improve readability

Zhao Yuhang

2023-12-17 61f65f23ffee628344fb9ebb0f71e1d7c480976b

 examples/mainwindow/mainwindow.h

@@ -4,11 +4,15 @@
#include <QtWidgets/QMainWindow>

class MainWindow : public QMainWindow {
    Q_OBJECT
public:
    explicit MainWindow(QWidget *parent = nullptr);
    ~MainWindow();
    ~MainWindow() override;

protected:
    bool event(QEvent *event) override;

private:
    void installWindowAgent();
};