES version number is 1.1 or greater. 
	</p><p>
        The pointers are all client-side state.
        </p><p>
        The initial value for each pointer is 0.
        </p></div><div class="refsect1"><a id="errors"></a><h2>Errors</h2><p>
        <code class="constant">GL_INVALID_ENUM</code> is generated if
        <em class="parameter"><code>pname</code></em> is not an accepted value.
        </p></div><div class="refsect1"><a id="seealso"></a><h2>See Also</h2><p>
        <a class="citerefentry" href="glBindBuffer.xml"><span class="citerefentry"><span class="refentrytitle">glBindBuffer</span></span></a>,
        <a class="citerefentry" href="glClientActiveTexture.xml"><span class="citerefentry"><span class="refentrytitle">glClientActiveTexture</span></span></a>,
        <a class="citerefentry" href="glColorPointer.xml"><span class="citerefentry"><span class="refentrytitle">glColorPointer</span></span></a>,
        <a class="citerefentry" href="glDrawArrays.xml"><span class="citerefentry"><span class="refentrytitle">glDrawArrays</span></span></a>,
        <a class="citerefentry" href="glMatrixIndexPointer.xml"><span class="citerefentry"><span class="refentrytitle">glMatrixIndexPointer</span></span></a>,
        <a class="citerefentry" href="glNormalPointer.xml"><span class="citerefentry"><span class="refentrytitle">glNormalPointer</span></span></a>,
        <a class="citerefentry" href="glTexCoordPointer.xml"><span class="citerefentry"><span class="refentrytitle">glTexCoordPointer</span></span></a>,
        <a class="citerefentry" href="glPointSizePointerOES.xml"><span class="citerefentry"><span class="refentrytitle">glPointSizePointerOES</span></span></a>,
        <a class="citerefentry" href="glVertexPointer.xml"><span class="citerefentry"><span class="refentrytitle">glVertexPointer</span></span></a>
        
        </p></div><div class="refsect1"><a id="copyright"></a><h2>Copyright</h2><p>
            Copyright <span class="trademark"></span>© 2003-2004
            Silicon Graphics, Inc. This document is licensed under the SGI
            Free Software B License. For details, see
            <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
        </p></div></div></body></html>