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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>glGetRenderbufferParameter - OpenGL 4 Reference Pages</title>
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<header/>
<div class="refentry" id="glGetRenderbufferParameter">
<div class="titlepage"/>
<div class="refnamediv">
<h2>Name</h2>
<p>glGetRenderbufferParameteriv, glGetNamedRenderbufferParameteriv — query a named parameter of a renderbuffer 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">glGetRenderbufferParameteriv</strong>(</code>
</td>
<td>GLenum <var class="pdparam">target</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLenum <var class="pdparam">pname</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLint *<var class="pdparam">params</var><code>)</code>;</td>
</tr>
</table>
<div class="funcprototype-spacer"> </div>
<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
<tr>
<td>
<code class="funcdef">void <strong class="fsfunc">glGetNamedRenderbufferParameteriv</strong>(</code>
</td>
<td>GLuint <var class="pdparam">renderbuffer</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLenum <var class="pdparam">pname</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLint *<var class="pdparam">params</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>target</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the target to which the renderbuffer object is
bound for
<code class="function">glGetRenderbufferParameteriv</code>.
<em class="parameter"><code>target</code></em> must be
<code class="constant">GL_RENDERBUFFER</code>.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>renderbuffer</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the name of the renderbuffer object for
<code class="function">glGetNamedRenderbufferParameteriv</code>.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>pname</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the parameter of the renderbuffer object to
query.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>params</code>
</em>
</span>
</dt>
<dd>
<p>
Returns the value of parameter
<em class="parameter"><code>pname</code></em> for the renderbuffer object.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">glGetRenderbufferParameteriv</code> and
<code class="function">glGetNamedRenderbufferParameteriv</code> query
parameters of a specified renderbuffer object.
</p>
<p>
For <code class="function">glGetRenderbufferParameteriv</code>, the
renderbuffer object is that bound to
<em class="parameter"><code>target</code></em>, which must be
<code class="constant">GL_RENDERBUFFER</code>.
</p>
<p>
For <code class="function">glGetNamedRenderbufferParameteriv</code>,
<em class="parameter"><code>renderbuffer</code></em> is the name of the
renderbuffer object.
</p>
<p>
Upon successful return, <em class="parameter"><code>param</code></em> will
contain the value of the renderbuffer parameter specified by
<em class="parameter"><code>pname</code></em>, as described below.
</p>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
<code class="constant">GL_RENDERBUFFER_WIDTH</code>,
<code class="constant">GL_RENDERBUFFER_HEIGHT</code>,
<code class="constant">GL_RENDERBUFFER_INTERNAL_FORMAT</code> or
<code class="constant">GL_RENDERBUFFER_SAMPLES</code>
</span>
</dt>
<dd>
<p>
<em class="parameter"><code>params</code></em> returns the width in
pixels, the height in pixels, internal format, or
the number of samples, respectively, of the image of
the specified renderbuffer object.
</p>
</dd>
<dt>
<span class="term">
<code class="constant">GL_RENDERBUFFER_RED_SIZE</code>,
<code class="constant">GL_RENDERBUFFER_GREEN_SIZE</code>,
<code class="constant">GL_RENDERBUFFER_BLUE_SIZE</code>,
<code class="constant">GL_RENDERBUFFER_ALPHA_SIZE</code>,
<code class="constant">GL_RENDERBUFFER_DEPTH_SIZE</code> or
<code class="constant">GL_RENDERBUFFER_STENCIL_SIZE</code>
</span>
</dt>
<dd>
<p>
<em class="parameter"><code>params</code></em> returns the actual
resolution in bits (not the resolution specified
when the image was defined) for the red, green,
blue, alpha, depth or stencil components,
respectively, of the image of the renderbuffer
object.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="errors">
<h2>Errors</h2>
<p>
<code class="constant">GL_INVALID_ENUM</code> is generated by
<code class="function">glGetRenderbufferParameteriv</code> if
<em class="parameter"><code>target</code></em> is not
<code class="constant">GL_RENDERBUFFER</code>.
</p>
<p>
<code class="constant">GL_INVALID_OPERATION</code> is generated by
<code class="function">glGetRenderbufferParameteriv</code> if
zero is bound to <em class="parameter"><code>target</code></em>.
</p>
<p>
<code class="constant">GL_INVALID_OPERATION</code> is generated by
<code class="function">glGetNamedRenderbufferParameteriv</code>
if <em class="parameter"><code>renderbuffer</code></em> is not the name of an
existing renderbuffer 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
parameter names described above.
</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 ; border-bottom: 2px solid ; ">
<code class="function">glGetNamedRenderbufferParameteriv</code>
</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-bottom: 2px solid ; ">✔</td>
</tr>
<tr>
<td style="text-align: left; border-right: 2px solid ; ">
<code class="function">glGetRenderbufferParameteriv</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="glGenRenderbuffers.xhtml"><span class="citerefentry"><span class="refentrytitle">glGenRenderbuffers</span></span></a>,
<a class="citerefentry" href="glFramebufferRenderbuffer.xhtml"><span class="citerefentry"><span class="refentrytitle">glFramebufferRenderbuffer</span></span></a>,
<a class="citerefentry" href="glBindRenderbuffer.xhtml"><span class="citerefentry"><span class="refentrytitle">glBindRenderbuffer</span></span></a>,
<a class="citerefentry" href="glRenderbufferStorage.xhtml"><span class="citerefentry"><span class="refentrytitle">glRenderbufferStorage</span></span></a>,
<a class="citerefentry" href="glRenderbufferStorageMultisample.xhtml"><span class="citerefentry"><span class="refentrytitle">glRenderbufferStorageMultisample</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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