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<li class="navelem"><a class="el" href="namespacelout.html">lout</a></li><li class="navelem"><a class="el" href="namespacelout_1_1signal.html">signal</a></li><li class="navelem"><a class="el" href="classlout_1_1signal_1_1Emitter.html">Emitter</a></li> </ul>
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<a href="classlout_1_1signal_1_1Emitter.html#pub-methods">Public Member Functions</a> |
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<div class="title">lout::signal::Emitter Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div>
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<p>The base class for signal emitters.
<a href="classlout_1_1signal_1_1Emitter.html#details">More...</a></p>
<p><code>#include <<a class="el" href="signal_8hh_source.html">signal.hh</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a4e5b4d84cb7f3a9eba528c3ba10433f6"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#a4e5b4d84cb7f3a9eba528c3ba10433f6">Emitter</a> ()</td></tr>
<tr class="separator:a4e5b4d84cb7f3a9eba528c3ba10433f6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4563ffc4d2f7979e13a33428cc73a3f9"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#a4563ffc4d2f7979e13a33428cc73a3f9">~Emitter</a> ()</td></tr>
<tr class="separator:a4563ffc4d2f7979e13a33428cc73a3f9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a56aae9d952becd97a362826f67b29771"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#a56aae9d952becd97a362826f67b29771">intoStringBuffer</a> (<a class="el" href="classlout_1_1misc_1_1StringBuffer.html">misc::StringBuffer</a> *sb)</td></tr>
<tr class="memdesc:a56aae9d952becd97a362826f67b29771"><td class="mdescLeft"> </td><td class="mdescRight">Store a textual representation of the object in a <a class="el" href="classlout_1_1misc_1_1StringBuffer.html" title="A class for fast concatenation of a large number of strings. ">misc::StringBuffer</a>. <a href="classlout_1_1signal_1_1Emitter.html#a56aae9d952becd97a362826f67b29771">More...</a><br /></td></tr>
<tr class="separator:a56aae9d952becd97a362826f67b29771"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classlout_1_1object_1_1Object"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classlout_1_1object_1_1Object')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classlout_1_1object_1_1Object.html">lout::object::Object</a></td></tr>
<tr class="memitem:a9fef8a29a41124cb0370f4dc0410fb5b inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#a9fef8a29a41124cb0370f4dc0410fb5b">~Object</a> ()</td></tr>
<tr class="memdesc:a9fef8a29a41124cb0370f4dc0410fb5b inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">The destructor is defined as virtual (but not abstract), so that destruction of <a class="el" href="classlout_1_1object_1_1Object.html" title="This is the base class for many other classes, which defines very common virtual methods. ">Object</a>'s works properly. <a href="classlout_1_1signal_1_1Emitter.html#a9fef8a29a41124cb0370f4dc0410fb5b">More...</a><br /></td></tr>
<tr class="separator:a9fef8a29a41124cb0370f4dc0410fb5b inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af4bc95cee49a71d32c7b24505ccc9397 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#af4bc95cee49a71d32c7b24505ccc9397">equals</a> (<a class="el" href="classlout_1_1object_1_1Object.html">Object</a> *other)</td></tr>
<tr class="memdesc:af4bc95cee49a71d32c7b24505ccc9397 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Returns, whether two objects are equal. <a href="classlout_1_1signal_1_1Emitter.html#af4bc95cee49a71d32c7b24505ccc9397">More...</a><br /></td></tr>
<tr class="separator:af4bc95cee49a71d32c7b24505ccc9397 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad81c4136418c9b44253568f9ae069006 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#ad81c4136418c9b44253568f9ae069006">hashValue</a> ()</td></tr>
<tr class="memdesc:ad81c4136418c9b44253568f9ae069006 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Return a hash value for the object. <a href="classlout_1_1signal_1_1Emitter.html#ad81c4136418c9b44253568f9ae069006">More...</a><br /></td></tr>
<tr class="separator:ad81c4136418c9b44253568f9ae069006 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7ab36efad0df9a036b9252a9564a8cd4 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classlout_1_1object_1_1Object.html">Object</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#a7ab36efad0df9a036b9252a9564a8cd4">clone</a> ()</td></tr>
<tr class="memdesc:a7ab36efad0df9a036b9252a9564a8cd4 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Return an exact copy of the object. <a href="classlout_1_1signal_1_1Emitter.html#a7ab36efad0df9a036b9252a9564a8cd4">More...</a><br /></td></tr>
<tr class="separator:a7ab36efad0df9a036b9252a9564a8cd4 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad7aeadc7934293197110d550abda81ff inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#ad7aeadc7934293197110d550abda81ff">toString</a> ()</td></tr>
<tr class="memdesc:ad7aeadc7934293197110d550abda81ff inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Use <a class="el" href="classlout_1_1object_1_1Object.html#ad1ad2f2b36fc7a7bead883caa64b0082" title="Store a textual representation of the object in a misc::StringBuffer. ">object::Object::intoStringBuffer</a> to return a textual representation of the object. <a href="classlout_1_1signal_1_1Emitter.html#ad7aeadc7934293197110d550abda81ff">More...</a><br /></td></tr>
<tr class="separator:ad7aeadc7934293197110d550abda81ff inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8b53443ca61b25e794157792f5d3a956 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#a8b53443ca61b25e794157792f5d3a956">sizeOf</a> ()</td></tr>
<tr class="memdesc:a8b53443ca61b25e794157792f5d3a956 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Return the number of bytes, this object totally uses. <a href="classlout_1_1signal_1_1Emitter.html#a8b53443ca61b25e794157792f5d3a956">More...</a><br /></td></tr>
<tr class="separator:a8b53443ca61b25e794157792f5d3a956 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr class="memitem:ac6b23339bb56f6e41d32ab2788383423"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#ac6b23339bb56f6e41d32ab2788383423">emitVoid</a> (int signalNo, int argc, <a class="el" href="classlout_1_1object_1_1Object.html">Object</a> **argv)</td></tr>
<tr class="memdesc:ac6b23339bb56f6e41d32ab2788383423"><td class="mdescLeft"> </td><td class="mdescRight">Emit a void signal. <a href="classlout_1_1signal_1_1Emitter.html#ac6b23339bb56f6e41d32ab2788383423">More...</a><br /></td></tr>
<tr class="separator:ac6b23339bb56f6e41d32ab2788383423"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a86a15101d775b2065432a34ca2a8d843"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#a86a15101d775b2065432a34ca2a8d843">emitBool</a> (int signalNo, int argc, <a class="el" href="classlout_1_1object_1_1Object.html">Object</a> **argv)</td></tr>
<tr class="memdesc:a86a15101d775b2065432a34ca2a8d843"><td class="mdescLeft"> </td><td class="mdescRight">Emit a boolean signal. <a href="classlout_1_1signal_1_1Emitter.html#a86a15101d775b2065432a34ca2a8d843">More...</a><br /></td></tr>
<tr class="separator:a86a15101d775b2065432a34ca2a8d843"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1d8d542865ab33d8612ff0e586e566ab"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#a1d8d542865ab33d8612ff0e586e566ab">connect</a> (<a class="el" href="classlout_1_1signal_1_1Receiver.html">Receiver</a> *receiver)</td></tr>
<tr class="memdesc:a1d8d542865ab33d8612ff0e586e566ab"><td class="mdescLeft"> </td><td class="mdescRight">Connect a receiver to the emitter. <a href="classlout_1_1signal_1_1Emitter.html#a1d8d542865ab33d8612ff0e586e566ab">More...</a><br /></td></tr>
<tr class="separator:a1d8d542865ab33d8612ff0e586e566ab"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ada3d9ae880eff3cbf141b7adaace0aaa"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#ada3d9ae880eff3cbf141b7adaace0aaa">emitToReceiver</a> (<a class="el" href="classlout_1_1signal_1_1Receiver.html">Receiver</a> *receiver, int signalNo, int argc, <a class="el" href="classlout_1_1object_1_1Object.html">Object</a> **argv)=0</td></tr>
<tr class="memdesc:ada3d9ae880eff3cbf141b7adaace0aaa"><td class="mdescLeft"> </td><td class="mdescRight">A sub class must implement this for a call to a single receiver. <a href="classlout_1_1signal_1_1Emitter.html#ada3d9ae880eff3cbf141b7adaace0aaa">More...</a><br /></td></tr>
<tr class="separator:ada3d9ae880eff3cbf141b7adaace0aaa"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-methods"></a>
Private Member Functions</h2></td></tr>
<tr class="memitem:a5e393ee2f79ebd1c98ffceff017fb1fe"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#a5e393ee2f79ebd1c98ffceff017fb1fe">unconnect</a> (<a class="el" href="classlout_1_1signal_1_1Receiver.html">Receiver</a> *receiver)</td></tr>
<tr class="separator:a5e393ee2f79ebd1c98ffceff017fb1fe"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-attribs"></a>
Private Attributes</h2></td></tr>
<tr class="memitem:aedd4bd02aa69e65076baa7fe4cab95f7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classlout_1_1container_1_1typed_1_1List.html">container::typed::List</a><br class="typebreak" />
< <a class="el" href="classlout_1_1signal_1_1Receiver.html">Receiver</a> > * </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#aedd4bd02aa69e65076baa7fe4cab95f7">receivers</a></td></tr>
<tr class="separator:aedd4bd02aa69e65076baa7fe4cab95f7"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
Friends</h2></td></tr>
<tr class="memitem:ac6980ec23d7dc8dda9ac05a1a7abbfa5"><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1Emitter.html#ac6980ec23d7dc8dda9ac05a1a7abbfa5">Receiver</a></td></tr>
<tr class="separator:ac6980ec23d7dc8dda9ac05a1a7abbfa5"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>The base class for signal emitters. </p>
<p>If defining a signal group, a sub class of this class must be defined, with</p>
<ul>
<li>
a definition of the different signals (as enumeration), </li>
<li>
an implementation of <a class="el" href="classlout_1_1signal_1_1Emitter.html#ada3d9ae880eff3cbf141b7adaace0aaa" title="A sub class must implement this for a call to a single receiver. ">signal::Emitter::emitToReceiver</a>, </li>
<li>
wrappers for <a class="el" href="classlout_1_1signal_1_1Emitter.html#ac6b23339bb56f6e41d32ab2788383423" title="Emit a void signal. ">signal::Emitter::emitVoid</a> and <a class="el" href="classlout_1_1signal_1_1Emitter.html#a86a15101d775b2065432a34ca2a8d843" title="Emit a boolean signal. ">signal::Emitter::emitBool</a>, respectively (one for each signal), and </li>
<li>
a wrapper for <a class="el" href="classlout_1_1signal_1_1Emitter.html#a1d8d542865ab33d8612ff0e586e566ab" title="Connect a receiver to the emitter. ">signal::Emitter::connect</a>. </li>
</ul>
<p>There are two representations of signals:</p>
<ul>
<li>
<p class="startli">In the <em>unfolded</em> representation, the signal itself is represented by the method itself (in the emitter or the receiver), and the arguments are represented as normal C++ types.</p>
<p class="endli"></p>
</li>
<li>
<em>Folding</em> signals means to represent the signal itself by an integer number (enumeration), and translate the arguments in an <a class="el" href="classlout_1_1object_1_1Object.html" title="This is the base class for many other classes, which defines very common virtual methods. ">object::Object</a>* array. (If a given argument is not an instance of <a class="el" href="classlout_1_1object_1_1Object.html" title="This is the base class for many other classes, which defines very common virtual methods. ">object::Object</a>*, the wrappers in <a class="el" href="namespacelout_1_1object.html">object</a> can be used.) </li>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="namespacelout_1_1signal.html">signal</a> </dd></dl>
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<td class="memname">lout::signal::Emitter::Emitter </td>
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<p>References <a class="el" href="classlout_1_1container_1_1typed_1_1Iterator.html#a71719c6c99cf99ce3df331a08ddea953">lout::container::typed::Iterator< T >::hasNext()</a>, and <a class="el" href="classlout_1_1signal_1_1Receiver.html#a0615e948df7f178b2f80cceabdebcd33">lout::signal::Receiver::unconnectFrom()</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void lout::signal::Emitter::connect </td>
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<p>Connect a receiver to the emitter. </p>
<p>This is protected, a sub class should define a wrapper, with the respective receiver as an argument, to gain type safety. </p>
<p>References <a class="el" href="classlout_1_1signal_1_1Receiver.html#a86bf8d72677f5c1b7f2901cf093c0cfd">lout::signal::Receiver::connectTo()</a>.</p>
<p>Referenced by <a class="el" href="classdw_1_1core_1_1ui_1_1Resource_1_1ActivateEmitter.html#acd02dd41fd0500b1c19e2d926ac71778">dw::core::ui::Resource::ActivateEmitter::connectActivate()</a>, <a class="el" href="classdw_1_1core_1_1ui_1_1Resource_1_1ClickedEmitter.html#a7d7deeb1661c125fbcc75c453ce6a1a4">dw::core::ui::Resource::ClickedEmitter::connectClicked()</a>, <a class="el" href="classlout_1_1signal_1_1ObservedObject_1_1DeletionEmitter.html#ac175493c8e5a76a76d023cf3ed9eeb0f">lout::signal::ObservedObject::DeletionEmitter::connectDeletion()</a>, <a class="el" href="classdw_1_1core_1_1Layout_1_1Emitter.html#a8d662730c54938ea9f4abe44d82645ce">dw::core::Layout::Emitter::connectLayout()</a>, and <a class="el" href="classdw_1_1core_1_1Layout_1_1LinkEmitter.html#a68e447c9e075b8375285d078da11f257">dw::core::Layout::LinkEmitter::connectLink()</a>.</p>
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<td class="memname">bool lout::signal::Emitter::emitBool </td>
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<p>Emit a boolean signal. </p>
<p>This method should be called by a wrapper, which <em>folds</em> the signal, delegates the emission to here, and returns the same boolean value. </p>
<p>References <a class="el" href="classlout_1_1container_1_1typed_1_1Iterator.html#a71719c6c99cf99ce3df331a08ddea953">lout::container::typed::Iterator< T >::hasNext()</a>.</p>
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<td class="memname">virtual bool lout::signal::Emitter::emitToReceiver </td>
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<p>A sub class must implement this for a call to a single receiver. </p>
<p>This methods gets the signal in a <em>folded</em> representation, it has to unfold it, and pass it to a single receiver. For boolean signals, the return value of the receiver must be returned, for void signals, the return value is discarded. </p>
<p>Implemented in <a class="el" href="classdw_1_1core_1_1ui_1_1Resource_1_1ClickedEmitter.html#a75d6709658dd3757533cebd915ec7a19">dw::core::ui::Resource::ClickedEmitter</a>, <a class="el" href="classdw_1_1core_1_1ui_1_1Resource_1_1ActivateEmitter.html#a168662fa057599852a8a6428667cc175">dw::core::ui::Resource::ActivateEmitter</a>, <a class="el" href="classlout_1_1signal_1_1ObservedObject_1_1DeletionEmitter.html#a463d96b93f6cd85db12e7bc3261a7c7d">lout::signal::ObservedObject::DeletionEmitter</a>, <a class="el" href="classdw_1_1core_1_1Layout_1_1Emitter.html#a45a97da6bdb8fa08d90692f22cf2032e">dw::core::Layout::Emitter</a>, and <a class="el" href="classdw_1_1core_1_1Layout_1_1LinkEmitter.html#a59c60ae28c0f9f92589444187fca523b">dw::core::Layout::LinkEmitter</a>.</p>
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<p>Emit a void signal. </p>
<p>This method should be called by a wrapper (return value void), which <em>folds</em> the signal, and delegates the emission to here. </p>
<p>References <a class="el" href="classlout_1_1container_1_1typed_1_1Iterator.html#a71719c6c99cf99ce3df331a08ddea953">lout::container::typed::Iterator< T >::hasNext()</a>.</p>
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<td class="memname">void lout::signal::Emitter::intoStringBuffer </td>
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<p>Store a textual representation of the object in a <a class="el" href="classlout_1_1misc_1_1StringBuffer.html" title="A class for fast concatenation of a large number of strings. ">misc::StringBuffer</a>. </p>
<p>This is used by <a class="el" href="classlout_1_1object_1_1Object.html#ad7aeadc7934293197110d550abda81ff" title="Use object::Object::intoStringBuffer to return a textual representation of the object. ">object::Object::toString</a>. </p>
<p>Reimplemented from <a class="el" href="classlout_1_1object_1_1Object.html#ad1ad2f2b36fc7a7bead883caa64b0082">lout::object::Object</a>.</p>
<p>References <a class="el" href="classlout_1_1misc_1_1StringBuffer.html#ab68b6f3ea53f2ede620b2b8cf36893f3">lout::misc::StringBuffer::append()</a>.</p>
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<p>Referenced by <a class="el" href="classlout_1_1signal_1_1Receiver.html#a160d99de16e066e25f9fc580955e6e49">lout::signal::Receiver::~Receiver()</a>.</p>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
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<td class="memname"><a class="el" href="classlout_1_1container_1_1typed_1_1List.html">container::typed::List</a><<a class="el" href="classlout_1_1signal_1_1Receiver.html">Receiver</a>>* lout::signal::Emitter::receivers</td>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>lout/<a class="el" href="signal_8hh_source.html">signal.hh</a></li>
<li>lout/<a class="el" href="signal_8cc.html">signal.cc</a></li>
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