pascalSCADA OPM: psOPCDA: Interface IOPCItemIO

Pascal SCADA OPM

Interface IOPCItemIO

Unit

psOPCDA

Declaration

type IOPCItemIO = interface(IUnknown)

Description

*********************************************************************// Interface: IOPCItemIO GUID: {85C0B427-2893-4cbc-BD78-E5FC5146F08F} *********************************************************************//

Attributes
GUID['{85C0B427-2893-4cbc-BD78-E5FC5146F08F}']

Hierarchy

  • IUnknown
  • IOPCItemIO

Overview

Methods

Public function Read( dwCount: DWORD; pszItemIDs: POleStrList; pdwMaxAge: PDWORDARRAY; out ppvValues: POleVariantArray; out ppwQualities: PWordArray; out ppftTimeStamps: PFileTimeArray; out ppErrors: PResultList): HResult; stdcall;
Public function WriteVQT( dwCount: DWORD; pszItemIDs: POleStrList; pItemVQT: POPCITEMVQTARRAY; out ppErrors: PResultList): HResult; stdcall;

Description

Methods

Public function Read( dwCount: DWORD; pszItemIDs: POleStrList; pdwMaxAge: PDWORDARRAY; out ppvValues: POleVariantArray; out ppwQualities: PWordArray; out ppftTimeStamps: PFileTimeArray; out ppErrors: PResultList): HResult; stdcall;
 
Public function WriteVQT( dwCount: DWORD; pszItemIDs: POleStrList; pItemVQT: POPCITEMVQTARRAY; out ppErrors: PResultList): HResult; stdcall;
 

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