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<?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>glGetAttachedShaders</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glGetAttachedShaders"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetAttachedShaders — Returns the handles of the shader objects attached to a program object</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glGetAttachedShaders</b>(</code></td><td>GLuint  </td><td><var class="pdparam">program</var>, </td></tr><tr><td> </td><td>GLsizei  </td><td><var class="pdparam">maxCount</var>, </td></tr><tr><td> </td><td>GLsizei * </td><td><var class="pdparam">count</var>, </td></tr><tr><td> </td><td>GLuint * </td><td><var class="pdparam">shaders</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>program</code></em></span></dt><dd><p>Specifies the program object to be
            queried.</p></dd><dt><span class="term"><em class="parameter"><code>maxCount</code></em></span></dt><dd><p>Specifies the size of the array for storing
            the returned object names.</p></dd><dt><span class="term"><em class="parameter"><code>count</code></em></span></dt><dd><p>Returns the number of names actually returned
            in <em class="parameter"><code>objects</code></em>.</p></dd><dt><span class="term"><em class="parameter"><code>shaders</code></em></span></dt><dd><p>Specifies an array that is used to return the
            names of attached shader objects.</p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p><code class="function">glGetAttachedShaders</code> returns the
    names of the shader objects attached to
    <em class="parameter"><code>program</code></em>. The names of shader objects that
    are attached to <em class="parameter"><code>program</code></em> will be returned
    in <em class="parameter"><code>shaders.</code></em> The actual number of shader
    names written into <em class="parameter"><code>shaders</code></em> is returned in
    <em class="parameter"><code>count.</code></em> If no shader objects are attached
    to <em class="parameter"><code>program</code></em>, <em class="parameter"><code>count</code></em>
    is set to 0. The maximum number of shader names that may be
    returned in <em class="parameter"><code>shaders</code></em> is specified by
    <em class="parameter"><code>maxCount</code></em>. </p><p>If the number of names actually returned is not required
    (for instance, if it has just been obtained by calling
    <a href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a>),
    a value of <code class="constant">NULL</code> may be passed for count. If
    no shader objects are attached to
    <em class="parameter"><code>program</code></em>, a value of 0 will be returned in
    <em class="parameter"><code>count</code></em>. The actual number of attached
    shaders can be obtained by calling
    <a href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a>
    with the value <code class="constant">GL_ATTACHED_SHADERS</code>.</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>program</code></em> is not a value generated by
    OpenGL.</p><p><code class="constant">GL_INVALID_OPERATION</code> is generated if
    <em class="parameter"><code>program</code></em> is not a program object.</p><p><code class="constant">GL_INVALID_VALUE</code> is generated if
    <em class="parameter"><code>maxCount</code></em> is less than 0.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p><a href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a>
    with argument <code class="constant">GL_ATTACHED_SHADERS</code></p><p><a href="glIsProgram.xml"><span class="citerefentry"><span class="refentrytitle">glIsProgram</span></span></a></p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p><a href="glAttachShader.xml"><span class="citerefentry"><span class="refentrytitle">glAttachShader</span></span></a>,
    <a href="glDetachShader.xml"><span class="citerefentry"><span class="refentrytitle">glDetachShader</span></span></a></p>.
    </div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
            Copyright <span class="trademark"></span>© 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 href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
        </p></div></div></body></html>
