#include <QtGui/qundogroup.h> #ifndef QUNDOGROUP_H #ifndef QT_NO_UNDOGROUP class QUndoGroup: public QObject{ /* Some contents are skipped to improve readability */ public: static inline class QString tr(char const * s, char const * c, int n); /* ... */ }; #endif // QT_NO_UNDOGROUP #endif // QUNDOGROUP_H