//! [0]
QToolButton *button = new QToolButton;
button->setIcon(QIcon("open.xpm"));
//! [0]


//! [1]
button->setIcon(QIcon());
//! [1]


//! [2]
void MyWidget::drawIcon(QPainter *painter, QPoint pos)
{
    QPixmap pixmap = icon.pixmap(QSize(22, 22),
                                   isEnabled() ? QIcon::Normal
                                               : QIcon::Disabled,
                                   isOn() ? QIcon::On
                                          : QIcon::Off);
    painter->drawPixmap(pos, pixmap);
}
//! [2]