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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/reggie/tmp/qt-3.0-reggie-5401/qt-x11-commercial-3.0.5/examples/action/toggleaction/toggleaction.doc:1 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>A Tiny Example Featuring a Toggle Action</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: #ffffff; color: black; }--></style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr bgcolor="#E5E5E5"><td valign=center> <a href="index.html"><font color="#004faf">Home</font></a> | <a href="classes.html"><font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> | <a href="annotated.html"><font color="#004faf">Annotated</font></a> | <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"><font color="#004faf">Functions</font></a></td><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 <<a href="qapplication-h.html">qapplication.h</a>>#include <<a href="qmainwindow-h.html">qmainwindow.h</a>>#include <<a href="qtoolbar-h.html">qtoolbar.h</a>>#include <<a href="qaction-h.html">qaction.h</a>>#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-><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", TRUE );<a name="x2808"></a> labelonoffaction-><a href="qaction.html#setText">setText</a>( "labels on/off" );<a name="x2806"></a> labelonoffaction-><a href="qaction.html#setAccel">setAccel</a>( Qt::ALT+Qt::Key_L );<a name="x2807"></a> labelonoffaction-><a href="qaction.html#setIconSet">setIconSet</a>( (QPixmap) labelonoff_xpm );<a name="x2809"></a> QObject::<a href="qobject.html#connect">connect</a>( labelonoffaction, SIGNAL( <a href="qaction.html#toggled">toggled</a>( bool ) ),<a name="x2812"></a> window, SLOT( <a href="qmainwindow.html#setUsesTextLabel">setUsesTextLabel</a>( bool ) ) );<a name="x2805"></a> labelonoffaction-><a href="qaction.html#addTo">addTo</a>( toolbar ); app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( window ); window-><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>.<!-- eof --><p><address><hr><div align=center><table width=100% cellspacing=0 border=0><tr><td>Copyright © 2002 <a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align=right><div align=right>Qt version 3.0.5</div></table></div></address></body></html>⌨️ 快捷键说明
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