<div class="refentry"><a id="glGetBufferParameteriv"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetBufferParameteriv — return parameters of a buffer object</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table class="funcprototype-table" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void <strong class="fsfunc">glGetBufferParameteriv</strong>(</code></td><td>GLenum <var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLenum <var class="pdparam">value</var>, </td></tr><tr><td> </td><td>GLint * <var class="pdparam">data</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a id="parameters"></a><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 buffer object.

The symbolic constant must be <code class="constant">GL_ARRAY_BUFFER</code> or

<code class="constant">GL_ELEMENT_ARRAY_BUFFER</code>.

</p></dd><dt><span class="term"><em class="parameter"><code>value</code></em></span></dt><dd><p>

Specifies the symbolic name of a buffer object parameter.

Accepted values are <code class="constant">GL_BUFFER_SIZE</code> or <code class="constant">GL_BUFFER_USAGE</code>.

</p></dd><dt><span class="term"><em class="parameter"><code>data</code></em></span></dt><dd><p>

Returns the requested parameter.

</p></dd></dl></div></div><div class="refsect1"><a id="description"></a><h2>Description</h2><p>

<code class="function">glGetBufferParameteriv</code> returns in <em class="parameter"><code>data</code></em> a selected parameter of the buffer object

specified by <em class="parameter"><code>target</code></em>.

</p><p>

<em class="parameter"><code>value</code></em> names a specific buffer object parameter, as follows:

</p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="constant">GL_BUFFER_SIZE</code></span></dt><dd><p>

<em class="parameter"><code>params</code></em> returns the size of the buffer object, measured in bytes.

The initial value is 0.

</p></dd><dt><span class="term"><code class="constant">GL_BUFFER_USAGE</code></span></dt><dd><p>

<em class="parameter"><code>params</code></em> returns the buffer object's usage pattern. The initial value is

<code class="constant">GL_STATIC_DRAW</code>.

</p></dd></dl></div></div><div class="refsect1"><a id="notes"></a><h2>Notes</h2><p>

If an error is generated,

no change is made to the contents of <em class="parameter"><code>data</code></em>.

</p></div><div class="refsect1"><a id="errors"></a><h2>Errors</h2><p>

<code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>target</code></em> or <em class="parameter"><code>value</code></em> is not an

accepted value.

</p><p>

<code class="constant">GL_INVALID_OPERATION</code> is generated if the reserved buffer object name 0 is bound to <em class="parameter"><code>target</code></em>.

</p></div>

{$pipelinestall}{$examples}

<div class="refsect1"><a id="seealso"></a><h2>See Also</h2><p>

<a class="citerefentry" href="glBindBuffer"><span class="citerefentry"><span class="refentrytitle">glBindBuffer</span></span></a>,

<a class="citerefentry" href="glBufferData"><span class="citerefentry"><span class="refentrytitle">glBufferData</span></span></a>

</p></div><div class="refsect1"><div id="Copyright"><h2>Copyright</h2><p>

Copyright © 2005 Addison-Wesley.

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="ulink" href="https://opencontent.org/openpub/" target="_top">https://opencontent.org/openpub/</a>.

</p></div></div></div>