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<?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 - OpenGL ES 3.0 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div class="refentry" title="glIsFramebuffer"><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" title="C Specification"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">GLboolean <b class="fsfunc">glIsFramebuffer</b>(</code></td><td>GLuint <var class="pdparam">framebuffer</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Parameters"><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>
                    Specifies a value that may be the name of a framebuffer object.
                </p></dd></dl></div></div><div class="refsect1" title="Description"><a id="description"></a><h2>Description</h2><p>
            <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
            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
            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
            <a class="citerefentry" href="glGenFramebuffers.xml"><span class="citerefentry"><span class="refentrytitle">glGenFramebuffers</span></span></a>, by that has not yet been bound through a call to
            <a class="citerefentry" 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>
            returns <code class="constant">GL_FALSE</code>.
        </p></div><div class="refsect1" title="See Also"><a id="seealso"></a><h2>See Also</h2><p>
            <a class="citerefentry" href="glGenFramebuffers.xml"><span class="citerefentry"><span class="refentrytitle">glGenFramebuffers</span></span></a>,
            <a class="citerefentry" href="glBindFramebuffer.xml"><span class="citerefentry"><span class="refentrytitle">glBindFramebuffer</span></span></a>,
            <a class="citerefentry" href="glDeleteFramebuffers.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteFramebuffers</span></span></a>
        </p></div><div class="refsect1" title="Copyright"><a id="Copyright"></a><h2>Copyright</h2><p>
            Copyright <span class="trademark"></span>© 2010-2012 Khronos Group. 
            This material may be distributed subject to the terms and conditions set forth in 
            the Open Publication License, v 1.0, 8 June 1999.
            <a class="ulink" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
        </p></div></div></body></html>
