如何在Qt中的会话之间存储窗口大小？

#include <QApplication>
#include <QMainWindow>
#include <QSettings>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QMainWindow window;

    // 加载之前保存的窗口大小
    QSettings settings("MyCompany", "MyApp");
    window.resize(settings.value("size", QSize(800, 600)).toSize());
    window.move(settings.value("pos", QPoint(100, 100)).toPoint());

    // 当窗口大小发生变化时保存新的大小和位置
    QObject::connect(&window, &QMainWindow::resize, [&settings, &window]() {
        settings.setValue("size", window.size());
        settings.setValue("pos", window.pos());
    });

    window.show();
    return app.exec();
}