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    <StructLayout(LayoutKind.Sequential, Pack := 1)> _
    Public Structure SP_DEVICE_INTERFACE_DETAIL_DATA
      Public cbSize As UInt32
      <MarshalAs(UnmanagedType.ByValTStr, SizeConst := 256)> _
      Public DevicePath As String
    End Structure                    

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  TSP_DEVICE_INTERFACE_DETAIL_DATA = packed record
    cbSize: integer;
    DevicePath: string;
  end;