DBT-120/Widcomm Bluetooth stack hacking.

Hi,

I want to write a really simple app, which just logs the bluetooth
addresses of devices it sees, I've got a DBT-120 with the WidComm
software, there seems to be no resources on this available anywhere on
the net, but I could be 1500USD and get an SDK. That I'm not
interested in doing.

Fishing around with OLEViewer, there seems to be various BT COM
objects which would give me what I want, but I don't seem to have
quite enough information, or I'm doing something very wrong.

Does anyone have any information on thes objects?

The IBTGAPApi seems to be the appropriate interface, which has
GAPStartInquiry/GAOStopInquiry methods aswell as Events for Devices
being found and lost.

Currently though if I try and start an inquiry I just get an error
code which I obviously don't understand, does anyone know anything
about these methods, or some other way of achieving my aims with this
hardware?

Cheers,

Jim.