#include <QtGui/qstyleoption.h>
#ifndef QSTYLEOPTION_H
#ifndef QT_NO_TABWIDGET
class QStyleOptionTabWidgetFrame: public QStyleOption{
   /* Some contents are skipped to improve readability */
   public: class QSize rightCornerWidgetSize;
   /* ... */
};
#endif
#endif // QSTYLEOPTION_H