#include <QtCore/qthread.h>
#ifndef QTHREAD_H
#ifndef QT_NO_THREAD
class QThread: public QObject{
   /* Some contents are skipped to improve readability */
   public: bool isFinished() const
   /* ... */
};
#else // QT_NO_THREAD
#endif // QT_NO_THREAD
#endif // QTHREAD_H