Creating device, connecting device

[collinurie]

I am building an application that interfaces with two different devices a camera and a scale. the scale I need to work with sends its output via HID USB and through research I have found that this library would be very helpful with completing that.
I am using Visual Studio and programming in C++/CLI. Aftere finding this library I am struggling with getting started. How would I initilize a device and then connect with the scale that is plugged into my computer?

Any help would be appreciated. Thank you guys!