By the way, THANK YOU, THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,THANK YOU,... a thousand times Sergey.

Between you, Herman, Borislav, Christian, and Carlos, I should be able to write to/read from the USB device directly. All I needed was the handle to the device and it was a BEAR getting it... (due to my own limitations of course) :o) Now on to createfile() and makefile()... *G* (Oh yeah, the guids were actually in usbbio.h and usbprint.h)



>Isn't the first one a device guid and the second one device INTERFACE guid?
>
>>Any idea what is the difference between lc_HidGuid and ls_HIdGuid in the below code? They are not the same values, but I cannot figure out why...
>>

>>#DEFINE GUID_Size  16
>>lc_HidGuid = SPACE( GUID_Size )
>>ls_HidGuid = SPACE( GUID_Size )
>>
>>*The GUID_DEVCLASS_HIDCLASS guid below is taken from devguid.h
>>*GUID_DEVCLASS_HIDCLASS, 0x745A17A0, 0x74D3, 0x11D0, 0xB6, 0xFE, 0x00, 0xA0, 0xC9, 0x0F, 0x57, 0xDA
>>#DEFINE GUID_DEVCLASS_HIDCLASS ;
>>	CHR(0xA0) + CHR(0x17) + CHR(0x5A) + CHR(0x74) + ;
>>	CHR(0xD3) + CHR(0x74) + CHR(0xD0) + CHR(0x11) + ;
>>	CHR(0xB6) + CHR(0xFE) + CHR(0x00) + CHR(0xA0) + ;
>>	CHR(0xC9) + CHR(0x0F) + CHR(0x57) + CHR(0xDA)
>>lc_hidGuid = GUID_DEVCLASS_HIDCLASS             && <--------------Check lc_hidGuid Value here
>>
>>DECLARE HidD_GetHidGuid IN HID ;
>>     STRING @ O_sHidGuid
>>HidD_GetHidGuid( @ls_HidGuid )                  && <--------------Check ls_HidGuid Value here
>>

>>Now compare the values of lc_hidGuid and ls_hidGuid, shouldn't they be the same?
>>
>>
>>http://msdn.microsoft.com/library/default.asp?url=/library/en-us/Hid_r/hh/HID_r/hidfunc_61242b6f-b794-48c7-84b8-ef8d0d4e69af.xml.asp
>>
>>HidD_GetHidGuid
>>The HidD_GetHidGuid routine returns the device interface GUID for HIDClass devices.
>>
>>VOID
>> HidD_GetHidGuid(
>> OUT LPGUID HidGuid
>> );
>>
>>
>>Parameters
>>
>>HidGuid
>>Pointer to a caller-allocated GUID buffer that the routine uses to return the device interface GUID for HIDClass devices.
>>
>>Return Value
>>None.
>>
>>Headers
>>Declared in hidsdi.h. Include hidsdi.h.
>>
>>Comments
>>Only user-mode applications can call HidD_GetHidGuid.