Determining the VID/PID of a TWAIN source?

[aturkelson]

Is there any way to reconcile a TWAIN source with its device VID/PID?

Using the TW_IDENTITY ProductName field isn’t reliable as most TWAIN drivers seem to provide a different string than that which is made available by calls to SetupDiGetDeviceRegistryProperty (SPDRP_FRIENDLYNAME or SPDRP_DEVICEDESC) in setupapi.h (windows).

Any thoughts/ideas?

Thanks!
-Adam

[gabe]

if you can use SPDRP_DRIVER to get the driver && it points to a .ds then yes as there is a way to get the .ds related to a twain device. but I don’t think this will work 100% as I don’t think all twain devices register that kind of info.

// no experience in doing any of the above, i’m just guessing here

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