public static extern uint WinBioEnumServiceProviders(WINBIO_BIOMETRIC_TYPE Factor, ref IntPtr BspSchemaArray, ref int BspCount);
public static extern uint WinBioEnumBiometricUnits(WINBIO_BIOMETRIC_TYPE Factor, ref IntPtr UnitSchemaArray, ref int UnitCount);
public static extern uint WinBioEnumDatabases(WINBIO_BIOMETRIC_TYPE Factor, ref IntPtr StorageSchemaArray, ref int StorageCount);
public static extern uint WinBioOpenSession(WINBIO_BIOMETRIC_TYPE Factor, WINBIO_POOL_TYPE PoolType, WINBIO_SESSION_FLAGS Flags, IntPtr UnitArray, int UnitCount, int DatabaseId, ref IntPtr SessionHandle);