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<title>A Tiny Example Featuring a Toggle Action</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>A Tiny Example Featuring a Toggle Action</h1>

 
<p> 
<p> This example program demonstrates the use of <a href="qaction.html">QAction</a>
in its incarnation as a toggle action.
<p> <hr>
<p> Main:
<p> <pre>#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
#include &lt;<a href="qmainwindow-h.html">qmainwindow.h</a>&gt;
#include &lt;<a href="qtoolbar-h.html">qtoolbar.h</a>&gt;
#include &lt;<a href="qaction-h.html">qaction.h</a>&gt;

#include "labelonoff.xpm"

int main( int argc, char **argv )
{
    <a href="qapplication.html">QApplication</a> app( argc, argv );
    <a href="qmainwindow.html">QMainWindow</a> * window = new <a href="qmainwindow.html">QMainWindow</a>;
    window-&gt;<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Toggleaction");
    <a href="qtoolbar.html">QToolBar</a> * toolbar = new <a href="qtoolbar.html">QToolBar</a>( window );

    <a href="qaction.html">QAction</a> * labelonoffaction = new <a href="qaction.html">QAction</a>( window, "labelonoff" );
<a name="x2975"></a>    labelonoffaction-&gt;<a href="qaction.html#setToggleAction">setToggleAction</a>( TRUE );

<a name="x2974"></a>    labelonoffaction-&gt;<a href="qaction.html#setText">setText</a>( "labels on/off" );
<a name="x2972"></a>    labelonoffaction-&gt;<a href="qaction.html#setAccel">setAccel</a>( Qt::ALT+Qt::Key_L );
<a name="x2973"></a>    labelonoffaction-&gt;<a href="qaction.html#setIconSet">setIconSet</a>( (QPixmap) labelonoff_xpm );

<a name="x2976"></a>    QObject::<a href="qobject.html#connect">connect</a>( labelonoffaction, SIGNAL( <a href="qaction.html#toggled">toggled</a>( bool ) ),
<a name="x2979"></a>                      window, SLOT( <a href="qmainwindow.html#setUsesTextLabel">setUsesTextLabel</a>( bool ) ) );

<a name="x2971"></a>    labelonoffaction-&gt;<a href="qaction.html#addTo">addTo</a>( toolbar );

    app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( window );
    window-&gt;<a href="qwidget.html#show">show</a>();
    return app.<a href="qapplication.html#exec">exec</a>();
}

</pre>

<p>See also <a href="qaction-examples.html">QAction Examples</a>.

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