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1 | <?xml version="1.0" encoding="UTF-8"?> |
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4 | <?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>glGetShader - OpenGL 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="glGetShader"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetShaderiv — Returns a parameter from 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">void <b class="fsfunc">glGetShaderiv</b>(</code></td><td>GLuint </td><td><var class="pdparam">shader</var>, </td></tr><tr><td> </td><td>GLenum </td><td><var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint * </td><td><var class="pdparam">params</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 | |
5 | queried.</p></dd><dt><span class="term"><em class="parameter"><code>pname</code></em></span></dt><dd><p>Specifies the object parameter. Accepted | |
6 | symbolic names are | |
7 | <code class="constant">GL_SHADER_TYPE</code>, | |
8 | <code class="constant">GL_DELETE_STATUS</code>, | |
9 | <code class="constant">GL_COMPILE_STATUS</code>, | |
10 | <code class="constant">GL_INFO_LOG_LENGTH</code>, | |
11 | <code class="constant">GL_SHADER_SOURCE_LENGTH</code>.</p></dd><dt><span class="term"><em class="parameter"><code>params</code></em></span></dt><dd><p>Returns the requested object parameter.</p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p><code class="function">glGetShader</code> | |
12 | returns in <em class="parameter"><code>params</code></em> | |
13 | the value of a parameter for a specific shader object. The | |
14 | following parameters are defined:</p><div class="variablelist"><dl><dt><span class="term"><code class="constant">GL_SHADER_TYPE</code></span></dt><dd><p> <em class="parameter"><code>params</code></em> returns | |
15 | <code class="constant">GL_VERTEX_SHADER</code> if | |
16 | <em class="parameter"><code>shader</code></em> is a vertex shader | |
17 | object, <code class="constant">GL_GEOMETRY_SHADER</code> if <em class="parameter"><code>shader</code></em> | |
18 | is a geometry shader object, and <code class="constant">GL_FRAGMENT_SHADER</code> | |
19 | if <em class="parameter"><code>shader</code></em> is a fragment | |
20 | shader object.</p></dd><dt><span class="term"><code class="constant">GL_DELETE_STATUS</code></span></dt><dd><p> <em class="parameter"><code>params</code></em> returns | |
21 | <code class="constant">GL_TRUE</code> if | |
22 | <em class="parameter"><code>shader</code></em> is currently flagged | |
23 | for deletion, and <code class="constant">GL_FALSE</code> | |
24 | otherwise.</p></dd><dt><span class="term"><code class="constant">GL_COMPILE_STATUS</code></span></dt><dd><p> <em class="parameter"><code>params</code></em> returns | |
25 | <code class="constant">GL_TRUE</code> if the last compile | |
26 | operation on <em class="parameter"><code>shader</code></em> was | |
27 | successful, and <code class="constant">GL_FALSE</code> | |
28 | otherwise.</p></dd><dt><span class="term"><code class="constant">GL_INFO_LOG_LENGTH</code></span></dt><dd><p> <em class="parameter"><code>params</code></em> returns the | |
29 | number of characters in the information log for | |
30 | <em class="parameter"><code>shader</code></em> including the null | |
31 | termination character (i.e., the size of the | |
32 | character buffer required to store the information | |
33 | log). If <em class="parameter"><code>shader</code></em> has no | |
34 | information log, a value of 0 is returned.</p></dd><dt><span class="term"><code class="constant">GL_SHADER_SOURCE_LENGTH</code></span></dt><dd><p> <em class="parameter"><code>params</code></em> returns the | |
35 | length of the concatenation of the source strings | |
36 | that make up the shader source for the | |
37 | <em class="parameter"><code>shader</code></em>, including the null | |
38 | termination character. (i.e., the size of the | |
39 | character buffer required to store the shader | |
40 | source). If no source code exists, 0 is | |
41 | returned.</p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>If an error is generated, no change is made to the | |
42 | contents of <em class="parameter"><code>params</code></em>.</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 | |
43 | <em class="parameter"><code>shader</code></em> is not a value generated by | |
44 | OpenGL.</p><p><code class="constant">GL_INVALID_OPERATION</code> is generated if | |
45 | <em class="parameter"><code>shader</code></em> does not refer to a shader | |
46 | object.</p><p><code class="constant">GL_INVALID_ENUM</code> is generated if | |
47 | <em class="parameter"><code>pname</code></em> is not an accepted value.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p><a href="glGetShaderInfoLog.xml"><span class="citerefentry"><span class="refentrytitle">glGetShaderInfoLog</span></span></a> | |
48 | with argument <em class="parameter"><code>shader</code></em></p><p><a href="glGetShaderSource.xml"><span class="citerefentry"><span class="refentrytitle">glGetShaderSource</span></span></a> | |
49 | with argument <em class="parameter"><code>shader</code></em></p><p><a href="glIsShader.xml"><span class="citerefentry"><span class="refentrytitle">glIsShader</span></span></a></p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p><a href="glCompileShader.xml"><span class="citerefentry"><span class="refentrytitle">glCompileShader</span></span></a>, | |
50 | <a href="glCreateShader.xml"><span class="citerefentry"><span class="refentrytitle">glCreateShader</span></span></a>, | |
51 | <a href="glDeleteShader.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteShader</span></span></a>, | |
52 | <a href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a>, | |
53 | <a 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> | |
54 | Copyright <span class="trademark"></span>© 2003-2005 3Dlabs Inc. Ltd. | |
55 | This material may be distributed subject to the terms and conditions set forth in | |
56 | the Open Publication License, v 1.0, 8 June 1999. | |
57 | <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>. | |
58 | </p></div></div></body></html> |