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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml">
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<title>glProgramParameter - OpenGL 4 Reference Pages</title>
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<div class="refentry" id="glProgramParameter">
<div class="titlepage"/>
<div class="refnamediv">
<h2>Name</h2>
<p>glProgramParameter — specify a parameter for a program object</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">glProgramParameteri</strong>(</code>
</td>
<td>GLuint <var class="pdparam">program</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLenum <var class="pdparam">pname</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLint <var class="pdparam">value</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 parameter to modify.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>pname</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the name of the parameter to modify.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>value</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the new value of the parameter specified by <em class="parameter"><code>pname</code></em> for <em class="parameter"><code>program</code></em>.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">glProgramParameter</code> specifies a new value for the parameter nameed by
<em class="parameter"><code>pname</code></em> for the program object <em class="parameter"><code>program</code></em>.
</p>
<p>
If <em class="parameter"><code>pname</code></em> is <code class="constant">GL_PROGRAM_BINARY_RETRIEVABLE_HINT</code>,
<em class="parameter"><code>value</code></em> should be <code class="constant">GL_FALSE</code> or <code class="constant">GL_TRUE</code>
to indicate to the implementation the intention of the application to retrieve the program's
binary representation with <a class="citerefentry" href="glGetProgramBinary.xhtml"><span class="citerefentry"><span class="refentrytitle">glGetProgramBinary</span></span></a>.
The implementation may use this information to store information that may be useful for a future
query of the program's binary. It is recommended to set <code class="constant">GL_PROGRAM_BINARY_RETRIEVABLE_HINT</code>
for the program to <code class="constant">GL_TRUE</code> before calling
<a class="citerefentry" href="glLinkProgram.xhtml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a>, and
using the program at run-time if the binary is to be retrieved later.
</p>
<p>
If <em class="parameter"><code>pname</code></em> is <code class="constant">GL_PROGRAM_SEPARABLE</code>, <em class="parameter"><code>value</code></em>
must be <code class="constant">GL_TRUE</code> or <code class="constant">GL_FALSE</code> and indicates whether
<em class="parameter"><code>program</code></em> can be bound to individual pipeline stages via
<a class="citerefentry" href="glUseProgramStages.xhtml"><span class="citerefentry"><span class="refentrytitle">glUseProgramStages</span></span></a>. A program's
<code class="constant">GL_PROGRAM_SEPARABLE</code> parameter must be set to <code class="constant">GL_TRUE</code>
<span class="emphasis"><em>before</em></span> <a class="citerefentry" href="glLinkProgram.xhtml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a>
is called in order for it to be usable with a program pipeline object. The initial state of
<code class="constant">GL_PROGRAM_SEPARABLE</code> is <code class="constant">GL_FALSE</code>.
</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>program</code></em> is not the
name of an existing program object.
</p>
<p>
<code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>pname</code></em> is not one
of the accepted values.
</p>
<p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>value</code></em> is not a valid
value for the parameter named by <em class="parameter"><code>pname</code></em>.
</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>.
</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">glProgramParameteri</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="glGetProgramBinary.xhtml"><span class="citerefentry"><span class="refentrytitle">glGetProgramBinary</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>
</div>
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