#include <QtNetwork/qabstractsocket.h>
#ifndef QABSTRACTSOCKET_H
class QAbstractSocket: public QIODevice{
   /* Some contents are skipped to improve readability */
   public: void connectToHost(struct QHostAddress const & address, quint16 port, class QFlags < enum QIODevice::OpenModeFlag > mode = QIODevice::ReadWrite);
   /* ... */
};
#endif // QABSTRACTSOCKET_H