C# Definition:

    /// <summary>Keyboard Layout API</summary>
    public enum HKL
    {
     /// <summary>
     /// Selects the previous locale identifier in the circular list of loaded locale identifiers maintained by the system
     /// </summary>
     HKL_PREV = 0,
     /// <summary>
     /// Selects the next locale identifier in the circular list of loaded locale identifiers maintained by the system
     /// </summary>
     HKL_NEXT = 1
    }

VB Definition:

Enum HKL Keyboard Layout API
   TODO
End Enum

Notes:

None.