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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=
"glGetObjectLabel"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glGetObjectLabel — retrieve the label of a named object identified within a namespace
</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">glGetObjectLabel
</b>(
</code></td><td>GLenum
</td><td><var class=
"pdparam">identifier
</var>,
</td></tr><tr><td> </td><td>GLuint
</td><td><var class=
"pdparam">name
</var>,
</td></tr><tr><td> </td><td>GLsizei
</td><td><var class=
"pdparam">bifSize
</var>,
</td></tr><tr><td> </td><td>GLsizei *
</td><td><var class=
"pdparam">length
</var>,
</td></tr><tr><td> </td><td>char *
</td><td><var class=
"pdparam">label
</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>identifier
</code></em></span></dt><dd><p>
5 The namespace from which the name of the object is allocated.
6 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>name
</code></em></span></dt><dd><p>
7 The name of the object whose label to retrieve.
8 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>bufSize
</code></em></span></dt><dd><p>
9 The length of the buffer whose address is in
<em class=
"parameter"><code>label
</code></em>.
10 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>length
</code></em></span></dt><dd><p>
11 The address of a variable to receive the length of the object label.
12 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>label
</code></em></span></dt><dd><p>
13 The address of a string that will receive the object label.
14 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
15 <code class=
"function">glGetObjectLabel
</code> retrieves the label of the object identified by
16 <em class=
"parameter"><code>name
</code></em> within the namespace given by
<em class=
"parameter"><code>identifier
</code></em>.
17 <em class=
"parameter"><code>identifier
</code></em> must be one of
<code class=
"constant">GL_BUFFER
</code>,
<code class=
"constant">GL_SHADER
</code>,
18 <code class=
"constant">GL_PROGRAM
</code>,
<code class=
"constant">GL_VERTEX_ARRAY
</code>,
<code class=
"constant">GL_QUERY
</code>,
19 <code class=
"constant">GL_PROGRAM_PIPELINE
</code>,
<code class=
"constant">GL_TRANSFORM_FEEDBACK
</code>,
<code class=
"constant">GL_SAMPLER
</code>,
20 <code class=
"constant">GL_TEXTURE
</code>,
<code class=
"constant">GL_RENDERBUFFER
</code>,
<code class=
"constant">GL_FRAMEBUFFER
</code>,
21 to indicate the namespace containing the names of buffers, shaders, programs, vertex array objects, query objects,
22 program pipelines, transform feedback objects, samplers, textures, renderbuffers and frame
23 buffers, respectively.
25 <em class=
"parameter"><code>label
</code></em> is the address of a string that will be used to store the object label.
26 <em class=
"parameter"><code>bufSize
</code></em> specifies the number of characters in the array identified by
<em class=
"parameter"><code>label
</code></em>.
27 <em class=
"parameter"><code>length
</code></em> contains the address of a variable which will receive the the number of characters in the object label.
28 If
<em class=
"parameter"><code>length
</code></em> is NULL, then it is ignored and no data is written. Likewise, if
<em class=
"parameter"><code>label
</code></em>
29 is NULL, or if
<em class=
"parameter"><code>bufSize
</code></em> is zero then no data is written to
<em class=
"parameter"><code>label
</code></em>.
30 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"errors"></a><h2>Errors
</h2><p>
31 <code class=
"constant">GL_INVALID_ENUM
</code> is generated if
<em class=
"parameter"><code>identifier
</code></em>
32 is not one of the accepted object types.
34 <code class=
"constant">GL_INVALID_OPERATION
</code> is generated if
<em class=
"parameter"><code>name
</code></em>
35 is not the name of an existing object of the type specified by
<em class=
"parameter"><code>identifier
</code></em>.
37 <code class=
"constant">GL_INVALID_VALUE
</code> is generated if
<em class=
"parameter"><code>bufSize
</code></em> is
40 If not NULL,
<em class=
"parameter"><code>length
</code></em> and
<em class=
"parameter"><code>label
</code></em> should be addresses
41 to which the client has write access, otherwise undefined behavior, including process termination
43 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"associatedgets"></a><h2>Associated Gets
</h2><p>
44 <a href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a> with argument
<code class=
"constant">GL_MAX_LABEL_LENGTH
</code>.
45 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
46 <a href=
"glPushDebugGroup.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glPushDebugGroup
</span></span></a>,
47 <a href=
"glPopDebugGroup.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glPopDebugGroup
</span></span></a>,
48 <a href=
"glObjectLabel.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glObjectLabel
</span></span></a>,
49 <a href=
"glGetObjectPtrLabel.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetObjectPtrLabel
</span></span></a>.
50 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
51 Copyright
<span class=
"trademark"></span>©
2012 Khronos Group.
52 This material may be distributed subject to the terms and conditions set forth in
53 the Open Publication License, v
1.0,
8 June
1999.
54 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
55 </p></div></div></body></html>