#include <QtGui/qapplication.h>
#ifndef QAPPLICATION_H
class QApplication: public QCoreApplication{
   /* Some contents are skipped to improve readability */
   public: enum ColorSpec{
      NormalColor = 0,
      CustomColor = 1,
      ManyColor = 2,
   };
   /* ... */
};
#endif // QAPPLICATION_H