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4 Reference Pages
</title><meta name=
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"DocBook XSL Stylesheets V1.69.1" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glIsSync"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glIsSync — determine if a name corresponds to a sync object
</p></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><p><code class=
"funcdef">GLboolean
<b class=
"fsfunc">glIsSync
</b>(
</code>GLsync
<var class=
"pdparam">sync
</var><code>)
</code>;
</p></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>sync
</code></em></span></dt><dd><p>
5 Specifies a value that may be the name of a sync 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">glIsSync
</code> returns
<code class=
"constant">GL_TRUE
</code> if
<em class=
"parameter"><code>sync
</code></em> is currently the name of a sync object.
8 If
<em class=
"parameter"><code>sync
</code></em> is not the name of a sync object, or if an error occurs,
<code class=
"function">glIsSync
</code> returns
9 <code class=
"constant">GL_FALSE
</code>. Note that zero is not the name of a sync object.
10 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"notes"></a><h2>Notes
</h2><p>
11 <code class=
"function">glIsSync
</code> is available only if the GL version is
3.2 or greater.
12 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
13 <a href=
"glFenceSync.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glFenceSync
</span></span></a>,
14 <a href=
"glWaitSync.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glWaitSync
</span></span></a>,
15 <a href=
"glClientWaitSync.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glClientWaitSync
</span></span></a>,
16 <a href=
"glDeleteSync.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteSync
</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>.
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