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WBF SensorAdapterFinishCapture problem on Windows 7

    Question

  • In Windows 7 SP1 operating systems when I return WINBIO_E_INVALID_DEVICE_STATE or WINBIO_E_DEVICE_FAILURE at SensorAdapterFinishCapture function, my sensor adapter get freeze. To recover this I need to reconnect the device or restart the Windows Biometric Service manually. For all other return values it works in expected paths.

    In my original code SensorAdapterFinishCapture function return ERROR_GEN_FAILURE and I change it like this:

    if (hr == ERROR_GEN_FAILURE)
    {
      // biometric device is not available or not responsive.
      hr = WINBIO_E_DEVICE_FAILURE; 
    }

    After above change I ran into this problem.

    Is this is known issue?, or are there any workaround exists for this issue?

    • Moved by Shu 2017 Wednesday, December 17, 2014 6:32 AM WBF issue
    Tuesday, December 16, 2014 5:42 AM

Answers