C# Definition:

    [Guid("2A07407E-6497-4A18-9787-32F79BD0D98F"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IDeviceTopology
    {
    int GetConnectorCount([Out] out int pConnectorCount);
    int GetConnector(int nIndex, out IConnector ppConnector);
    int GetSubunitCount([Out] out int pCount);
    int GetSubunit(int nIndex, out ISubunit ppSubunit);
    int GetPartById(int nId, out IPart ppPart);
    int GetDeviceId([Out, MarshalAs(UnmanagedType.LPWStr)] out string ppwstrDeviceId);
    int GetSignalPath(IPart pIPartFrom, IPart pIPartTo, bool bRejectMixedPaths, IPartsList ppParts);
    }

VB Definition:

<ComImport> _
<Guid("TODO")> _
'TODO: Insert <InterfaceType(ComInterfaceType.InterfaceIsIUnknown)> _ if this doesn't derive from IDispatch
Interface IDeviceTopology
   TODO
End Interface

User-Defined Types:

None.

Notes:

Starting point only - I only got as far as making getconnectorcount and getconnector return valid information on my machine. The other functions may or may not work!

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