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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>glGetProgramBinary - OpenGL 4 Reference Pages</title>
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<div class="refentry" id="glGetProgramBinary">
<div class="titlepage"/>
<div class="refnamediv">
<h2>Name</h2>
<p>glGetProgramBinary — return a binary representation of a program object's compiled and linked executable source</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">glGetProgramBinary</strong>(</code>
</td>
<td>GLuint <var class="pdparam">program</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLsizei <var class="pdparam">bufsize</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLsizei *<var class="pdparam">length</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLenum *<var class="pdparam">binaryFormat</var>, </td>
</tr>
<tr>
<td> </td>
<td>void *<var class="pdparam">binary</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>program</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the name of a program object whose binary representation to retrieve.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>bufSize</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the size of the buffer whose address is given by <em class="parameter"><code>binary</code></em>.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>length</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the address of a variable to receive the number of bytes written into <em class="parameter"><code>binary</code></em>.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>binaryFormat</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the address of a variable to receive a token indicating the format of the binary data returned by the GL.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>binary</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the address an array into which the GL will return <em class="parameter"><code>program</code></em>'s binary representation.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">glGetProgramBinary</code> returns a binary representation of the compiled
and linked executable for <em class="parameter"><code>program</code></em> into the array of bytes whose
address is specified in <em class="parameter"><code>binary</code></em>. The maximum number of bytes that
may be written into <em class="parameter"><code>binary</code></em> is specified by <em class="parameter"><code>bufSize</code></em>.
If the program binary is greater in size than <em class="parameter"><code>bufSize</code></em> bytes,
then an error is generated, otherwise the actual number of bytes written into <em class="parameter"><code>binary</code></em>
is returned in the variable whose address is given by <em class="parameter"><code>length</code></em>. If
<em class="parameter"><code>length</code></em> is <code class="constant">NULL</code>, then no length is returned.
</p>
<p>
The format of the program binary written into <em class="parameter"><code>binary</code></em> is returned in
the variable whose address is given by <em class="parameter"><code>binaryFormat</code></em>, and may be implementation dependent. The binary produced
by the GL may subsequently be returned to the GL by calling <a class="citerefentry" href="glProgramBinary.xhtml"><span class="citerefentry"><span class="refentrytitle">glProgramBinary</span></span></a>,
with <em class="parameter"><code>binaryFormat</code></em> and <em class="parameter"><code>length</code></em> set to the values
returned by <code class="function">glGetProgramBinary</code>, and passing the returned binary data
in the <em class="parameter"><code>binary</code></em> parameter.
</p>
</div>
<div class="refsect1" id="errors">
<h2>Errors</h2>
<p>
<code class="constant">GL_INVALID_OPERATION</code> is generated if <em class="parameter"><code>bufSize</code></em> is less than
the size of <code class="constant">GL_PROGRAM_BINARY_LENGTH</code> for <em class="parameter"><code>program</code></em>.
</p>
<p>
<code class="constant">GL_INVALID_OPERATION</code> is generated if <code class="constant">GL_LINK_STATUS</code> for the
program object is false.
</p>
</div>
<div class="refsect1" id="associatedgets">
<h2>Associated Gets</h2>
<p>
<a class="citerefentry" href="glGetProgram.xhtml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a> with argument <code class="constant">GL_PROGRAM_BINARY_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">glGetProgramBinary</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="glGetProgram.xhtml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a>,
<a class="citerefentry" href="glProgramBinary.xhtml"><span class="citerefentry"><span class="refentrytitle">glProgramBinary</span></span></a>
</p>
</div>
<div class="refsect1" id="Copyright">
<h2>Copyright</h2>
<p>
Copyright <span class="trademark"/>© 2010-2014 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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