如何禁用QWizard所有页面的后退按钮？

#include <QWizard>
#include <QAbstractButton>

class MyWizard : public QWizard
{
public:
    MyWizard(QWidget *parent = nullptr) : QWizard(parent) {}

protected:
    void initializePage(int id) override
    {
        QWizard::initializePage(id);

        // 获取后退按钮
        QAbstractButton *backButton = button(QWizard::BackButton);
        if (backButton) {
            // 设置后退按钮为不可见和不可用
            backButton->setVisible(false);
            backButton->setEnabled(false);
        }
    }
};