#include <QtCore/qfsfileengine.h>
#ifndef QFSFILEENGINE_H
class QFSFileEngine: public QAbstractFileEngine{
   /* Some contents are skipped to improve readability */
   public: bool open(class QFlags < enum QIODevice::OpenModeFlag > flags, FILE* fh);
   /* ... */
};
#endif // QFSFILEENGINE_H