File: Poco.BasicEvent.html

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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<title>Class Poco::BasicEvent</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="language" content="en"/>
<meta name="date" content="2009-11-24"/>
<meta name="generator" content="PocoDoc"/>
<link rel="stylesheet" href="css/styles.css" type="text/css"/>
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<div class="header">
<h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1>
<h1 class="template">template &lt; class TArgs &gt;</h1>
<h1 class="symbol">class BasicEvent</h1>
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<div class="body">
<p>
<b>Library:</b> Foundation<br />
<b>Package:</b> Events<br />
<b>Header:</b> Poco/BasicEvent.h</p>
<h2>Description</h2>
<div class="description">
<p>A <a href="Poco.BasicEvent.html" title="class Poco::BasicEvent">BasicEvent</a> uses internally a <a href="Poco.DefaultStrategy.html" title="class Poco::DefaultStrategy">DefaultStrategy</a> which  invokes delegates in an arbitrary manner. Note that one object can only register one method to a <a href="Poco.BasicEvent.html" title="class Poco::BasicEvent">BasicEvent</a>. Subsequent registrations will overwrite the existing delegate. For example: </p>
<pre>BasicEvent&lt;int&gt; event;
MyClass myObject;
event += delegate(&amp;myObject, &amp;MyClass::myMethod1);
event += delegate(&amp;myObject, &amp;MyClass::myMethod2);
</pre>
<p>The second registration will overwrite the first one. The reason is simply that function pointers can only be compared by equality but not by lower than. </p>
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<h2>Inheritance</h2>
<p><b>Direct Base Classes: </b>AbstractEvent&nbsp;&lt;&nbsp;TArgs,&nbsp;DefaultStrategy&nbsp;&lt;&nbsp;TArgs,&nbsp;AbstractDelegate&nbsp;&lt;&nbsp;TArgs&nbsp;&gt;,&nbsp;p_less&nbsp;&lt;&nbsp;AbstractDelegate&nbsp;&lt;&nbsp;TArgs&nbsp;&gt;&nbsp;&gt;&nbsp;&gt;,&nbsp;AbstractDelegate&nbsp;&lt;&nbsp;TArgs&nbsp;&gt;&nbsp;&gt;</p>
<p><b>All Base Classes: </b>AbstractEvent&nbsp;&lt;&nbsp;TArgs,&nbsp;DefaultStrategy&nbsp;&lt;&nbsp;TArgs,&nbsp;AbstractDelegate&nbsp;&lt;&nbsp;TArgs&nbsp;&gt;,&nbsp;p_less&nbsp;&lt;&nbsp;AbstractDelegate&nbsp;&lt;&nbsp;TArgs&nbsp;&gt;&nbsp;&gt;&nbsp;&gt;,&nbsp;AbstractDelegate&nbsp;&lt;&nbsp;TArgs&nbsp;&gt;&nbsp;&gt;</p>
<h2>Constructors</h2>
<h3><a name="3802">BasicEvent</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.BasicEvent.html" title="class Poco::BasicEvent">BasicEvent</a>();</p>
<div class="description">
<p></p>
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<h2>Destructor</h2>
<h3><a name="3803">~BasicEvent</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">~<a href="Poco.BasicEvent.html" title="class Poco::BasicEvent">BasicEvent</a>();</p>
<div class="description">
<p></p>
</div>
<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright &copy; 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>

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