#include <QtGui/qevent.h>
#ifndef QEVENT_H
class QFocusEvent: public QEvent{
   /* Some contents are skipped to improve readability */
   public: QFocusEvent(enum QEvent::Type type, enum Qt::FocusReason reason = Qt::OtherFocusReason);
   /* ... */
};
#endif // QEVENT_H