pascalSCADA OPM: psOPCDA: Interface IOPCAsyncIO

Pascal SCADA OPM

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Interface IOPCAsyncIO

Description

Hierarchy

Fields

Methods

Properties

Unit

psOPCDA

Declaration

type IOPCAsyncIO = interface(IUnknown)

Description

*********************************************************************// Interface: IOPCAsyncIO GUID: {39C13A53-011E-11D0-9675-0020AFD8ADB3} *********************************************************************//

Attributes

GUID['{39C13A53-011E-11D0-9675-0020AFD8ADB3}']

Hierarchy

IUnknown
IOPCAsyncIO

Overview

Methods

	`function Read( dwConnection: DWORD; dwSource: OPCDATASOURCE; dwCount: DWORD; phServer: POPCHANDLEARRAY; out pTransactionID: DWORD; out ppErrors: PResultList): HResult; stdcall;`
	`function Write( dwConnection: DWORD; dwCount: DWORD; phServer: POPCHANDLEARRAY; pItemValues: POleVariantArray; out pTransactionID: DWORD; out ppErrors: PResultList): HResult; stdcall;`
	`function Refresh( dwConnection: DWORD; dwSource: OPCDATASOURCE; out pTransactionID: DWORD): HResult; stdcall;`
	`function Cancel( dwTransactionID: DWORD): HResult; stdcall;`

Description

Methods

	`function Read( dwConnection: DWORD; dwSource: OPCDATASOURCE; dwCount: DWORD; phServer: POPCHANDLEARRAY; out pTransactionID: DWORD; out ppErrors: PResultList): HResult; stdcall;`

	`function Write( dwConnection: DWORD; dwCount: DWORD; phServer: POPCHANDLEARRAY; pItemValues: POleVariantArray; out pTransactionID: DWORD; out ppErrors: PResultList): HResult; stdcall;`

	`function Refresh( dwConnection: DWORD; dwSource: OPCDATASOURCE; out pTransactionID: DWORD): HResult; stdcall;`

	`function Cancel( dwTransactionID: DWORD): HResult; stdcall;`

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