get the interface of network

[saber]

how can i get what interface is system is using to connect Internet??
i want to know if system using wifi or Ethernet to go online.

is there any way?

[sierdzio]

Check active configuration in QNAM: https://doc.qt.io/qt-5/qnetworkaccessmanager.html#activeConfiguration

And there, you can check BearerType. https://doc.qt.io/qt-5/qnetworkconfiguration.html#BearerType-enum

[saber]

@sierdzio i wrote this

qDebug()<< QNetworkConfiguration::Active;

output is "14" .

i am using my mobile Tethering .

[sierdzio]

You have just printed the int value of an enum ;-) That won't tell you anything.

QNetworkAccessManager manager;
const auto config = manager.activeConfiguration();
qDebug() << config.bearerType() << config.bearerTypeName();

[saber]

@sierdzio

thanks it's working.