if (!device.isEmpty()) m_configCapture.kcfg_video4vdevice->setText(device);
QString size = m_configCapture.kcfg_detectedv4ldevices->itemData(m_configCapture.kcfg_detectedv4ldevices->currentIndex(), Qt::UserRole + 1).toString();
if (!size.isEmpty()) m_configCapture.kcfg_video4size->setText(size);
+ rebuildVideo4Commands();
}