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4 Reference Pages
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.69.1" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glIsProgram"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glIsProgram — Determines if a name corresponds to a program object
</p></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><p><code class=
"funcdef">GLboolean
<b class=
"fsfunc">glIsProgram
</b>(
</code>GLuint
<var class=
"pdparam">program
</var><code>)
</code>;
</p></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 a potential program 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">glIsProgram
</code> returns
5 <code class=
"constant">GL_TRUE
</code> if
<em class=
"parameter"><code>program
</code></em>
6 is the name of a program object previously created with
7 <a href=
"glCreateProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glCreateProgram
</span></span></a>
8 and not yet deleted with
<a href=
"glDeleteProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteProgram
</span></span></a>.
9 If
<em class=
"parameter"><code>program
</code></em> is zero or a non-zero value that
10 is not the name of a program object, or if an error occurs,
11 <code class=
"function">glIsProgram
</code> returns
<code class=
"constant">GL_FALSE
</code>.
</p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"notes"></a><h2>Notes
</h2><p>No error is generated if
<em class=
"parameter"><code>program
</code></em> is
12 not a valid program object name.
</p><p>A program object marked for deletion with
<a href=
"glDeleteProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteProgram
</span></span></a>
13 but still in use as part of current rendering state is still considered
14 a program object and
<code class=
"function">glIsProgram
</code> will return
<code class=
"constant">GL_TRUE
</code>.
</p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"associatedgets"></a><h2>Associated Gets
</h2><p><a href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a>
15 with the argument
<code class=
"constant">GL_CURRENT_PROGRAM
</code></p><p><a href=
"glGetActiveAttrib.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetActiveAttrib
</span></span></a>
16 with arguments
<em class=
"parameter"><code>program
</code></em> and the index of
17 an active attribute variable
</p><p><a href=
"glGetActiveUniform.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetActiveUniform
</span></span></a>
18 with arguments
<em class=
"parameter"><code>program
</code></em> and the index of
19 an active uniform variable
</p><p><a href=
"glGetAttachedShaders.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetAttachedShaders
</span></span></a>
20 with argument
<em class=
"parameter"><code>program
</code></em></p><p><a href=
"glGetAttribLocation.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetAttribLocation
</span></span></a>
21 with arguments
<em class=
"parameter"><code>program
</code></em> and the name of an
22 attribute variable
</p><p><a href=
"glGetProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetProgram
</span></span></a>
23 with arguments
<em class=
"parameter"><code>program
</code></em> and the parameter
24 to be queried
</p><p><a href=
"glGetProgramInfoLog.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetProgramInfoLog
</span></span></a>
25 with argument
<em class=
"parameter"><code>program
</code></em></p><p><a href=
"glGetUniform.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetUniform
</span></span></a>
26 with arguments
<em class=
"parameter"><code>program
</code></em> and the location
27 of a uniform variable
</p><p><a href=
"glGetUniformLocation.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetUniformLocation
</span></span></a>
28 with arguments
<em class=
"parameter"><code>program
</code></em> and the name of a
29 uniform variable
</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>,
30 <a href=
"glBindAttribLocation.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBindAttribLocation
</span></span></a>,
31 <a href=
"glCreateProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glCreateProgram
</span></span></a>,
32 <a href=
"glDeleteProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDeleteProgram
</span></span></a>,
33 <a href=
"glDetachShader.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDetachShader
</span></span></a>,
34 <a href=
"glLinkProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glLinkProgram
</span></span></a>,
35 <a href=
"glUniform.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glUniform
</span></span></a>,
36 <a href=
"glUseProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glUseProgram
</span></span></a>,
37 <a href=
"glValidateProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glValidateProgram
</span></span></a></p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
38 Copyright
<span class=
"trademark"></span>©
2003-
2005 3Dlabs Inc. Ltd.
39 This material may be distributed subject to the terms and conditions set forth in
40 the Open Publication License, v
1.0,
8 June
1999.
41 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
42 </p></div></div></body></html>