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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>glGetObjectPtrLabel - OpenGL 4 Reference Pages</title>
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<header/>
<div class="refentry" id="glGetObjectPtrLabel">
<div class="titlepage"/>
<div class="refnamediv">
<h2>Name</h2>
<p>glGetObjectPtrLabel — retrieve the label of a sync object identified by a pointer</p>
</div>
<div class="refsynopsisdiv">
<h2>C Specification</h2>
<div class="funcsynopsis">
<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
<tr>
<td>
<code class="funcdef">void <strong class="fsfunc">glGetObjectPtrLabel</strong>(</code>
</td>
<td>void * <var class="pdparam">ptr</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLsizei <var class="pdparam">bifSize</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLsizei * <var class="pdparam">length</var>, </td>
</tr>
<tr>
<td> </td>
<td>char * <var class="pdparam">label</var><code>)</code>;</td>
</tr>
</table>
<div class="funcprototype-spacer"> </div>
</div>
</div>
<div class="refsect1" id="parameters">
<h2>Parameters</h2>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
<em class="parameter">
<code>ptr</code>
</em>
</span>
</dt>
<dd>
<p>
The name of the sync object whose label to retrieve.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>bufSize</code>
</em>
</span>
</dt>
<dd>
<p>
The length of the buffer whose address is in <em class="parameter"><code>label</code></em>.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>length</code>
</em>
</span>
</dt>
<dd>
<p>
The address of a variable to receive the length of the object label.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>label</code>
</em>
</span>
</dt>
<dd>
<p>
The address of a string that will receive the object label.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">glGetObjectPtrLabel</code> retrieves the label of the sync object identified by
<em class="parameter"><code>ptr</code></em>.
</p>
<p>
<em class="parameter"><code>label</code></em> is the address of a string that will be used to store the object label.
<em class="parameter"><code>bufSize</code></em> specifies the number of characters in the array identified by <em class="parameter"><code>label</code></em>.
<em class="parameter"><code>length</code></em> contains the address of a variable which will receive the the number of characters in the object label.
If <em class="parameter"><code>length</code></em> is NULL, then it is ignored and no data is written. Likewise, if <em class="parameter"><code>label</code></em>
is NULL, or if <em class="parameter"><code>bufSize</code></em> is zero then no data is written to <em class="parameter"><code>label</code></em>.
</p>
</div>
<div class="refsect1" id="errors">
<h2>Errors</h2>
<p>
<code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>identifier</code></em>
is not one of the accepted object types.
</p>
<p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>ptr</code></em>
is not the name of an existing sync object.
</p>
<p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>bufSize</code></em> is
zero.
</p>
<p>
If not NULL, <em class="parameter"><code>length</code></em> and <em class="parameter"><code>label</code></em> should be addresses
to which the client has write access, otherwise undefined behavior, including process termination
may occur.
</p>
</div>
<div class="refsect1" id="associatedgets">
<h2>Associated Gets</h2>
<p>
<a class="citerefentry" href="glGet.xhtml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_MAX_LABEL_LENGTH</code>.
</p>
</div>
<div class="refsect1" id="versions">
<h2>Version Support</h2>
<div class="informaltable">
<table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">
<colgroup>
<col style="text-align: left; "/>
<col style="text-align: center; " class="firstvers"/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; " class="lastvers"/>
</colgroup>
<thead>
<tr>
<th style="text-align: left; border-right: 2px solid ; ">
</th>
<th style="text-align: center; border-bottom: 2px solid ; " colspan="12">
<span class="bold"><strong>OpenGL Version</strong></span>
</th>
</tr>
<tr>
<th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>Function / Feature Name</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>2.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>2.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.2</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.3</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.2</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.3</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.4</strong></span>
</th>
<th style="text-align: center; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.5</strong></span>
</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: left; border-right: 2px solid ; ">
<code class="function">glGetObjectPtrLabel</code>
</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">✔</td>
<td style="text-align: center; border-right: 2px solid ; ">✔</td>
<td style="text-align: center; ">✔</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="refsect1" id="seealso">
<h2>See Also</h2>
<p>
<a class="citerefentry" href="glPushDebugGroup.xhtml"><span class="citerefentry"><span class="refentrytitle">glPushDebugGroup</span></span></a>,
<a class="citerefentry" href="glPopDebugGroup.xhtml"><span class="citerefentry"><span class="refentrytitle">glPopDebugGroup</span></span></a>,
<a class="citerefentry" href="glObjectLabel.xhtml"><span class="citerefentry"><span class="refentrytitle">glObjectLabel</span></span></a>,
<a class="citerefentry" href="glGetObjectLabel.xhtml"><span class="citerefentry"><span class="refentrytitle">glGetObjectLabel</span></span></a>.
</p>
</div>
<div class="refsect1" id="Copyright">
<h2>Copyright</h2>
<p>
Copyright <span class="trademark"/>© 2013-2014 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="link" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
</p>
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