SP_DEVICE_INTERFACE_DATA

C# Definition:

[StructLayout(LayoutKind.Sequential)]
  struct SP_DEVICE_INTERFACE_DATA
  {
    public  Int32    cbSize;
    public  Guid     interfaceClassGuid;
    public  Int32    flags;
    private UIntPtr  reserved;
  }

VB Definition:

<StructLayout(LayoutKind.Sequential)> _
Public Structure SP_DEVICE_INTERFACE_DATA
    Public cbSize         As UInteger
    Public interfaceClassGuid As Guid
    Public flags          As UInteger
    Public reserved       As IntPtr
End Structure