pascalSCADA OPM: psOPCutils

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Unit psOPCutils

Description

Uses

Classes, Interfaces, Objects and Records

Functions and Procedures

Types

Constants

Variables

Description

Overview

Functions and Procedures

function ServerAddGroup(ServerIf: IOPCServer; Name: AnsiString; Active: BOOL; UpdateRate: DWORD; ClientHandle: OPCHANDLE; var GroupIf: IOPCItemMgt; var ServerHandle: OPCHANDLE): HResult;

function GroupAddItem(GroupIf: IOPCItemMgt; ItemID: AnsiString; ClientHandle: OPCHANDLE; DataType: TVarType; var ServerHandle: OPCHANDLE; var CanonicalType: TVarType): HResult;

function GroupRemoveItem(GroupIf: IOPCItemMgt; ServerHandle: OPCHANDLE): HResult;

function GroupAdviseTime(GroupIf: IUnknown; Sink: IAdviseSink; var AsyncConnection:Longword): HResult;

function GroupUnAdvise(GroupIf: IUnknown; AsyncConnection: Longint): HResult;

function GroupAdvise2(GroupIf: IUnknown; OPCDataCallback: IOPCDataCallback; var AsyncConnection:Longword): HResult;

function GroupUnadvise2(GroupIf: IUnknown; var AsyncConnection: Longword): HResult;

function ReadOPCGroupItemValue(GroupIf: IUnknown; ItemServerHandle: OPCHANDLE; var ItemValue: string; var ItemQuality: Word): HResult;

function WriteOPCGroupItemValue(GroupIf: IUnknown; ItemServerHandle: OPCHANDLE; ItemValue: OleVariant): HResult;

function WriteOPCGroupItemValues(GroupIf: IUnknown; ItemServerHandles: array of OPCHANDLE; ItemValues: array of OleVariant; var ItemErrors: array of HResult): HResult;

Description

Functions and Procedures

function ServerAddGroup(ServerIf: IOPCServer; Name: AnsiString; Active: BOOL; UpdateRate: DWORD; ClientHandle: OPCHANDLE; var GroupIf: IOPCItemMgt; var ServerHandle: OPCHANDLE): HResult;

{$IF CompilerVersion >= 14} {$IFEND}

function GroupAddItem(GroupIf: IOPCItemMgt; ItemID: AnsiString; ClientHandle: OPCHANDLE; DataType: TVarType; var ServerHandle: OPCHANDLE; var CanonicalType: TVarType): HResult;

function GroupRemoveItem(GroupIf: IOPCItemMgt; ServerHandle: OPCHANDLE): HResult;

function GroupAdviseTime(GroupIf: IUnknown; Sink: IAdviseSink; var AsyncConnection:Longword): HResult;

function GroupUnAdvise(GroupIf: IUnknown; AsyncConnection: Longint): HResult;

function GroupAdvise2(GroupIf: IUnknown; OPCDataCallback: IOPCDataCallback; var AsyncConnection:Longword): HResult;

function GroupUnadvise2(GroupIf: IUnknown; var AsyncConnection: Longword): HResult;

function ReadOPCGroupItemValue(GroupIf: IUnknown; ItemServerHandle: OPCHANDLE; var ItemValue: string; var ItemQuality: Word): HResult;

function WriteOPCGroupItemValue(GroupIf: IUnknown; ItemServerHandle: OPCHANDLE; ItemValue: OleVariant): HResult;

function WriteOPCGroupItemValues(GroupIf: IUnknown; ItemServerHandles: array of OPCHANDLE; ItemValues: array of OleVariant; var ItemErrors: array of HResult): HResult;

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