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<li class="navelem"><a class="el" href="namespaceWt.html">Wt</a> </li>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">Wt::WMessageBox Class Reference</div> </div>
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<!-- doxytag: class="Wt::WMessageBox" --><!-- doxytag: inherits="Wt::WDialog" -->
<p>A standard dialog for confirmation or to get simple user input.
<a href="classWt_1_1WMessageBox.html#details">More...</a></p>
<p><code>#include <Wt/WMessageBox></code></p>
<div class="dynheader">
Inheritance diagram for Wt::WMessageBox:</div>
<div class="dyncontent">
<div class="center"><img src="classWt_1_1WMessageBox__inherit__graph.png" border="0" usemap="#Wt_1_1WMessageBox_inherit__map" alt="Inheritance graph"/></div>
<map name="Wt_1_1WMessageBox_inherit__map" id="Wt_1_1WMessageBox_inherit__map">
<area shape="rect" href="classWt_1_1WDialog.html" title="A WDialog shows a dialog." alt="" coords="39,229,135,256"/><area shape="rect" href="classWt_1_1WCompositeWidget.html" title="A widget that hides the implementation of composite widgets." alt="" coords="5,155,168,181"/><area shape="rect" href="classWt_1_1WWidget.html" title="The abstract base class for a user-interface component." alt="" coords="37,80,136,107"/><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="39,5,135,32"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classWt_1_1WMessageBox-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"><a class="anchor" id="a02fe68c3f577dad4438c85564418292f"></a><!-- doxytag: member="Wt::WMessageBox::WMessageBox" ref="a02fe68c3f577dad4438c85564418292f" args="()" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a02fe68c3f577dad4438c85564418292f">WMessageBox</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates an empty message box. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa77b55235ca91e331c8574171caabfbb"></a><!-- doxytag: member="Wt::WMessageBox::WMessageBox" ref="aa77b55235ca91e331c8574171caabfbb" args="(const WString &caption, const WString &text, Icon icon, WFlags< StandardButton > buttons)" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#aa77b55235ca91e331c8574171caabfbb">WMessageBox</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &caption, const <a class="el" href="classWt_1_1WString.html">WString</a> &text, <a class="el" href="namespaceWt.html#aaa26ad9f143951595691fbd604567f5f">Icon</a> icon, WFlags< <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> > buttons)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a message box with given caption, text, icon, and buttons. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aef66b54dc12ec478e218d561880254e8"></a><!-- doxytag: member="Wt::WMessageBox::setText" ref="aef66b54dc12ec478e218d561880254e8" args="(const WString &text)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#aef66b54dc12ec478e218d561880254e8">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 text for the message box. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1e1dffabe0d91e84f6f504ffb600c4a0"></a><!-- doxytag: member="Wt::WMessageBox::text" ref="a1e1dffabe0d91e84f6f504ffb600c4a0" args="() const " -->
const <a class="el" href="classWt_1_1WString.html">WString</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a1e1dffabe0d91e84f6f504ffb600c4a0">text</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the message box text. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WText.html">WText</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#ada70275e7f0d9fc067cd5a1c553a031f">textWidget</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the text widget. <a href="#ada70275e7f0d9fc067cd5a1c553a031f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a194dc23e212770e494d459f2426f9ae8"></a><!-- doxytag: member="Wt::WMessageBox::setIcon" ref="a194dc23e212770e494d459f2426f9ae8" args="(Icon icon)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a194dc23e212770e494d459f2426f9ae8">setIcon</a> (<a class="el" href="namespaceWt.html#aaa26ad9f143951595691fbd604567f5f">Icon</a> icon)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the icon. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0ff9580eedf4a3e6b74f27eae71e23ff"></a><!-- doxytag: member="Wt::WMessageBox::icon" ref="a0ff9580eedf4a3e6b74f27eae71e23ff" args="() const " -->
<a class="el" href="namespaceWt.html#aaa26ad9f143951595691fbd604567f5f">Icon</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a0ff9580eedf4a3e6b74f27eae71e23ff">icon</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the icon. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WPushButton.html">WPushButton</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a9d07bb99d17c38128c79f9c7ecd42963">addButton</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &text, <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> result)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a custom button with given text. <a href="#a9d07bb99d17c38128c79f9c7ecd42963"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1757ee241b2df0045623a6bcad707dc6"></a><!-- doxytag: member="Wt::WMessageBox::setButtons" ref="a1757ee241b2df0045623a6bcad707dc6" args="(WFlags< StandardButton > buttons)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a1757ee241b2df0045623a6bcad707dc6">setButtons</a> (WFlags< <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> > buttons)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets standard buttons for the message box. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a71c9a2cce4be7c3a5e33718c8ec924c1"></a><!-- doxytag: member="Wt::WMessageBox::buttons" ref="a71c9a2cce4be7c3a5e33718c8ec924c1" args="() const " -->
WFlags< <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a71c9a2cce4be7c3a5e33718c8ec924c1">buttons</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the standard buttons. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WPushButton.html">WPushButton</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#a0e95f906d321b5c5cb574abc25716aec">button</a> (<a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> b)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the button widget for the given standard button. <a href="#a0e95f906d321b5c5cb574abc25716aec"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#ac07ce4dd360c8305cdc1e08642e32a7c">buttonResult</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the result of this message box. <a href="#ac07ce4dd360c8305cdc1e08642e32a7c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae9d2caaa82244b2b195e9d3e011bc740"></a><!-- doxytag: member="Wt::WMessageBox::buttonClicked" ref="ae9d2caaa82244b2b195e9d3e011bc740" args="()" -->
<a class="el" href="classWt_1_1Signal.html">Signal</a>< <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> > & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#ae9d2caaa82244b2b195e9d3e011bc740">buttonClicked</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Signal emitted when a button is clicked. <br/></td></tr>
<tr><td colspan="2"><h2><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WMessageBox.html#ab856f77f4e4369b5864390a1192c252d">show</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &caption, const <a class="el" href="classWt_1_1WString.html">WString</a> &text, WFlags< <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> > buttons, const <a class="el" href="classWt_1_1WAnimation.html">WAnimation</a> &animation=<a class="el" href="classWt_1_1WAnimation.html">WAnimation</a>())</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Convenience method to show a message box, blocking the current thread. <a href="#ab856f77f4e4369b5864390a1192c252d"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A standard dialog for confirmation or to get simple user input. </p>
<p>The messagebox shows a message in a dialog window, with a number of buttons. These buttons may be standard buttons, or customized.</p>
<p>A messagebox is (usually) modal, and can be instantiated synchronously or asynchronously.</p>
<p>When using a messagebox asynchronously, there is no API call that waits for the messagebox to be processed. Then, the usage is similar to instantiating a <a class="el" href="classWt_1_1WDialog.html" title="A WDialog shows a dialog.">WDialog</a> (or any other widget). You need to connect to the buttonClicked signal with a method that interpretes the result and deletes the message box.</p>
<p>The synchronous use of a messagebox involves the use of the static <a class="el" href="classWt_1_1WWidget.html#a52dcef5a385ddfa0a8c3e6c20000f181" title="Shows the widget.">show()</a> method, which blocks the current thread until the user has processed the messabebox. Since this uses the <a class="el" href="classWt_1_1WDialog.html#aca20cf1a63cf08402f4c03c943e0c968" title="Executes the dialog in a recursive event loop.">WDialog::exec()</a>, it suffers from the same scalability issues. See documentation of <a class="el" href="classWt_1_1WDialog.html" title="A WDialog shows a dialog.">WDialog</a> for more details.</p>
<p>Example code (using the <a class="el" href="classWt_1_1WDialog.html#aca20cf1a63cf08402f4c03c943e0c968" title="Executes the dialog in a recursive event loop.">exec()</a> method, not recommended): </p>
<div class="fragment"><pre class="fragment"> <a class="code" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062" title="Enumeration that indicates a standard button.">StandardButton</a>
result = <a class="code" href="classWt_1_1WWidget.html#a52dcef5a385ddfa0a8c3e6c20000f181" title="Shows the widget.">WMessageBox::show</a>(<span class="stringliteral">"Confirm"</span>, <span class="stringliteral">"About to wreak havoc... Continue ?"</span>,
<a class="code" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062af92b793210df9123b9be1ee11dd0d36d" title="An OK button.">Ok</a> | <a class="code" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062ac31abea0685e68a0e116038d0ad48ca8" title="A Cancel button.">Cancel</a>);
</pre></div><p>This will show a message box that looks like this:</p>
<table border="0" align="center">
<tr>
<td><div class="image">
<img src="WMessageBox-default-1.png" alt="WMessageBox-default-1.png"/>
<div class="caption">
Example of a WMessageBox (default)</div></div>
</td><td><div class="image">
<img src="WMessageBox-polished-1.png" alt="WMessageBox-polished-1.png"/>
<div class="caption">
Example of a WMessageBox (polished)</div></div>
</td></tr>
</table>
<h3>i18n</h3>
<p>The strings used in the <a class="el" href="classWt_1_1WMessageBox.html" title="A standard dialog for confirmation or to get simple user input.">WMessageBox</a> buttons can be translated by overriding the default values for the following localization keys:</p>
<ul>
<li>Wt.WMessageBox.Abort: Abort</li>
<li>Wt.WMessageBox.Cancel: Cancel</li>
<li>Wt.WMessageBox.Ignore: Ignore</li>
<li>Wt.WMessageBox.No: No</li>
<li>Wt.WMessageBox.NoToAll: No to All</li>
<li>Wt.WMessageBox.Ok: Ok</li>
<li>Wt.WMessageBox.Retry: Retry</li>
<li>Wt.WMessageBox.Yes: Yes</li>
<li>Wt.WMessageBox.YesToAll: Yes to All</li>
</ul>
<h3>CSS</h3>
<p>A <a class="el" href="classWt_1_1WMessageBox.html" title="A standard dialog for confirmation or to get simple user input.">WMessageBox</a> can be styled using the <code>Wt-dialog</code> and <code>Wt-outset</code> style classes from it's superclass <a class="el" href="classWt_1_1WDialog.html" title="A WDialog shows a dialog.">WDialog</a>. The messagebox' buttons can be styled using <code>Wt-msgbox-buttons</code> style class. </p>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a9d07bb99d17c38128c79f9c7ecd42963"></a><!-- doxytag: member="Wt::WMessageBox::addButton" ref="a9d07bb99d17c38128c79f9c7ecd42963" args="(const WString &text, StandardButton result)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classWt_1_1WPushButton.html">WPushButton</a> * Wt::WMessageBox::addButton </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>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> </td>
<td class="paramname"><em>result</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Add a custom button with given text. </p>
<p>When the button is clicked, the associated result will be returned. </p>
</div>
</div>
<a class="anchor" id="a0e95f906d321b5c5cb574abc25716aec"></a><!-- doxytag: member="Wt::WMessageBox::button" ref="a0e95f906d321b5c5cb574abc25716aec" args="(StandardButton b)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classWt_1_1WPushButton.html">WPushButton</a> * Wt::WMessageBox::button </td>
<td>(</td>
<td class="paramtype"><a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> </td>
<td class="paramname"><em>b</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Returns the button widget for the given standard button. </p>
<p>This may be useful to customize the style or layout of the button. </p>
</div>
</div>
<a class="anchor" id="ac07ce4dd360c8305cdc1e08642e32a7c"></a><!-- doxytag: member="Wt::WMessageBox::buttonResult" ref="ac07ce4dd360c8305cdc1e08642e32a7c" args="()" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> Wt::WMessageBox::buttonResult </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Returns the result of this message box. </p>
<p>This value is only defined after a button has been clicked. </p>
</div>
</div>
<a class="anchor" id="ab856f77f4e4369b5864390a1192c252d"></a><!-- doxytag: member="Wt::WMessageBox::show" ref="ab856f77f4e4369b5864390a1192c252d" args="(const WString &caption, const WString &text, WFlags< StandardButton > buttons, const WAnimation &animation=WAnimation())" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> Wt::WMessageBox::show </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"><em>caption</em>, </td>
</tr>
<tr>
<td class="paramkey"></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>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">WFlags< <a class="el" href="namespaceWt.html#a270a5e1af09979a6559f0f39e3d93062">StandardButton</a> > </td>
<td class="paramname"><em>buttons</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classWt_1_1WAnimation.html">WAnimation</a> & </td>
<td class="paramname"><em>animation</em> = <code><a class="el" href="classWt_1_1WAnimation.html">WAnimation</a>()</code> </td>
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<td>)</td>
<td></td><td><code> [static]</code></td>
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<p>Convenience method to show a message box, blocking the current thread. </p>
<p>Show a message box, blocking the current thread until the message box is closed, and return the result. The use of this method is not recommended since it uses <a class="el" href="classWt_1_1WDialog.html#aca20cf1a63cf08402f4c03c943e0c968" title="Executes the dialog in a recursive event loop.">WDialog::exec()</a>. See documentation of <a class="el" href="classWt_1_1WDialog.html" title="A WDialog shows a dialog.">WDialog</a> for detailed information. </p>
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<a class="anchor" id="ada70275e7f0d9fc067cd5a1c553a031f"></a><!-- doxytag: member="Wt::WMessageBox::textWidget" ref="ada70275e7f0d9fc067cd5a1c553a031f" args="() const " -->
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<td class="memname"><a class="el" href="classWt_1_1WText.html">WText</a>* Wt::WMessageBox::textWidget </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns the text widget. </p>
<p>This may be useful to customize the style or layout of the displayed text. </p>
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