Why doesn't Gamepad.GetCurrentReading () work?

Question

I created a UWP application that uses a namespace Windows.Gaming.Input, but when I deploy it to my Raspberry Pi 2 B using the Windows 10 IoT kernel, the method Gamepad.GetCurrentReading()returns a GamepadReadingdefault instance , (i.e. all 0)

Debugging on my local machine seems to work. Is there anything extra needed for this API to work on my device?

PS I noticed that one of the examples uses HidDevice , so I will consider this as an alternative in average time.

Answer 1

() . Gamepad.

class HidGamepad
{
    static readonly List<HidGamepad> _gamepads = new List<HidGamepad>();
    GamepadReading _currentReading;

    static HidGamepad()
    {
        var deviceSelector = HidDevice.GetDeviceSelector(0x01, 0x05);
        var watcher = DeviceInformation.CreateWatcher(deviceSelector);
        watcher.Added += HandleAdded;
        watcher.Start();
    }

    private HidGamepad(HidDevice device)
    {
        device.InputReportReceived += HandleInputReportRecieved;
    }

    public static event EventHandler<HidGamepad> GamepadAdded;

    public static IReadOnlyList<HidGamepad> Gamepads
        => _gamepads;

    public GamepadReading GetCurrentReading()
        => _currentReading;

    static async void HandleAdded(DeviceWatcher sender, DeviceInformation args)
    {
        var hidDevice = await HidDevice.FromIdAsync(args.Id, FileAccessMode.Read);
        if (hidDevice == null) return;

        var gamepad = new HidGamepad(hidDevice);
        _gamepads.Add(gamepad);
        GamepadAdded?.Invoke(null, gamepad);
    }

    void HandleInputReportRecieved(
        HidDevice sender, HidInputReportReceivedEventArgs args)
    {
        var leftThumbstickX = args.Report.GetNumericControl(0x01, 0x30).Value;
        var leftThumbstickY = args.Report.GetNumericControl(0x01, 0x31).Value;

        _currentReading = new GamepadReading
        {
            LeftThumbstickX = (leftThumbstickX - 32768) / 32768.0,
            LeftThumbstickY = (leftThumbstickY - 32768) / -32768.0
        };
    }
}