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<?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" /><title>glGenQueries</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div class="refentry" title="glGenQueries"><a id="glGenQueries"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGenQueries — generate query object names</p></div><div class="refsynopsisdiv" title="C Specification"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">glGenQueries</b>(</code></td><td>GLsizei <var class="pdparam">n</var>, </td></tr><tr><td> </td><td>GLuint * <var class="pdparam">ids</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Parameters"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>n</code></em></span></dt><dd><p>
                    Specifies the number of query object names to be generated.
                </p></dd><dt><span class="term"><em class="parameter"><code>ids</code></em></span></dt><dd><p>
                    Specifies an array in which the generated query object names are stored.
                </p></dd></dl></div></div><div class="refsect1" title="Description"><a id="description"></a><h2>Description</h2><p>
            <code class="function">glGenQueries</code> returns <em class="parameter"><code>n</code></em> query object names in <em class="parameter"><code>ids</code></em>.
            There is no guarantee that the names form a contiguous set of integers;
            however, it is guaranteed that none of the returned names was in use
            immediately before the call to <code class="function">glGenQueries</code>.
        </p><p>
            Query object names returned by a call to <code class="function">glGenQueries</code> are not returned by
            subsequent calls, unless they are first deleted with
            <a class="citerefentry" href="glDeleteQueries.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteQueries</span></span></a>.  
        </p><p>
            No query objects are associated with the returned query object names until they are first used by calling
            <a class="citerefentry" href="glBeginQuery.xml"><span class="citerefentry"><span class="refentrytitle">glBeginQuery</span></span></a>.
        </p></div><div class="refsect1" title="Notes"><a id="notes"></a><h2>Notes</h2><p>
            <code class="function">glGenQueries</code> is available only if the GL version is 1.5 or greater.
        </p></div><div class="refsect1" title="Errors"><a id="errors"></a><h2>Errors</h2><p>
            <code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>n</code></em> is negative.
        </p><p>
            <code class="constant">GL_INVALID_OPERATION</code> is generated if <code class="function">glGenQueries</code> is executed
            between the execution of <a class="citerefentry" href="glBegin.xml"><span class="citerefentry"><span class="refentrytitle">glBegin</span></span></a> and the corresponding
            execution of <a class="citerefentry" href="glEnd.xml"><span class="citerefentry"><span class="refentrytitle">glEnd</span></span></a>.
        </p></div><div class="refsect1" title="Associated Gets"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
            <a class="citerefentry" href="glIsQuery.xml"><span class="citerefentry"><span class="refentrytitle">glIsQuery</span></span></a>
        </p></div><div class="refsect1" title="See Also"><a id="seealso"></a><h2>See Also</h2><p>
            <a class="citerefentry" href="glBeginQuery.xml"><span class="citerefentry"><span class="refentrytitle">glBeginQuery</span></span></a>,
            <a class="citerefentry" href="glDeleteQueries.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteQueries</span></span></a>,
            <a class="citerefentry" href="glEndQuery.xml"><span class="citerefentry"><span class="refentrytitle">glEndQuery</span></span></a>
        </p></div><div class="refsect1" title="Copyright"><a id="Copyright"></a><h2>Copyright</h2><p>
            Copyright <span class="trademark"></span>© 2005 Addison-Wesley. 
            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>
