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namespace OPCDA.Interface
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{
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using System;
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using System.Runtime.InteropServices;
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[ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("85C0B427-2893-4cbc-BD78-E5FC5146F08F"), ComVisible(true)]
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internal interface IOPCItemIO
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{
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[PreserveSig]
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int Read(int Count, [In, MarshalAs(UnmanagedType.LPArray, ArraySubType=UnmanagedType.LPWStr, SizeParamIndex=0)] string[] pszItemIDs, [In, MarshalAs(UnmanagedType.LPArray, ArraySubType=UnmanagedType.I4, SizeParamIndex=0)] int[] pdwMaxAge, out IntPtr ppvValues, out IntPtr ppwQualities, out IntPtr ppftTimeStamps, out IntPtr ppErrors);
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[PreserveSig]
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int WriteVQT([In] int dwCount, [In, MarshalAs(UnmanagedType.LPArray, ArraySubType=UnmanagedType.LPWStr, SizeParamIndex=0)] string[] pszItemIDs, [In] IntPtr pItemVQT, out IntPtr ppErrors);
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}
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}
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