I perfected the DDK inside StorageEnum routine, you can enumerate and read out the USB device VID, PID information (see the annex to the picture storageNum.JPG), the key point is the definition of ClassGuid, the troubled but more than N Oh the problem.

DoStorageEnum.cpp
DoStorageEnum.h
MainFrm.cpp
MainFrm.h
ReadMe.txt
res

...\StorageEnum.rc2


Resource.h
StdAfx.cpp
StdAfx.h
StorageEnum.aps
StorageEnum.cpp
StorageEnum.dsp
StorageEnum.dsw
StorageEnum.h
StorageEnum.ncb
StorageEnum.opt
StorageEnum.plg
StorageEnum.rc
StorageEnumDoc.cpp
StorageEnumDoc.h
StorageEnumView.cpp
StorageEnumView.h

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