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93 lines
4 KiB
XML
93 lines
4 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
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"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
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<refentry id="glXGetVisualFromFBConfig">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>1991-2006</year>
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<holder>Silicon Graphics, Inc.</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glXGetVisualFromFBConfig</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glXGetVisualFromFBConfig</refname>
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<refpurpose>return visual that is associated with the frame buffer configuration</refpurpose>
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</refnamediv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>XVisualInfo * <function>glXGetVisualFromFBConfig</function></funcdef>
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<paramdef>Display * <parameter>dpy</parameter></paramdef>
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<paramdef>GLXFBConfig <parameter>config</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1 id="parameters"><title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><parameter>dpy</parameter></term>
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<listitem>
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<para>
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Specifies the connection to the X server.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>config</parameter></term>
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<listitem>
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<para>
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Specifies the GLX frame buffer configuration.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id="description"><title>Description</title>
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<para>
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If <parameter>config</parameter> is a valid GLX frame buffer configuration
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and it has an associated X Visual, then
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information describing that visual is returned; otherwise <constant>NULL</constant>
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is returned. Use <function>XFree</function> to free the data returned.
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</para>
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</refsect1>
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<refsect1 id="notes"><title>Notes</title>
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<para>
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<function>glXGetVisualFromFBConfig</function> is available only if the GLX version is 1.3 or greater.
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</para>
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<para>
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If the GLX version is 1.1 or 1.0, the GL version must be 1.0.
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If the GLX version is 1.2, then the GL version must be 1.1.
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If the GLX version is 1.3, then the GL version must be 1.2.
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</para>
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<para>
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<constant>XVisualInfo</constant> is defined in <emphasis>Xutil.h.</emphasis>
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It is a structure that includes <emphasis>visual</emphasis>, <emphasis>visualID</emphasis>,
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<emphasis>screen</emphasis>, and <emphasis>depth</emphasis> elements.
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</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para>
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Returns <constant>NULL</constant> if <parameter>config</parameter> is not a valid GLXFBConfig.
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</para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para>
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<citerefentry><refentrytitle>glXGetFBConfigAttrib</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glXChooseFBConfig</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glXChooseVisual</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glXGetConfig</refentrytitle></citerefentry>
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</para>
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</refsect1>
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<refsect1 id="Copyright"><title>Copyright</title>
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<para>
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Copyright <trademark class="copyright"></trademark> 1991-2006
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Silicon Graphics, Inc. This document is licensed under the SGI
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Free Software B License. For details, see
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<ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>.
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</para>
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</refsect1>
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</refentry>
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