1 <?xml version=
"1.0" encoding=
"UTF-8"?>
2 <!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd">
3 <!-- saved from url=(0013)about:internet -->
4 <?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" /><link rel=
"stylesheet" type=
"text/css" href=
"opengl-man.css" /><title>glIsFramebuffer
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.69.1" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glIsFramebuffer"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glIsFramebuffer — determine if a name corresponds to a framebuffer object
</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">GLboolean
<b class=
"fsfunc">glIsFramebuffer
</b>(
</code></td><td>GLuint
</td><td><var class=
"pdparam">framebuffer
</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>framebuffer
</code></em></span></dt><dd><p>
5 Specifies a value that may be the name of a framebuffer object.
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">glIsFramebuffer
</code> returns
<code class=
"constant">GL_TRUE
</code> if
<em class=
"parameter"><code>framebuffer
</code></em> is currently the name of a framebuffer
8 object. If
<em class=
"parameter"><code>framebuffer
</code></em> is zero, or if
<code class=
"constant">framebuffer
</code> is not the name of a framebuffer object, or if an error
9 occurs,
<code class=
"function">glIsFramebuffer
</code> returns
<code class=
"constant">GL_FALSE
</code>. If
<em class=
"parameter"><code>framebuffer
</code></em> is a name returned by
10 <a href=
"glGenFramebuffers.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGenFramebuffers
</span></span></a>, by that has not yet been bound through a call to
11 <a href=
"glBindFramebuffer.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBindFramebuffer
</span></span></a>, then the name is not a framebuffer object and
<code class=
"function">glIsFramebuffer
</code>
12 returns
<code class=
"constant">GL_FALSE
</code>.
13 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
14 <a href=
"glGenFramebuffers.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGenFramebuffers
</span></span></a>,
15 <a href=
"glBindFramebuffer.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBindFramebuffer
</span></span></a>,
16 <a href=
"glDeleteFramebuffers.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteFramebuffers
</span></span></a>
17 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
18 Copyright
<span class=
"trademark"></span>©
2010 Khronos Group.
19 This material may be distributed subject to the terms and conditions set forth in
20 the Open Publication License, v
1.0,
8 June
1999.
21 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
22 </p></div></div></body></html>