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<title>Class Poco::AbstractDelegate</title>
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<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
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<meta name="date" content="2009-11-24"/>
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<h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1>
<h1 class="template">template < class TArgs ></h1>
<h1 class="symbol">class AbstractDelegate</h1>
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<p>
<b>Library:</b> Foundation<br />
<b>Package:</b> Events<br />
<b>Header:</b> Poco/AbstractDelegate.h</p>
<h2>Description</h2>
<div class="description">
<p>Interface for <a href="Poco.Delegate.html" title="class Poco::Delegate">Delegate</a> and <a href="Poco.Expire.html" title="class Poco::Expire">Expire</a> Very similar to <a href="Poco.AbstractPriorityDelegate.html" title="class Poco::AbstractPriorityDelegate">AbstractPriorityDelegate</a> but having two separate files (no inheritance) allows one to have compile-time checks when registering an observer instead of run-time checks. </p>
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<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.AbstractDelegate.html#3252" title="Poco::AbstractDelegate::clone()">clone</a>, <a href="Poco.AbstractDelegate.html#3249" title="Poco::AbstractDelegate::notify()">notify</a>, <a href="Poco.AbstractDelegate.html#3253" title="Poco::AbstractDelegate::operator <()">operator <</a>, <a href="Poco.AbstractDelegate.html#3255" title="Poco::AbstractDelegate::target()">target</a></p>
<h2>Constructors</h2>
<h3><a name="3244">AbstractDelegate</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.AbstractDelegate.html" title="class Poco::AbstractDelegate">AbstractDelegate</a>(<br /> void * pTarget<br />);</p>
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<p></p>
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<h3><a name="3246">AbstractDelegate</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.AbstractDelegate.html" title="class Poco::AbstractDelegate">AbstractDelegate</a>(<br /> const <a href="Poco.AbstractDelegate.html" title="class Poco::AbstractDelegate">AbstractDelegate</a> & del<br />);</p>
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<p></p>
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<h2>Destructor</h2>
<h3><a name="3248">~AbstractDelegate</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual ~<a href="Poco.AbstractDelegate.html" title="class Poco::AbstractDelegate">AbstractDelegate</a>();</p>
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<p></p>
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<h2>Member Functions</h2>
<h3><a name="3252">clone</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual <a href="Poco.AbstractDelegate.html" title="class Poco::AbstractDelegate">AbstractDelegate</a> * clone() const = 0;</p>
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<p>Returns a deep-copy of the <a href="Poco.AbstractDelegate.html" title="class Poco::AbstractDelegate">AbstractDelegate</a> </p>
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<h3><a name="3249">notify</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool notify(<br /> const void * sender,<br /> TArgs & arguments<br />) = 0;</p>
<div class="description">
<p>Returns false, if the <a href="Poco.Delegate.html" title="class Poco::Delegate">Delegate</a> is no longer valid, thus indicating an expire </p>
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<h3><a name="3253">operator <</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">bool operator < (<br /> const <a href="Poco.AbstractDelegate.html" title="class Poco::AbstractDelegate">AbstractDelegate</a> < TArgs > & other<br />) const;</p>
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<p>For comparing AbstractDelegates in a collection. </p>
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<h3><a name="3255">target</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void * target() const;</p>
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<p></p>
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<h2>Variables</h2>
<h3><a name="3256">_pTarget</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void * _pTarget;</p>
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<p></p>
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<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>
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