1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd">
<?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>glGetQueryiv - OpenGL 4 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /></head><body><div class="refentry"><a id="glGetQueryiv"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetQueryiv — return parameters of a query object target</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void <strong class="fsfunc">glGetQueryiv</strong>(</code></td><td>GLenum <var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLenum <var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint * <var class="pdparam">params</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>target</code></em></span></dt><dd><p>
Specifies a query object target.
Must be <code class="constant">GL_SAMPLES_PASSED</code>, <code class="constant">GL_ANY_SAMPLES_PASSED</code>, <code class="constant">GL_ANY_SAMPLES_PASSED_CONSERVATIVE</code>
<code class="constant">GL_PRIMITIVES_GENERATED</code>, <code class="constant">GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN</code>,
<code class="constant">GL_TIME_ELAPSED</code>, or <code class="constant">GL_TIMESTAMP</code>.
</p></dd><dt><span class="term"><em class="parameter"><code>pname</code></em></span></dt><dd><p>
Specifies the symbolic name of a query object target parameter.
Accepted values are <code class="constant">GL_CURRENT_QUERY</code> or <code class="constant">GL_QUERY_COUNTER_BITS</code>.
</p></dd><dt><span class="term"><em class="parameter"><code>params</code></em></span></dt><dd><p>
Returns the requested data.
</p></dd></dl></div></div><div class="refsect1"><a id="description"></a><h2>Description</h2><p>
<code class="function">glGetQueryiv</code> returns in <em class="parameter"><code>params</code></em> a selected parameter of the query object target
specified by <em class="parameter"><code>target</code></em>.
</p><p>
<em class="parameter"><code>pname</code></em> names a specific query object target parameter. When <em class="parameter"><code>pname</code></em> is
<code class="constant">GL_CURRENT_QUERY</code>, the name of the currently active query for <em class="parameter"><code>target</code></em>,
or zero if no query is active, will be placed in <em class="parameter"><code>params</code></em>.
If <em class="parameter"><code>pname</code></em> is <code class="constant">GL_QUERY_COUNTER_BITS</code>, the implementation-dependent number
of bits used to hold the result of queries for <em class="parameter"><code>target</code></em> is returned in <em class="parameter"><code>params</code></em>.
</p></div><div class="refsect1"><a id="notes"></a><h2>Notes</h2><p>
The target <code class="constant">GL_ANY_SAMPLES_PASSED_CONSERVATIVE</code> is available only if the GL version is 4.3 or greater.
</p><p>
If an error is generated,
no change is made to the contents of <em class="parameter"><code>params</code></em>.
</p></div><div class="refsect1"><a id="errors"></a><h2>Errors</h2><p>
<code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>target</code></em> or <em class="parameter"><code>pname</code></em> is not an
accepted value.
</p></div><div class="refsect1"><a id="seealso"></a><h2>See Also</h2><p>
<a class="citerefentry" href="glGetQueryObject.xml"><span class="citerefentry"><span class="refentrytitle">glGetQueryObject</span></span></a>,
<a class="citerefentry" href="glIsQuery.xml"><span class="citerefentry"><span class="refentrytitle">glIsQuery</span></span></a>
</p></div><div class="refsect1"><a id="Copyright"></a><h2>Copyright</h2><p>
Copyright <span class="trademark"></span>© 2005 Addison-Wesley.
Copyright <span class="trademark"></span>© 2010-2013 Khronos Group.
This material may be distributed subject to the terms and conditions set forth in
the Open Publication License, v 1.0, 8 June 1999.
<a class="ulink" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
</p></div></div></body></html>
|
