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 <span id="projectnumber">3.2.3</span>
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<li class="navelem"><a class="el" href="namespaceWt.html">Wt</a> </li>
<li class="navelem"><a class="el" href="classWt_1_1WSubMenuItem.html">WSubMenuItem</a> </li>
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<a href="#pub-methods">Public Member Functions</a> |
<a href="#pro-methods">Protected Member Functions</a> </div>
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<div class="title">Wt::WSubMenuItem Class Reference</div> </div>
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<!-- doxytag: class="Wt::WSubMenuItem" --><!-- doxytag: inherits="Wt::WMenuItem" -->
<p>A menu item that contains a nested sub menu.
<a href="classWt_1_1WSubMenuItem.html#details">More...</a></p>
<div class="dynheader">
Inheritance diagram for Wt::WSubMenuItem:</div>
<div class="dyncontent">
<div class="center"><img src="classWt_1_1WSubMenuItem__inherit__graph.png" border="0" usemap="#Wt_1_1WSubMenuItem_inherit__map" alt="Inheritance graph"/></div>
<map name="Wt_1_1WSubMenuItem_inherit__map" id="Wt_1_1WSubMenuItem_inherit__map">
<area shape="rect" href="classWt_1_1WMenuItem.html" title="A single item in a menu." alt="" coords="17,80,132,107"/><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="27,5,123,32"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classWt_1_1WSubMenuItem-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"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSubMenuItem.html#a0c56dcd20f9d6afaaf289d2270e3b296">WSubMenuItem</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &text, <a class="el" href="classWt_1_1WWidget.html">WWidget</a> *contents, <a class="el" href="classWt_1_1WMenuItem.html#a5e276ed0505694a7b89a1dd0c62aa55a">LoadPolicy</a> policy=LazyLoading)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a new item. <a href="#a0c56dcd20f9d6afaaf289d2270e3b296"></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_1WSubMenuItem.html#a33eccd31a4aa8436cf66effa2cecf94b">setSubMenu</a> (<a class="el" href="classWt_1_1WMenu.html">WMenu</a> *subMenu)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets a sub menu. <a href="#a33eccd31a4aa8436cf66effa2cecf94b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WMenu.html">WMenu</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSubMenuItem.html#aa30469d72bfdec0c85181f012e269e9f">subMenu</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the sub menu. <a href="#aa30469d72bfdec0c85181f012e269e9f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSubMenuItem.html#af774d49f24f2ee362cc28eb688cb9eef">pathComponent</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the path component for this item. <a href="#af774d49f24f2ee362cc28eb688cb9eef"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSubMenuItem.html#a3883ce17fd7d04553510700189fbc7af">createItemWidget</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates the widget that represents the item. <a href="#a3883ce17fd7d04553510700189fbc7af"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSubMenuItem.html#a44820d1555db0e1f6593dd80d1c0b34e">updateItemWidget</a> (<a class="el" href="classWt_1_1WWidget.html">WWidget</a> *itemWidget)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Updates the widget that represents the item. <a href="#a44820d1555db0e1f6593dd80d1c0b34e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSubMenuItem.html#ad3096bef2abbc291cb2560cd16d92458">renderSelected</a> (bool selected)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Renders the item as selected or unselected. <a href="#ad3096bef2abbc291cb2560cd16d92458"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1SignalBase.html">SignalBase</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSubMenuItem.html#a38d7a0fa3581f34aa72c9fd4d1a6eaeb">activateSignal</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the signal used to activate the item. <a href="#a38d7a0fa3581f34aa72c9fd4d1a6eaeb"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A menu item that contains a nested sub menu. </p>
<p>This class specializes menu item to have an optional sub menu.</p>
<p>When the item is shown and hidden when the item is selected respectively deselected.</p>
<p>Usage example: </p>
<div class="fragment"><pre class="fragment"> <span class="comment">// create the stack where the contents will be located</span>
<a class="code" href="classWt_1_1WStackedWidget.html" title="A container widget that stacks its widgets on top of each other.">Wt::WStackedWidget</a> *contents = <span class="keyword">new</span> <a class="code" href="classWt_1_1WStackedWidget.html" title="A container widget that stacks its widgets on top of each other.">Wt::WStackedWidget</a>();
<span class="comment">// create a top-level menu</span>
<a class="code" href="classWt_1_1WMenu.html" title="A widget that shows a menu of options.">Wt::WMenu</a> *menu = <span class="keyword">new</span> <a class="code" href="classWt_1_1WMenu.html" title="A widget that shows a menu of options.">Wt::WMenu</a>(contents, <a class="code" href="namespaceWt.html#a2a8d45559e16a0185bf61bfad0a67912af916b7ec24727db2d972f0770170c7f5" title="Vertical.">Wt::Vertical</a>);
<span class="comment">// add two plain items</span>
menu-><a class="code" href="classWt_1_1WMenu.html#ad7840197cc0caf0430792b9f4a0df60d" title="Adds an item.">addItem</a>(<span class="stringliteral">"Introduction"</span>, <span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(tr(<span class="stringliteral">"intro"</span>));
menu-><a class="code" href="classWt_1_1WMenu.html#ad7840197cc0caf0430792b9f4a0df60d" title="Adds an item.">addItem</a>(<span class="stringliteral">"Download"</span>, <span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(<span class="stringliteral">"Not yet available"</span>));
<span class="comment">// add an item with a sub menu</span>
<a class="code" href="classWt_1_1WSubMenuItem.html" title="A menu item that contains a nested sub menu.">Wt::WSubMenuItem</a> *examples = <span class="keyword">new</span> <a class="code" href="classWt_1_1WSubMenuItem.html#a0c56dcd20f9d6afaaf289d2270e3b296" title="Creates a new item.">Wt::WSubMenuItem</a>(<span class="stringliteral">"Examples"</span>, <span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(tr(<span class="stringliteral">"examples"</span>)));
<a class="code" href="classWt_1_1WMenu.html" title="A widget that shows a menu of options.">Wt::WMenu</a> *examplesMenu = <span class="keyword">new</span> <a class="code" href="classWt_1_1WMenu.html" title="A widget that shows a menu of options.">Wt::WMenu</a>(contents, <a class="code" href="namespaceWt.html#a2a8d45559e16a0185bf61bfad0a67912af916b7ec24727db2d972f0770170c7f5" title="Vertical.">Wt::Vertical</a>);
examplesMenu-><a class="code" href="classWt_1_1WMenu.html#ad7840197cc0caf0430792b9f4a0df60d" title="Adds an item.">addItem</a>(<span class="stringliteral">"Hello world"</span>, <span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(tr(<span class="stringliteral">"example.hello-world"</span>)));
examplesMenu-><a class="code" href="classWt_1_1WMenu.html#ad7840197cc0caf0430792b9f4a0df60d" title="Adds an item.">addItem</a>(<span class="stringliteral">"Shopping cart"</span>, <span class="keyword">new</span> <a class="code" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">Wt::WText</a>(tr(<span class="stringliteral">"example.shopping"</span>)));
examples-><a class="code" href="classWt_1_1WSubMenuItem.html#a33eccd31a4aa8436cf66effa2cecf94b" title="Sets a sub menu.">setSubMenu</a>(examplesMenu);
menu-><a class="code" href="classWt_1_1WMenu.html#ad7840197cc0caf0430792b9f4a0df60d" title="Adds an item.">addItem</a>(examples);
addWidget(menu);
addWidget(contents);
</pre></div><dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WMenuItem.html" title="A single item in a menu.">WMenuItem</a>, <a class="el" href="classWt_1_1WMenu.html" title="A widget that shows a menu of options.">WMenu</a> </dd></dl>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a0c56dcd20f9d6afaaf289d2270e3b296"></a><!-- doxytag: member="Wt::WSubMenuItem::WSubMenuItem" ref="a0c56dcd20f9d6afaaf289d2270e3b296" args="(const WString &text, WWidget *contents, LoadPolicy policy=LazyLoading)" -->
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<td class="memname">Wt::WSubMenuItem::WSubMenuItem </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"><em>text</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td>
<td class="paramname"><em>contents</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classWt_1_1WMenuItem.html#a5e276ed0505694a7b89a1dd0c62aa55a">LoadPolicy</a> </td>
<td class="paramname"><em>policy</em> = <code>LazyLoading</code> </td>
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<td>)</td>
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<p>Creates a new item. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WMenuItem.html#a772f165f3dc02138c28d74f1f42d1a45" title="Creates a new item.">WMenuItem::WMenuItem(const WString&, WWidget *, LoadPolicy)</a> </dd></dl>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a38d7a0fa3581f34aa72c9fd4d1a6eaeb"></a><!-- doxytag: member="Wt::WSubMenuItem::activateSignal" ref="a38d7a0fa3581f34aa72c9fd4d1a6eaeb" args="()" -->
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<td class="memname"><a class="el" href="classWt_1_1SignalBase.html">SignalBase</a> & Wt::WSubMenuItem::activateSignal </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [protected, virtual]</code></td>
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<p>Returns the signal used to activate the item. </p>
<p>The default implementation will tries to cast the <a class="el" href="classWt_1_1WMenuItem.html#a185b334943c3e07d63d3e45a17e960f7" title="Returns the widget that represents the item.">itemWidget()</a> or its first child if item is <a class="el" href="classWt_1_1WMenuItem.html#a59b6dee6c95ae958f0c3b76d5ef7272d">closeable</a> to a <a class="el" href="classWt_1_1WInteractWidget.html" title="An abstract widget that can receive user-interface interaction.">WInteractWidget</a> and returns the <a class="el" href="classWt_1_1WInteractWidget.html#ae11e050cce0d4a8f742afa3ef92bfe8c">clicked signal</a>. </p>
<p>Reimplemented from <a class="el" href="classWt_1_1WMenuItem.html#a5f1d03e160011fcd39759b681f8bc063">Wt::WMenuItem</a>.</p>
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<a class="anchor" id="a3883ce17fd7d04553510700189fbc7af"></a><!-- doxytag: member="Wt::WSubMenuItem::createItemWidget" ref="a3883ce17fd7d04553510700189fbc7af" args="()" -->
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<td class="memname"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * Wt::WSubMenuItem::createItemWidget </td>
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<td class="paramname"></td><td>)</td>
<td><code> [protected, virtual]</code></td>
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<p>Creates the widget that represents the item. </p>
<p>The default implementation will return:</p>
<ul>
<li>a <a class="el" href="classWt_1_1WAnchor.html" title="A widget that represents an HTML anchor (to link to other documents).">WAnchor</a> if item is not closeable and enabled;</li>
<li>a <a class="el" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">WText</a> if item is not closeable and disabled;</li>
<li>a <a class="el" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">WContainerWidget</a> with <a class="el" href="classWt_1_1WAnchor.html" title="A widget that represents an HTML anchor (to link to other documents).">WAnchor</a> or <a class="el" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">WText</a> (the label of enabled or disabled item accordingly) and <a class="el" href="classWt_1_1WText.html" title="A widget that renders (XHTML) text.">WText</a> (the close icon) inside if item is closeable.</li>
</ul>
<p>A call to <a class="el" href="classWt_1_1WSubMenuItem.html#a3883ce17fd7d04553510700189fbc7af" title="Creates the widget that represents the item.">createItemWidget()</a> is immediately followed by <a class="el" href="classWt_1_1WSubMenuItem.html#a44820d1555db0e1f6593dd80d1c0b34e" title="Updates the widget that represents the item.">updateItemWidget()</a>.</p>
<p>If you reimplement this method, you should probably also reimplement <a class="el" href="classWt_1_1WSubMenuItem.html#a44820d1555db0e1f6593dd80d1c0b34e" title="Updates the widget that represents the item.">updateItemWidget()</a>. </p>
<p>Reimplemented from <a class="el" href="classWt_1_1WMenuItem.html#a5dd1286e97b110b621e00e02e58a15d2">Wt::WMenuItem</a>.</p>
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<a class="anchor" id="af774d49f24f2ee362cc28eb688cb9eef"></a><!-- doxytag: member="Wt::WSubMenuItem::pathComponent" ref="af774d49f24f2ee362cc28eb688cb9eef" args="() const " -->
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<td class="memname">std::string Wt::WSubMenuItem::pathComponent </td>
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<p>Returns the path component for this item. </p>
<p>You may want to reimplement this to customize the path component set by the item in the application internal path.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WMenuItem.html#a4291756303dbf128b718679cdb907a5a" title="Sets the path component for this item.">setPathComponent()</a></dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>the <code>path</code> component is UTF8 encoded (we may fix the API to use <a class="el" href="classWt_1_1WString.html" title="A value class which describes a locale-aware unicode string.">WString</a> in the future). </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WMenuItem.html#a5ab0b5430b9fb852a45886deb0ff01b1">Wt::WMenuItem</a>.</p>
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<a class="anchor" id="ad3096bef2abbc291cb2560cd16d92458"></a><!-- doxytag: member="Wt::WSubMenuItem::renderSelected" ref="ad3096bef2abbc291cb2560cd16d92458" args="(bool selected)" -->
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<td class="memname">void Wt::WSubMenuItem::renderSelected </td>
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<td class="paramtype">bool </td>
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<td><code> [protected, virtual]</code></td>
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<p>Renders the item as selected or unselected. </p>
<p>The default implementation sets the styleclass for <a class="el" href="classWt_1_1WMenuItem.html#a185b334943c3e07d63d3e45a17e960f7" title="Returns the widget that represents the item.">itemWidget()</a> to 'item' for an unselected not closeable, 'itemselected' for selected not closeable, 'citem' for an unselected closeable and 'citemselected' for selected closeable item.</p>
<p>Note that this method is called from within a stateless slot implementation, and thus should be stateless as well. </p>
<p>Reimplemented from <a class="el" href="classWt_1_1WMenuItem.html#a3af62f2a97827c844e021ad2dd3f6085">Wt::WMenuItem</a>.</p>
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<a class="anchor" id="a33eccd31a4aa8436cf66effa2cecf94b"></a><!-- doxytag: member="Wt::WSubMenuItem::setSubMenu" ref="a33eccd31a4aa8436cf66effa2cecf94b" args="(WMenu *subMenu)" -->
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<td class="memname">void Wt::WSubMenuItem::setSubMenu </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WMenu.html">WMenu</a> * </td>
<td class="paramname"><em>subMenu</em></td><td>)</td>
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<p>Sets a sub menu. </p>
<p>Ownership of the <code>subMenu</code> is transferred to the item. In most cases, the sub menu would use the same contents stack as the parent menu.</p>
<p>The default submenu is <code>0</code>, in which case the item behaves as a plain <a class="el" href="classWt_1_1WMenuItem.html" title="A single item in a menu.">WMenuItem</a>.</p>
<dl class="note"><dt><b>Note:</b></dt><dd>A sub menu can only be set before the item is added to a menu. </dd></dl>
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<a class="anchor" id="aa30469d72bfdec0c85181f012e269e9f"></a><!-- doxytag: member="Wt::WSubMenuItem::subMenu" ref="aa30469d72bfdec0c85181f012e269e9f" args="()" -->
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<td class="memname"><a class="el" href="classWt_1_1WMenu.html">WMenu</a>* Wt::WSubMenuItem::subMenu </td>
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<p>Returns the sub menu. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WSubMenuItem.html#a33eccd31a4aa8436cf66effa2cecf94b" title="Sets a sub menu.">setSubMenu()</a> </dd></dl>
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<a class="anchor" id="a44820d1555db0e1f6593dd80d1c0b34e"></a><!-- doxytag: member="Wt::WSubMenuItem::updateItemWidget" ref="a44820d1555db0e1f6593dd80d1c0b34e" args="(WWidget *itemWidget)" -->
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<td class="memname">void Wt::WSubMenuItem::updateItemWidget </td>
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<td class="paramtype"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td>
<td class="paramname"><em>itemWidget</em></td><td>)</td>
<td><code> [protected, virtual]</code></td>
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<p>Updates the widget that represents the item. </p>
<p>The default implementation will cast the <code>itemWidget</code> to a <a class="el" href="classWt_1_1WAnchor.html" title="A widget that represents an HTML anchor (to link to other documents).">WAnchor</a>, and set the anchor's text and destination according to <a class="el" href="classWt_1_1WMenuItem.html#a2061c3c242e98e53c820bfa500db492c" title="Returns the text for this item.">text()</a> and <a class="el" href="classWt_1_1WSubMenuItem.html#af774d49f24f2ee362cc28eb688cb9eef" title="Returns the path component for this item.">pathComponent()</a>.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WSubMenuItem.html#a3883ce17fd7d04553510700189fbc7af" title="Creates the widget that represents the item.">createItemWidget()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WMenuItem.html#adf18031f469001bdd5333cff0a66a9a4">Wt::WMenuItem</a>.</p>
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