#include suicidal virtual class QGrid : virtual QFrame { enum Direction { Horizontal, Vertical }; QGrid(int, QWidget * = 0, const char * = 0, Qt::WFlags = 0); QGrid(int, QGrid::Direction, QWidget * = 0, const char * = 0, Qt::WFlags = 0); void setSpacing(int); protected: virtual void frameChanged(); } Qt::Grid;