SetupDiGetClassDevs always returns ERROR_IO_PENDING

Posted: 07-29-2003, 01:03 AM

Jerry West

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Posts: n/a

I'm calling SetupDiGetClassDevs to get a handle to a device information set
like so:

hWnd& = SetupDiGetClassDevs(0&, 0&, 0&, &H4)

This always returns an error of 997: ERROR_IO_PENDING

Why does this happen? I still get a return value in hWnd&. Did it fail?

JW

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