File: glGetVertexAttribPointerv.xml

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<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>

<!-- Converted by db4-upgrade version 1.1 -->

<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glGetVertexAttribPointerv">
    <info>
        <copyright>
            <year>2003-2005</year>
            <holder>3Dlabs Inc. Ltd.</holder>
        </copyright>
        <copyright>
            <year>2010-2014</year>
            <holder>Khronos Group</holder>
        </copyright>
    </info>
    <refmeta>
        <refentrytitle>glGetVertexAttribPointerv</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glGetVertexAttribPointerv</refname>
        <refpurpose>return the address of the specified generic vertex attribute pointer</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
    <funcsynopsis>
        <funcprototype>
        <funcdef>void <function>glGetVertexAttribPointerv</function></funcdef>
        <paramdef>GLuint <parameter>index</parameter></paramdef>
        <paramdef>GLenum <parameter>pname</parameter></paramdef>
        <paramdef>GLvoid **<parameter>pointer</parameter></paramdef>
        </funcprototype>
    </funcsynopsis>
    </refsynopsisdiv>
    <refsect1 xml:id="parameters"><title>Parameters</title>
    <variablelist>
        <varlistentry>
        <term><parameter>index</parameter></term>
        <listitem>
            <para>Specifies the generic vertex attribute
            parameter to be returned.</para>
        </listitem>
        </varlistentry>
        <varlistentry>
        <term><parameter>pname</parameter></term>
        <listitem>
            <para>Specifies the symbolic name of the generic
            vertex attribute parameter to be returned. Must be
            <constant>GL_VERTEX_ATTRIB_ARRAY_POINTER</constant>.</para>
        </listitem>
        </varlistentry>
        <varlistentry>
        <term><parameter>pointer</parameter></term>
        <listitem>
            <para>Returns the pointer value.</para>
        </listitem>
        </varlistentry>
    </variablelist>
    </refsect1>
    <refsect1 xml:id="description"><title>Description</title>
    <para><function>glGetVertexAttribPointerv</function> returns
    pointer information. <parameter>index</parameter> is the generic
    vertex attribute to be queried, <parameter>pname</parameter> is
    a symbolic constant indicating the pointer to be returned, and
    <parameter>params</parameter> is a pointer to a location in
    which to place the returned data.</para>

    <para>The <parameter>pointer</parameter> returned is a byte offset into the data store of the buffer object
    that was bound to the <constant>GL_ARRAY_BUFFER</constant> target
    (see <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>) when the desired pointer was previously specified.
        </para>
    </refsect1>
    <refsect1 xml:id="notes"><title>Notes</title>
    <para>The state returned is retrieved from the currently bound vertex array object.</para>
    <para>The initial value for each pointer is 0.</para>
    </refsect1>
    <refsect1 xml:id="errors"><title>Errors</title>
    <para><constant>GL_INVALID_OPERATION</constant> is generated if no vertex array object is currently bound.</para>

    <para><constant>GL_INVALID_VALUE</constant>
    is generated if <parameter>index</parameter>
    is greater than or equal to <constant>GL_MAX_VERTEX_ATTRIBS</constant>.</para>

    <para><constant>GL_INVALID_ENUM</constant>
    is generated if <parameter>pname</parameter>
    is not an accepted value.</para>
    </refsect1>
    <refsect1 xml:id="associatedgets"><title>Associated Gets</title>
    <para><citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>
    with argument <constant>GL_MAX_VERTEX_ATTRIBS</constant></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>glGetVertexAttribPointerv</function></entry>
                        <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='20']/*)"/>
                    </row>
                </tbody>
            </tgroup>
        </informaltable>
    </refsect1>
    <refsect1 xml:id="seealso"><title>See Also</title>
    <para><citerefentry><refentrytitle>glGetVertexAttrib</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glVertexAttribPointer</refentrytitle></citerefentry></para>
    </refsect1>
    <refsect1 xml:id="Copyright"><title>Copyright</title>
        <para>
            Copyright <trademark class="copyright"/> 2003-2005 3Dlabs Inc. Ltd.
            Copyright <trademark class="copyright"/> 2010-2014 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>