有没有更简单的方法让键盘输入返回一个字符(SFML)？

#include <SFML/Graphics.hpp>
#include <iostream>

int main()
{
    sf::RenderWindow window(sf::VideoMode(800, 600), "SFML Keyboard Input");

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();

            if (event.type == sf::Event::TextEntered)
            {
                if (event.text.unicode < 128)
                {
                    std::cout << static_cast<char>(event.text.unicode) << std::endl;
                }
            }
        }

        window.clear();
        window.display();
    }

    return 0;
}