no matching showTearOffMenu convenience function for hideTearOffMenu

/*!
   This function will forcibly show the torn off menu making it
   appear on the users desktop.

   \sa hideTearOffMenu() isTearOffMenuVisible() isTearOffEnabled()
*/
void QMenu::showTearOffMenu(QPoint *pos)
{
    if (!d_func()->tornPopup)
        d_func()->tornPopup = new QTornOffMenu(this);
    QSize s = sizeHint();
    QPoint p;
    if(NULL != pos) {
        p.setX(pos->x());
        p.setY(pos->y());
    } else {
        p = QCursor::pos();
    }
    d_func()->tornPopup->setGeometry(p.x(), p.y(), s.width(), s.height());
    d_func()->tornPopup->show();
}

void showTearOffMenu(QPoint *pos=0);