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<!-- doxytag: class="Wt::EventSignalBase" --><!-- doxytag: inherits="Wt::SignalBase" -->
<p>Abstract base class of an event signal.
<a href="classWt_1_1EventSignalBase.html#details">More...</a></p>
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Inheritance diagram for Wt::EventSignalBase:</div>
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<div class="center"><img src="classWt_1_1EventSignalBase__inherit__graph.png" border="0" usemap="#Wt_1_1EventSignalBase_inherit__map" alt="Inheritance graph"/></div>
<map name="Wt_1_1EventSignalBase_inherit__map" id="Wt_1_1EventSignalBase_inherit__map">
<area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< bool \>" alt="" coords="595,16,731,43"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< Coordinate \>" alt="" coords="576,67,749,93"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< int \>" alt="" coords="600,117,725,144"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< int, int \>" alt="" coords="589,168,736,195"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< int, int, int, int \>" alt="" coords="567,219,759,245"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< int, int, std::string, std::string, WMouseEvent \>" alt="" coords="477,269,848,296"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< std::string \>" alt="" coords="577,320,748,347"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< std::string, int \>" alt="" coords="567,371,759,397"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< std::string, int, std::string \>" alt="" coords="533,421,792,448"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< std::string, int, std::string, std::string, std::string, WMouseEvent \>" alt="" coords="421,472,904,499"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< std::string, std::string \>" alt="" coords="545,523,780,549"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< std::string, std::string, WMouseEvent, struct NoClass, struct NoClass, struct NoClass \>" alt="" coords="357,573,968,600"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\< void \>" alt="" coords="596,624,729,651"/><area shape="rect" href="classWt_1_1JSignal.html" title="Wt::JSignal\<\>" alt="" coords="611,675,715,701"/><area shape="rect" href="classWt_1_1EventSignal.html" title="A signal that conveys user-interface events." alt="" coords="589,725,736,752"/><area shape="rect" href="classWt_1_1JSignal.html" title="A signal to relay JavaScript to C++ calls." alt="" coords="539,776,787,803"/><area shape="rect" href="classWt_1_1SignalBase.html" title="Abstract base class of a signal." alt="" coords="5,396,117,423"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classWt_1_1EventSignalBase-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1EventSignalBase.html#a1ef1b9ac79778e98e703ec3a2de30a1f">name</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the event name. <a href="#a1ef1b9ac79778e98e703ec3a2de30a1f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1EventSignalBase.html#a9abebc3c61cade46272159698960e214">isConnected</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether this signal is connected. <a href="#a9abebc3c61cade46272159698960e214"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1EventSignalBase.html#afd8983929683ffc4c6dda8a91a7bda7b">preventDefaultAction</a> (bool prevent=true)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Prevents the default browser action. <a href="#afd8983929683ffc4c6dda8a91a7bda7b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1EventSignalBase.html#ac840555229d96847ffb11960958e0fff">defaultActionPrevented</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether the default browser action is prevented. <a href="#ac840555229d96847ffb11960958e0fff"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1EventSignalBase.html#a63f088978e6dd375b3a329f458f9db3f">preventPropagation</a> (bool prevent=true)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Prevents event propagation. <a href="#a63f088978e6dd375b3a329f458f9db3f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1EventSignalBase.html#a0660648ca23b59a30ddc3226ad4a55b3">propagationPrevented</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether event propagation is prevented. <a href="#a0660648ca23b59a30ddc3226ad4a55b3"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Abstract base class of an event signal. </p>
<p>An event signal is directly associated with a user-interface generated event. </p>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ac840555229d96847ffb11960958e0fff"></a><!-- doxytag: member="Wt::EventSignalBase::defaultActionPrevented" ref="ac840555229d96847ffb11960958e0fff" args="() const " -->
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<td class="memname">bool Wt::EventSignalBase::defaultActionPrevented </td>
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<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns whether the default browser action is prevented. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1EventSignalBase.html#afd8983929683ffc4c6dda8a91a7bda7b" title="Prevents the default browser action.">preventDefaultAction()</a> </dd></dl>
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<a class="anchor" id="a9abebc3c61cade46272159698960e214"></a><!-- doxytag: member="Wt::EventSignalBase::isConnected" ref="a9abebc3c61cade46272159698960e214" args="() const " -->
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<td class="memname">bool Wt::EventSignalBase::isConnected </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<p>Returns whether this signal is connected. </p>
<p>Returns true when the signal was connected to to at least one slot. </p>
<p>Implements <a class="el" href="classWt_1_1SignalBase.html#a13a3106be8949b273edc74aa61be14ce">Wt::SignalBase</a>.</p>
<p>Reimplemented in <a class="el" href="classWt_1_1EventSignal.html#aba826d0b0c74751fed4ab8eb9b05732b">Wt::EventSignal< E ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< A1, A2, A3, A4, A5, A6 ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< Coordinate ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal<></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< std::string, int ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< std::string ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< std::string, std::string, WMouseEvent, struct NoClass, struct NoClass, struct NoClass ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< int, int ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< int ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< void ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< int, int, std::string, std::string, WMouseEvent ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< std::string, int, std::string, std::string, std::string, WMouseEvent ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< std::string, int, std::string ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< bool ></a>, <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< int, int, int, int ></a>, and <a class="el" href="classWt_1_1JSignal.html#a401ed9f5d5e0611b6dbd6eb28022f65f">Wt::JSignal< std::string, std::string ></a>.</p>
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<a class="anchor" id="a1ef1b9ac79778e98e703ec3a2de30a1f"></a><!-- doxytag: member="Wt::EventSignalBase::name" ref="a1ef1b9ac79778e98e703ec3a2de30a1f" args="() const " -->
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<td class="memname">const char* Wt::EventSignalBase::name </td>
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<td> const</td>
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<p>Returns the event name. </p>
<p>The event name is implementation-defined. </p>
<p>Reimplemented in <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< A1, A2, A3, A4, A5, A6 ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< Coordinate ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal<></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< std::string, int ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< std::string ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< std::string, std::string, WMouseEvent, struct NoClass, struct NoClass, struct NoClass ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< int, int ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< int ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< void ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< int, int, std::string, std::string, WMouseEvent ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< std::string, int, std::string, std::string, std::string, WMouseEvent ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< std::string, int, std::string ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< bool ></a>, <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< int, int, int, int ></a>, and <a class="el" href="classWt_1_1JSignal.html#aba4f375bcfd61c8938ceeafedd1b79b9">Wt::JSignal< std::string, std::string ></a>.</p>
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<a class="anchor" id="afd8983929683ffc4c6dda8a91a7bda7b"></a><!-- doxytag: member="Wt::EventSignalBase::preventDefaultAction" ref="afd8983929683ffc4c6dda8a91a7bda7b" args="(bool prevent=true)" -->
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<td class="memname">void Wt::EventSignalBase::preventDefaultAction </td>
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<p>Prevents the default browser action. </p>
<p>Use this method to prevent the default browser action associated with this event.</p>
<dl class="see"><dt><b>See also:</b></dt><dd>setPreventPropagation() </dd></dl>
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<a class="anchor" id="a63f088978e6dd375b3a329f458f9db3f"></a><!-- doxytag: member="Wt::EventSignalBase::preventPropagation" ref="a63f088978e6dd375b3a329f458f9db3f" args="(bool prevent=true)" -->
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<td class="memname">void Wt::EventSignalBase::preventPropagation </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>prevent</em> = <code>true</code></td><td>)</td>
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<p>Prevents event propagation. </p>
<p>Use this method to prevent that the event propagates further to its ancestors.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1EventSignalBase.html#afd8983929683ffc4c6dda8a91a7bda7b" title="Prevents the default browser action.">preventDefaultAction()</a> </dd></dl>
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<a class="anchor" id="a0660648ca23b59a30ddc3226ad4a55b3"></a><!-- doxytag: member="Wt::EventSignalBase::propagationPrevented" ref="a0660648ca23b59a30ddc3226ad4a55b3" args="() const " -->
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<td class="memname">bool Wt::EventSignalBase::propagationPrevented </td>
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<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns whether event propagation is prevented. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1EventSignalBase.html#a63f088978e6dd375b3a329f458f9db3f" title="Prevents event propagation.">preventPropagation()</a> </dd></dl>
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