How To Get System Network Interface List in using qt4.5

[Lykurg]

Ok, you do something like that:

QComboBox *box = new QComboBox(this);
QList<QNetworkInterface> list = QNetworkInterface::allInterfaces(); 
foreach (QNetworkInterface iface, list)
{
    box->addItem(iface.name());
}

QComboBox *box = new QComboBox(this);
QList<QNetworkInterface> list = QNetworkInterface::allInterfaces(); 
foreach (QNetworkInterface iface, list)
{
    box->addItem(iface.name());
}

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And then? Which slot is connected to currentIndexChanged()? It's highly probably that the error occurs there. But without any code it's hardly to say. Maybee you could also send the debugger output...