#ifndef APPLICATION_H#define APPLICATION_H#include <QApplication>class TicTacToe;class Application : public QApplication{    Q_OBJECTpublic:    Application(int &argc, char *argv[]);    void setTicTacToe(TicTacToe *toe);    void saveState(QSessionManager &sessionManager);    void commitData(QSessionManager &sessionManager);private:    TicTacToe *ticTacToe;};#endif