how to access control\class\instance key

Discussion in 'Windows Vista Drivers' started by Gary Li, Mar 17, 2006.

  1. Gary Li

    Gary Li Guest

    Anyone may give me some suggestion about the better way to acess the device
    key under the control\class\{class guid}\xxxx ? The Advanced tab in device
    manager wrote the parameter values from GUI into control\class key, I have to
    get the values from there.

    IoOpenDeviceRegistryKey() can access the device parameters either under
    \enum key or under \service key, but cannot access control\class key.

    Do I have to use ZwOpenKey() ?

    Thanks

    -Gary
     
    Gary Li, Mar 17, 2006
    #1
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  2. IoOpenDeviceRegistryKey does not open the \service key.
     
    Doron Holan [MS], Mar 17, 2006
    #2
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  3. IoOpenDeviceRegistryKey() can access the device parameters either under
    IoOpenDeviceRegistryKey/PLUGPLAY_REGKEY_DRIVER opens the control\class key.
     
    Maxim S. Shatskih, Mar 17, 2006
    #3
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