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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Wt: Wt::WPushButton Class Reference</title>
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<div class="navpath"><a class="el" href="namespaceWt.html">Wt</a>::<a class="el" href="classWt_1_1WPushButton.html">WPushButton</a>
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<h1>Wt::WPushButton Class Reference</h1><!-- doxytag: class="Wt::WPushButton" --><!-- doxytag: inherits="Wt::WFormWidget" -->A widget that represents a push button.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/WPushButton></code>
<p>
<div class="dynheader">
Inheritance diagram for Wt::WPushButton:</div>
<div class="dynsection">
<p><center><img src="classWt_1_1WPushButton__inherit__graph.png" border="0" usemap="#Wt_1_1WPushButton__inherit__map" alt="Inheritance graph"></center>
<map name="Wt_1_1WPushButton__inherit__map">
<area shape="rect" href="classWt_1_1WFormWidget.html" title="An abstract widget that corresponds to an HTML form element." alt="" coords="12,304,140,331"><area shape="rect" href="classWt_1_1WInteractWidget.html" title="An abstract widget that can receive user-interface interaction." alt="" coords="5,229,147,256"><area shape="rect" href="classWt_1_1WWebWidget.html" title="A base class for widgets with an HTML counterpart." alt="" coords="15,155,137,181"><area shape="rect" href="classWt_1_1WWidget.html" title="The abstract base class for a user-interface component." alt="" coords="28,80,124,107"><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="28,5,124,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="classWt_1_1WPushButton-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="bd74d092403f1cbe17f8ea3529c0528f"></a><!-- doxytag: member="Wt::WPushButton::WPushButton" ref="bd74d092403f1cbe17f8ea3529c0528f" args="(WContainerWidget *parent=0)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WPushButton.html#bd74d092403f1cbe17f8ea3529c0528f">WPushButton</a> (<a class="el" href="classWt_1_1WContainerWidget.html">WContainerWidget</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a push button. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="6525ba8c05bb27ad80c4a0a0ff32cf71"></a><!-- doxytag: member="Wt::WPushButton::WPushButton" ref="6525ba8c05bb27ad80c4a0a0ff32cf71" args="(const WString &text, WContainerWidget *parent=0)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WPushButton.html#6525ba8c05bb27ad80c4a0a0ff32cf71">WPushButton</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &text, <a class="el" href="classWt_1_1WContainerWidget.html">WContainerWidget</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a push button with given label text. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e76e2ad608c2acb0686dee57649a596d"></a><!-- doxytag: member="Wt::WPushButton::setText" ref="e76e2ad608c2acb0686dee57649a596d" args="(const WString &text)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WPushButton.html#e76e2ad608c2acb0686dee57649a596d">setText</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &text)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the button text. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WPushButton.html#c9eeba268762744f72158d9ec8de26fb">text</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the button text. <a href="#c9eeba268762744f72158d9ec8de26fb"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WPushButton.html#eb5668bdbe96e460047de04ed5759af9">setIcon</a> (const std::string &url)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets an icon. <a href="#eb5668bdbe96e460047de04ed5759af9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const std::string & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WPushButton.html#f0f52faf4a50b1d80d03d6a32f3c7a28">icon</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the icon. <a href="#f0f52faf4a50b1d80d03d6a32f3c7a28"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WPushButton.html#57084964c8ecf099bcf3e4767a5cca68">refresh</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Refresh the widget. <a href="#57084964c8ecf099bcf3e4767a5cca68"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A widget that represents a push button.
<p>
To act on a button click, connect a slot to the <a class="el" href="classWt_1_1WInteractWidget.html#e11e050cce0d4a8f742afa3ef92bfe8c" title="Event signal emitted when a mouse key was clicked on this widget.">clicked()</a> signal.<p>
Usage example: <div class="fragment"><pre class="fragment"> <a class="code" href="classWt_1_1WPushButton.html" title="A widget that represents a push button.">Wt::WPushButton</a> *ok = <span class="keyword">new</span> <a class="code" href="classWt_1_1WPushButton.html" title="A widget that represents a push button.">Wt::WPushButton</a>(<span class="stringliteral">"Okay"</span>);
ok-><a class="code" href="classWt_1_1WInteractWidget.html#e11e050cce0d4a8f742afa3ef92bfe8c" title="Event signal emitted when a mouse key was clicked on this widget.">clicked</a>().connect(SLOT(ok, <a class="code" href="classWt_1_1WWidget.html#5f68ea0ab29adfb8e559153fca281e03" title="Disable thes widget.">Wt::WPushButton::disable</a>));
ok-><a class="code" href="classWt_1_1WInteractWidget.html#e11e050cce0d4a8f742afa3ef92bfe8c" title="Event signal emitted when a mouse key was clicked on this widget.">clicked</a>().connect(SLOT(<span class="keyword">this</span>, MyClass::processData));
</pre></div><p>
WPushButton is an <a class="el" href="classWt_1_1WWidget.html#c78e3af143883334c82031790c87416e">inline </a> widget.<p>
<h3>CSS</h3>
<p>
The widget corresponds to the HTML <code><button></code> tag and has the <code>Wt-btn</code> style. It may be styled through the current theme, or you can override the style using internal or external CSS as appropriate. <hr><h2>Member Function Documentation</h2>
<a class="anchor" name="c9eeba268762744f72158d9ec8de26fb"></a><!-- doxytag: member="Wt::WPushButton::text" ref="c9eeba268762744f72158d9ec8de26fb" args="() const " -->
<div class="memitem">
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<td class="memname">const <a class="el" href="classWt_1_1WString.html">WString</a>& Wt::WPushButton::text </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Returns the button text.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WPushButton.html#e76e2ad608c2acb0686dee57649a596d" title="Sets the button text.">setText()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="eb5668bdbe96e460047de04ed5759af9"></a><!-- doxytag: member="Wt::WPushButton::setIcon" ref="eb5668bdbe96e460047de04ed5759af9" args="(const std::string &url)" -->
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<td class="memname">void Wt::WPushButton::setIcon </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"> <em>url</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
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<div class="memdoc">
<p>
Sets an icon.
<p>
The icon is placed to the left of the text.
</div>
</div><p>
<a class="anchor" name="f0f52faf4a50b1d80d03d6a32f3c7a28"></a><!-- doxytag: member="Wt::WPushButton::icon" ref="f0f52faf4a50b1d80d03d6a32f3c7a28" args="() const " -->
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<td class="memname">const std::string& Wt::WPushButton::icon </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Returns the icon.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WPushButton.html#eb5668bdbe96e460047de04ed5759af9" title="Sets an icon.">setIcon()</a> </dd></dl>
</div>
</div><p>
<a class="anchor" name="57084964c8ecf099bcf3e4767a5cca68"></a><!-- doxytag: member="Wt::WPushButton::refresh" ref="57084964c8ecf099bcf3e4767a5cca68" args="()" -->
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<td class="memname">void Wt::WPushButton::refresh </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Refresh the widget.
<p>
The refresh method is invoked when the locale is changed using <a class="el" href="classWt_1_1WApplication.html#5c9cc1350019d69f154a2b44cdaf2596" title="Changes the locale.">WApplication::setLocale()</a> or when the user hit the refresh button.<p>
The widget must actualize its contents in response.
<p>Reimplemented from <a class="el" href="classWt_1_1WWebWidget.html#8d0b7883f2f77a0c24b8fb911a8086a8">Wt::WWebWidget</a>.</p>
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