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"Content-Type" content=
"text/html; charset=UTF-8" /><title>glIsShader
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.73.2" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glIsShader"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glIsShader — Determines if a name corresponds to a shader 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">GLboolean
<b class=
"fsfunc">glIsShader
</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 a potential shader object.
</p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p><code class=
"function">glIsShader
</code> returns
4 <code class=
"constant">GL_TRUE
</code> if
<em class=
"parameter"><code>shader
</code></em> is
5 the name of a shader object previously created with
6 <a class=
"citerefentry" href=
"glCreateShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glCreateShader
</span></span></a>
7 and not yet deleted with
<a class=
"citerefentry" href=
"glDeleteShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteShader
</span></span></a>.
8 If
<em class=
"parameter"><code>shader
</code></em> is
9 zero or a non-zero value that is not the name of a shader
10 object, or if an error occurs,
<code class=
"function">glIsShader
</code> returns
11 <code class=
"constant">GL_FALSE
</code>.
</p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"notes"></a><h2>Notes
</h2><p><code class=
"function">glIsShader
</code> is available only if the
12 GL version is
2.0 or greater.
</p><p>No error is generated if
<em class=
"parameter"><code>shader
</code></em> is
13 not a valid shader object name.
</p><p>A shader object marked for deletion with
<a class=
"citerefentry" href=
"glDeleteShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteShader
</span></span></a>
14 but still attached to a program object is still considered
15 a shader object and
<code class=
"function">glIsShader
</code> will return
<code class=
"constant">GL_TRUE
</code>.
</p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"errors"></a><h2>Errors
</h2><p><code class=
"constant">GL_INVALID_OPERATION
</code> is generated if
16 <code class=
"function">glIsShader
</code> is executed between the
18 <a class=
"citerefentry" href=
"glBegin.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBegin
</span></span></a>
19 and the corresponding execution of
20 <a class=
"citerefentry" href=
"glEnd.xml"><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.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetAttachedShaders
</span></span></a>
21 with a valid program object
</p><p><a class=
"citerefentry" href=
"glGetShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetShader
</span></span></a>
22 with arguments
<em class=
"parameter"><code>shader
</code></em> and a parameter to
23 be queried
</p><p><a class=
"citerefentry" href=
"glGetShaderInfoLog.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetShaderInfoLog
</span></span></a>
24 with argument
<em class=
"parameter"><code>object
</code></em></p><p><a class=
"citerefentry" href=
"glGetShaderSource.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetShaderSource
</span></span></a>
25 with argument
<em class=
"parameter"><code>object
</code></em></p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p><a class=
"citerefentry" href=
"glAttachShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glAttachShader
</span></span></a>,
26 <a class=
"citerefentry" href=
"glCompileShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glCompileShader
</span></span></a>,
27 <a class=
"citerefentry" href=
"glCreateShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glCreateShader
</span></span></a>,
28 <a class=
"citerefentry" href=
"glDeleteShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteShader
</span></span></a>,
29 <a class=
"citerefentry" href=
"glDetachShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDetachShader
</span></span></a>,
30 <a class=
"citerefentry" href=
"glLinkProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glLinkProgram
</span></span></a>,
31 <a class=
"citerefentry" href=
"glShaderSource.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glShaderSource
</span></span></a></p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
32 Copyright
<span class=
"trademark"></span>©
2003-
2005 3Dlabs Inc. Ltd.
33 This material may be distributed subject to the terms and conditions set forth in
34 the Open Publication License, v
1.0,
8 June
1999.
35 <a class=
"ulink" href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
36 </p></div></div></body></html>