
<refentry id="glXGetFBConfigs">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>1991-2006</year>
                <holder>Silicon Graphics, Inc.</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>glXGetFBConfigs</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glXGetFBConfigs</refname>
        <refpurpose>list all GLX frame buffer configurations for a given screen</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>GLXFBConfig * <function>glXGetFBConfigs</function></funcdef>
                <paramdef>Display * <parameter>dpy</parameter></paramdef>
                <paramdef>int <parameter>screen</parameter></paramdef>
                <paramdef>int * <parameter>nelements</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>
        <varlistentry>
            <term><parameter>nelements</parameter></term>
            <listitem>
                <para>
                    Returns the number of GLXFBConfigs returned.
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>glXGetFBConfigs</function> returns a list of all GLXFBConfigs available on the screen
            specified by <parameter>screen</parameter>. Use <citerefentry><refentrytitle>glXGetFBConfigAttrib</refentrytitle></citerefentry> to obtain attribute
            values from a specific GLXFBConfig.
        </para>
    </refsect1>
    <refsect1 id="notes"><title>Notes</title>
        <para>
            <function>glXGetFBConfigs</function> is available only if the GLX version is 1.3 or greater.
        </para>
        <para>
            If the GLX version is 1.1 or 1.0, the GL version must be 1.0.
            If the GLX version is 1.2, then the GL version must be 1.1.
            If the GLX version is 1.3, then the GL version must be 1.2.
        </para>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>glXGetFBConfigAttrib</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glXGetVisualFromFBConfig</refentrytitle></citerefentry>
            <citerefentry><refentrytitle>glXChooseFBConfig</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>
