Windows Store App (WinRT) with DS6878

I'm a developer trying to connect a DS6878-HC to a windows store app that we're building.  The examples that the SDK shows are all for Windows Forms or WPF applications.  I'm not sure if it's something that I have misconfigured on the barcode scanner, or if this is not possible.  From what I gather, as long as the barcode scanner adheres to the USB HID POS Scanner specification, I should be fine. That's why I think it's a configuration thing on my end.


Specifically, I'm trying to use this library:


It's all wrapped up in this application example, but I can't connect to the scanner:


I'd really appreciate any help you could offer.