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1 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> |
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3 | <?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>gluGetString</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="gluGetString"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>gluGetString — return a string describing the GLU version or GLU extensions </p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">const GLubyte * <b class="fsfunc">gluGetString</b>(</code></td><td>GLenum </td><td><var class="pdparam">name</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>name</code></em></span></dt><dd><p> | |
4 | Specifies a symbolic constant, one of | |
5 | <code class="constant">GLU_VERSION</code>, or <code class="constant">GLU_EXTENSIONS</code>. | |
6 | </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
7 | <code class="function">gluGetString</code> returns a pointer to a static string describing the | |
8 | GLU version or the GLU extensions that are supported. | |
9 | </p><p> | |
10 | The version number is one of the following | |
11 | forms: | |
12 | </p><p> | |
13 | <span class="emphasis"><em>major_number.minor_number</em></span> | |
14 | <span class="emphasis"><em>major_number.minor_number.release_number</em></span>. | |
15 | </p><p> | |
16 | The version string is of the following form: | |
17 | </p><p> | |
18 | <span class="emphasis"><em>version number<space>vendor-specific information</em></span> | |
19 | </p><p> | |
20 | Vendor-specific information is optional. | |
21 | Its format and contents depend on the implementation. | |
22 | </p><p> | |
23 | The standard GLU contains a basic set of features and capabilities. | |
24 | If a company or group of companies wish to support other features, | |
25 | these may be included as extensions to the GLU. | |
26 | If <em class="parameter"><code>name</code></em> is | |
27 | <code class="constant">GLU_EXTENSIONS</code>, then <code class="function">gluGetString</code> | |
28 | returns a space-separated list of names of supported GLU extensions. | |
29 | (Extension names never contain spaces.) | |
30 | </p><p> | |
31 | All strings are null-terminated. | |
32 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p> | |
33 | <code class="function">gluGetString</code> only returns information about GLU extensions. Call <code class="function">glGetString</code> | |
34 | to get a list of GL extensions. | |
35 | </p><p> | |
36 | <code class="function">gluGetString</code> is an initialization routine. Calling it after | |
37 | a <a class="citerefentry" href="glNewList.xml"><span class="citerefentry"><span class="refentrytitle">glNewList</span></span></a> results in undefined behavior. | |
38 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p> | |
39 | NULL is returned if <em class="parameter"><code>name</code></em> is not | |
40 | <code class="constant">GLU_VERSION</code> or <code class="constant">GLU_EXTENSIONS</code>. | |
41 | </p><p> | |
42 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
43 | <a class="citerefentry" href="glGetString.xml"><span class="citerefentry"><span class="refentrytitle">glGetString</span></span></a> | |
44 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
45 | Copyright <span class="trademark"></span>© 1991-2006 | |
46 | Silicon Graphics, Inc. This document is licensed under the SGI | |
47 | Free Software B License. For details, see | |
48 | <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>. | |
49 | </p></div></div></body></html> |