| 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>glGetRenderbufferParameteriv - 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="glGetRenderbufferParameter"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetRenderbufferParameteriv — retrieve information about a bound renderbuffer 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">glGetRenderbufferParameteriv</b>(</code></td><td>GLenum </td><td><var class="pdparam">target</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>target</code></em></span></dt><dd><p> |
| 5 | Specifies the target of the query operation. <em class="parameter"><code>target</code></em> must be <code class="constant">GL_RENDERBUFFER</code>. |
| 6 | </p></dd><dt><span class="term"><em class="parameter"><code>pname</code></em></span></dt><dd><p> |
| 7 | Specifies the parameter whose value to retrieve from the renderbuffer bound to <em class="parameter"><code>target</code></em>. |
| 8 | </p></dd><dt><span class="term"><em class="parameter"><code>params</code></em></span></dt><dd><p> |
| 9 | Specifies the address of an array to receive the value of the queried parameter. |
| 10 | </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> |
| 11 | <code class="function">glGetRenderbufferParameteriv</code> retrieves information about a bound renderbuffer object. <em class="parameter"><code>target</code></em> |
| 12 | specifies the target of the query operation and must be <code class="constant">GL_RENDERBUFFER</code>. <em class="parameter"><code>pname</code></em> specifies |
| 13 | the parameter whose value to query and must be one of <code class="constant">GL_RENDERBUFFER_WIDTH</code>, <code class="constant">GL_RENDERBUFFER_HEIGHT</code>, |
| 14 | <code class="constant">GL_RENDERBUFFER_INTERNAL_FORMAT</code>, <code class="constant">GL_RENDERBUFFER_RED_SIZE</code>, <code class="constant">GL_RENDERBUFFER_GREEN_SIZE</code>, |
| 15 | <code class="constant">GL_RENDERBUFFER_BLUE_SIZE</code>, <code class="constant">GL_RENDERBUFFER_ALPHA_SIZE</code>, <code class="constant">GL_RENDERBUFFER_DEPTH_SIZE</code>, |
| 16 | <code class="constant">GL_RENDERBUFFER_DEPTH_SIZE</code>, <code class="constant">GL_RENDERBUFFER_STENCIL_SIZE</code>, or <code class="constant">GL_RENDERBUFFER_SAMPLES</code>. |
| 17 | </p><p> |
| 18 | Upon a successful return from <code class="function">glGetRenderbufferParameteriv</code>, if <em class="parameter"><code>pname</code></em> is <code class="constant">GL_RENDERBUFFER_WIDTH</code>, |
| 19 | <code class="constant">GL_RENDERBUFFER_HEIGHT</code>, <code class="constant">GL_RENDERBUFFER_INTERNAL_FORMAT</code>, or <code class="constant">GL_RENDERBUFFER_SAMPLES</code>, |
| 20 | then <em class="parameter"><code>params</code></em> will contain the width in pixels, the height in pixels, the internal format, or the number of samples, respectively, |
| 21 | of the image of the renderbuffer currently bound to <em class="parameter"><code>target</code></em>. |
| 22 | </p><p> |
| 23 | If <em class="parameter"><code>pname</code></em> is <code class="constant">GL_RENDERBUFFER_RED_SIZE</code>, <code class="constant">GL_RENDERBUFFER_GREEN_SIZE</code>, |
| 24 | <code class="constant">GL_RENDERBUFFER_BLUE_SIZE</code>, <code class="constant">GL_RENDERBUFFER_ALPHA_SIZE</code>, <code class="constant">GL_RENDERBUFFER_DEPTH_SIZE</code>, |
| 25 | or <code class="constant">GL_RENDERBUFFER_STENCIL_SIZE</code>, then <em class="parameter"><code>params</code></em> will contain the actual resolutions (not the resolutions |
| 26 | specified when the image array was defined) for the red, green, blue, alpha depth, or stencil components, respectively, of the image of the |
| 27 | renderbuffer currently bound to <em class="parameter"><code>target</code></em>. |
| 28 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p> |
| 29 | <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>pname</code></em> is not one of the accepted tokens. |
| 30 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> |
| 31 | <a href="glGenRenderbuffers.xml"><span class="citerefentry"><span class="refentrytitle">glGenRenderbuffers</span></span></a>, |
| 32 | <a href="glFramebufferRenderbuffer.xml"><span class="citerefentry"><span class="refentrytitle">glFramebufferRenderbuffer</span></span></a>, |
| 33 | <a href="glBindRenderbuffer.xml"><span class="citerefentry"><span class="refentrytitle">glBindRenderbuffer</span></span></a>, |
| 34 | <a href="glRenderbufferStorage.xml"><span class="citerefentry"><span class="refentrytitle">glRenderbufferStorage</span></span></a>, |
| 35 | <a href="glRenderbufferStorageMultisample.xml"><span class="citerefentry"><span class="refentrytitle">glRenderbufferStorageMultisample</span></span></a> |
| 36 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> |
| 37 | Copyright <span class="trademark"></span>© 2010 Khronos Group. |
| 38 | This material may be distributed subject to the terms and conditions set forth in |
| 39 | the Open Publication License, v 1.0, 8 June 1999. |
| 40 | <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>. |
| 41 | </p></div></div></body></html> |