#include <QApplication>
#include <QAction>
#include <QWidget>

int main(int a,char** b)
{
    QApplication app(a,b);
    QWidget wgt;
    QAction action(&wgt);
    action.setShortcut(QObject::tr("Ctrl+O")); 
    QObject::connect(&action,SIGNAL(triggered()),&app,SLOT(quit()));
    wgt.addAction(&action);
    wgt.show();
    return app.exec();
}

openAct = new QAction(QIcon(":/images/open.png"), tr("&Open..."), this);
openAct->setShortcut(tr("Ctrl+O"));
openAct->setStatusTip(tr("Open an existing file"));
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));

fileMenu->addAction(openAct);
fileToolBar->addAction(openAct);