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<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>
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<refentry xmlns= "http://docbook.org/ns/docbook" version= "5.0" xml:id= "glIsFramebuffer" >
<info >
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<copyright >
<year > 2010-2013</year>
<holder > Khronos Group</holder>
</copyright>
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</info>
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<refmeta >
<refentrytitle > glIsFramebuffer</refentrytitle>
<manvolnum > 3G</manvolnum>
</refmeta>
<refnamediv >
<refname > glIsFramebuffer</refname>
<refpurpose > determine if a name corresponds to a framebuffer object</refpurpose>
</refnamediv>
<refsynopsisdiv > <title > C Specification</title>
<funcsynopsis >
<funcprototype >
<funcdef > GLboolean <function > glIsFramebuffer</function> </funcdef>
<paramdef > GLuint <parameter > framebuffer</parameter> </paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
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<refsect1 xml:id= "parameters" > <title > Parameters</title>
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<variablelist >
<varlistentry >
<term > <parameter > framebuffer</parameter> </term>
<listitem >
<para >
Specifies a value that may be the name of a framebuffer object.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
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<refsect1 xml:id= "description" > <title > Description</title>
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<para >
<function > glIsFramebuffer</function> returns <constant > GL_TRUE</constant> if <parameter > framebuffer</parameter> is currently the name of a framebuffer
object. If <parameter > framebuffer</parameter> is zero, or if <constant > framebuffer</constant> is not the name of a framebuffer object, or if an error
occurs, <function > glIsFramebuffer</function> returns <constant > GL_FALSE</constant> . If <parameter > framebuffer</parameter> is a name returned by
<citerefentry > <refentrytitle > glGenFramebuffers</refentrytitle> </citerefentry> , by that has not yet been bound through a call to
<citerefentry > <refentrytitle > glBindFramebuffer</refentrytitle> </citerefentry> , then the name is not a framebuffer object and <function > glIsFramebuffer</function>
returns <constant > GL_FALSE</constant> .
</para>
</refsect1>
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<refsect1 xml:id= "seealso" > <title > See Also</title>
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<para >
<citerefentry > <refentrytitle > glGenFramebuffers</refentrytitle> </citerefentry> ,
<citerefentry > <refentrytitle > glBindFramebuffer</refentrytitle> </citerefentry> ,
<citerefentry > <refentrytitle > glDeleteFramebuffers</refentrytitle> </citerefentry>
</para>
</refsect1>
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<refsect1 xml:id= "Copyright" > <title > Copyright</title>
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<para >
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Copyright <trademark class= "copyright" /> 2010-2013 Khronos Group.
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This material may be distributed subject to the terms and conditions set forth in
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the Open Publication License, v 1.0, 8 June 1999.
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<link xmlns:xlink= "http://www.w3.org/1999/xlink" xlink:href= "http://opencontent.org/openpub/" > http://opencontent.org/openpub/</link> .
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</para>
</refsect1>
</refentry>