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65 lines
3.2 KiB
XML
65 lines
3.2 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="glIsTransformFeedback">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>2010</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glIsTransformFeedback</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glIsTransformFeedback</refname>
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<refpurpose>determine if a name corresponds to a transform feedback object</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>GLboolean <function>glIsTransformFeedback</function></funcdef>
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<paramdef>GLuint <parameter>id</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>id</parameter></term>
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<listitem>
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<para>
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Specifies a value that may be the name of a transform feedback object.
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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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<function>glIsTransformFeedback</function> returns <constant>GL_TRUE</constant> if <parameter>id</parameter> is currently the name of a transform feedback
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object. If <parameter>id</parameter> is zero, or if <constant>id</constant> is not the name of a transform feedback object, or if an error
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occurs, <function>glIsTransformFeedback</function> returns <constant>GL_FALSE</constant>. If <parameter>id</parameter> is a name returned by
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<citerefentry><refentrytitle>glGenTransformFeedbacks</refentrytitle></citerefentry>, but that has not yet been bound through a call to
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<citerefentry><refentrytitle>glBindTransformFeedback</refentrytitle></citerefentry>, then the name is not a transform feedback object and <function>glIsTransformFeedback</function>
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returns <constant>GL_FALSE</constant>.
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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>glGenTransformFeedbacks</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glBindTransformFeedback</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDeleteTransformFeedbacks</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> 2010 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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<ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
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</para>
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</refsect1>
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</refentry>
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