Universal Windows® Apps with XAML and C# Unleashed

Connecting to the Device

At this point in the chapter, you should be intimately familiar with the typical pattern for getting an instance of a HID device:

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async Task<HidDevice > GetHidDevice(ushort usagePage, ushort usageId) {   foreach (DeviceInformation deviceInfo in await     DeviceInformation.FindAllAsync(HidDevice .GetDeviceSelector(                                      usagePage, usageId)))   {     // Return the first one (null if user doesn't consent)     // Be sure to call FromIdAsync on the UI thread!     return await HidDevice .FromIdAsync(deviceInfo.Id, FileAccessMode .ReadWrite);   }   return null; }

HidDevice’s GetDeviceSelector method requires a usage page and usage ID, and there’s an overload that ...