ShowMaximized() by a hot-key

[araglin]

Hello!
Please help!
here is code, compiled ok but don't work...

I insert it in constructor of mainWindow:

QAction *a = new QAction(this);
a->setShortcut(QKeySequence(Qt::Key_F11));
a->setShortcutContext(Qt::ApplicationShortcut);
connect(a, SIGNAL(triggered() ), this, SLOT(showMaximized() ) );

QAction *a = new QAction(this);
a->setShortcut(QKeySequence(Qt::Key_F11));
a->setShortcutContext(Qt::ApplicationShortcut);
connect(a, SIGNAL(triggered() ), this, SLOT(showMaximized() ) );

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Thanks!