void vc_widget::keyPressEvent(QKeyEvent *ev)
{
if (ev->key() == Qt::Key_Up)
{
qDebug() << "press key up";
return;
}
if (ev->key() == Qt::Key_Down)
{
qDebug() << "press key down";
return;
}
if (ev->key() == Qt::Key_Left)
{
qDebug() << "press key left";
return;
}
if (ev->key() == Qt::Key_Right)
{
qDebug() << "press key right";
return;
}
}