#include <QtNetwork/qnetworkinterface.h>
#ifndef QNETWORKINTERFACE_H
class QNetworkInterface{
   /* Some contents are skipped to improve readability */
   public: enum InterfaceFlag{
      IsUp = 1,
      IsRunning = 2,
      CanBroadcast = 4,
      IsLoopBack = 8,
      IsPointToPoint = 16,
      CanMulticast = 32,
   };
   /* ... */
};
#endif