#include <QtGui/qdialogbuttonbox.h>
#ifndef QDIALOGBUTTONBOX_H
class QDialogButtonBox: public QWidget{
   /* Some contents are skipped to improve readability */
   public: enum ButtonLayout{
      WinLayout = 0,
      MacLayout = 1,
      KdeLayout = 2,
      GnomeLayout = 3,
   };
   /* ... */
};
#endif // QDIALOGBUTTONBOX_H