Win32 method HidD_GetHidGuid question

Hi to all!

I am working on driver for integrated Bluetooth component on my HP ProBook 4520s. I've downloaded some sample USB communication c# code, which works with USB devices of clas HID. To get information about particular HID device, Win32 HidD_GetHidGuid method must be called to get GUID of HID device. Is there any other method with same purpose for USB Bluetooth class devices?

Sincerely,
Marko