#ifndef ABOUTWINDOW_H #define ABOUTWINDOW_H #include namespace Ui { class AboutWindow; } class AboutWindow : public QMainWindow { Q_OBJECT public: explicit AboutWindow(QWidget *parent = 0); ~AboutWindow(); private: Ui::AboutWindow *ui; // ESC pressed event void keyPressEvent(QKeyEvent *pressedKey); }; #endif /* ABOUTWINDOW_H */