UWP C＃：从配置文件中保存并加载Virtualkey

Question

我第一次使用通用Windows应用程序并希望在某些事件中从配置文本文件中保存和加载Virtualkeys。我已经设置了写作部分但我仍然坚持如何将“密钥字符串”从文本文件转换为Virtualkey。

一些缩短的代码，以便更好地理解：

    private IDictionary<GamepadButtons, VirtualKey> assignedButtons = new Dictionary<GamepadButtons, VirtualKey>();

    // Read keys from dic
    private void GetKeys()
    {
        if (assignedButtons.ContainsKey(GamepadButtons.Aux1)) { aux1_str = (assignedButtons[GamepadButtons.Aux1]).ToString(); } else if (!assignedButtons.ContainsKey(GamepadButtons.Aux1)) { aux1_str = "0"; }
    }

    // Write config file
    async private void WriteConfig()
    {
        appfolder = ApplicationData.Current.LocalFolder;
        try
        {
            config = await appfolder.CreateFileAsync("config.ini", CreationCollisionOption.ReplaceExisting);
            var writer = await config.OpenStreamForWriteAsync();
            string[] paddles = { aux1_str };
            using (StreamWriter ConfigWriter = new StreamWriter(writer)) { foreach (string line in paddles) ConfigWriter.WriteLine(line); }
        }
        catch { };
    }

    // Read config text file
    async private void GetConfig()
    {
        appfolder = ApplicationData.Current.LocalFolder;
        try
        {
            config = await appfolder.GetFileAsync("config.ini");
            var reader = await config.OpenStreamForReadAsync();
            StreamReader ConfigReader = new StreamReader(reader);
            aux1_str = ConfigReader.ReadLine();
        }
        catch { };
    }

    // Assign keys 
    private void PushKeys()
    {
        assignedButtons[GamepadButtons.Aux1] = ???
    }

现在，如果我可以访问System.Windows.Forms或者如果我可以使用MapVirtualKey，那么我可能知道我的方法，但是UWP都不是。

任何想法如何解决这个问题？也许有更好的方法将Virtualkey存储到文本文件（数字）？再次，由于应用程序是UWP，我有点卡住了。

谢谢和最诚挚的问候！