use static_cast instead

Yuhang Zhao

2023-12-07 005c4e953127365980c6079acc52c874894fba1b

 examples/mainwindow/mainwindow.h

@@ -7,6 +7,9 @@
public:
    explicit MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

protected:
    void installWindowAgent();
};

#endif // MAINWINDOW_H