#include <QtNetwork/qabstractsocket.h>
#ifndef QABSTRACTSOCKET_H
class QAbstractSocket: public QIODevice{
   /* Some contents are skipped to improve readability */
   public: bool setSocketDescriptor(int socketDescriptor, enum QAbstractSocket::SocketState state = QAbstractSocket::ConnectedState, class QFlags < enum QIODevice::OpenModeFlag > openMode = QIODevice::ReadWrite);
   /* ... */
};
#endif // QABSTRACTSOCKET_H