🚀 go-pugleaf

I need to be able to iterate every device on a Win2K or later
installation and obtain a CreateFile() compatible path for those that
are block devices. I can get the path for all the devices of a specific
class and WINIOCTL.H contains definitions for some class GUIDs.
Unfortunately it doesn't define a GUID that works for Dell internal
floppy disks and nor does it define a GUID for the tape drive we
currently have attached to a fibre optic channel.

The biggest impediment for our code at the moment is that
SetupDiEnumDeviceInterfaces() requires a class GUID. As I become more
familiar with this family of functions I can begin to see why but it's
still a problem for us. In lieu of a more helpful function we need to
find out how get a list of available class GUIDs from the registry.

Does anyone know where we should be looking in the registry?

-- 
Andrue Cope [TeamB]
[Bicester, Uk]
http://info.borland.com/newsgroups/guide.html