
<refentry id="glXGetCurrentReadDrawable">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>1991-2006</year>
                <holder>Silicon Graphics, Inc.</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>glXGetCurrentReadDrawable</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glXGetCurrentReadDrawable</refname>
        <refpurpose>return the current drawable</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>GLXDrawable <function>glXGetCurrentReadDrawable</function></funcdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>glXGetCurrentReadDrawable</function> returns the current read drawable,
            as specified by <constant>read</constant> parameter
            of <citerefentry><refentrytitle>glXMakeContextCurrent</refentrytitle></citerefentry>.
            If there is no current drawable,
            <constant>None</constant> is returned.
        </para>
        <para>
            <function>glXGetCurrentReadDrawable</function> returns client-side information.
            It does not make a round-trip to the server.
        </para>
    </refsect1>
    <refsect1 id="notes"><title>Notes</title>
        <para>
            <function>glXGetCurrentReadDrawable</function> is only supported if the GLX version is 1.3 or greater.
        </para>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>glXGetCurrentContext</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glXGetCurrentDisplay</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glXGetCurrentDrawable</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glXMakeContextCurrent</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>
