namespace OPCDA.Interface { using System; using System.Runtime.InteropServices; [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode, Pack=2)] public class OPCITEMPROPERTY { public short vtDataType; public short wReserved; public int dwPropertyID; public string szItemID; public string szDescription; public object vValue; public int hrErrorID; public int dwReserved; } }