#include <QtGui/qdial.h>
#ifndef QDIAL_H
#ifndef QT_NO_DIAL
class QDial: public QAbstractSlider{
   /* Some contents are skipped to improve readability */
   private: inline struct QDialPrivate* d_func();
   /* ... */
};
#endif  // QT_NO_DIAL
#endif // QDIAL_H