<div class="refentry" lang="en" xml:lang="en"><a id="glDeleteShader"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glDeleteShader — Deletes a shader object</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table><tr><td><code class="funcdef">void <b class="fsfunc">glDeleteShader</b>(</code></td><td>GLuint  </td><td><var class="pdparam">shader</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>shader</code></em></span></dt><dd><p>Specifies the shader object to be deleted.</p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p><code class="function">glDeleteShader</code> frees the memory and

invalidates the name associated with the shader object specified

by <em class="parameter"><code>shader</code></em>. This command effectively

undoes the effects of a call to

<a class="citerefentry" href="glCreateShader"><span class="citerefentry"><span class="refentrytitle">glCreateShader</span></span></a>.</p><p>If a shader object to be deleted is attached to a program

object, it will be flagged for deletion, but it will not be

deleted until it is no longer attached to any program object,

for any rendering context (i.e., it must be detached from

wherever it was attached before it will be deleted). A value of

0 for <em class="parameter"><code>shader</code></em> will be silently

ignored.</p><p>To determine whether an object has been flagged for

deletion, call

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

with arguments <em class="parameter"><code>shader</code></em> and

<code class="constant">GL_DELETE_STATUS</code>.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p><code class="function">glDeleteShader</code> is available only if

the GL version is 2.0 or greater.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p><code class="constant">GL_INVALID_VALUE</code> is generated if

<em class="parameter"><code>shader</code></em> is not a value generated by

OpenGL.</p><p><code class="constant">GL_INVALID_OPERATION</code> is generated if

<code class="function">glDeleteShader</code> is executed between the

execution of

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

and the corresponding execution of

<a class="citerefentry" href="glEnd"><span class="citerefentry"><span class="refentrytitle">glEnd</span></span></a>.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p><a class="citerefentry" href="glGetAttachedShaders"><span class="citerefentry"><span class="refentrytitle">glGetAttachedShaders</span></span></a>

with the program object to be queried</p><p><a class="citerefentry" href="glGetShader"><span class="citerefentry"><span class="refentrytitle">glGetShader</span></span></a>

with arguments <em class="parameter"><code>shader</code></em> and

<code class="constant">GL_DELETE_STATUS</code></p><p><a class="citerefentry" href="glIsShader"><span class="citerefentry"><span class="refentrytitle">glIsShader</span></span></a></p></div>

{$pipelinestall}{$examples}

<div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p><a class="citerefentry" href="glCreateProgram"><span class="citerefentry"><span class="refentrytitle">glCreateProgram</span></span></a>,

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

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

<a class="citerefentry" href="glUseProgram"><span class="citerefentry"><span class="refentrytitle">glUseProgram</span></span></a></p></div><div class="refsect1" lang="en" xml:lang="en"><div id="Copyright"><h2>Copyright</h2><p>

Copyright © 2003-2005 3Dlabs Inc. Ltd.

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>