'Declaration
 
Public Function New( _
   ByVal machineName As String, _
   ByVal serverClass As String, _
   ByVal itemId As String, _
   ByVal dataType As VarType, _
   ByVal valueAge As Integer _
)

'Usage
 
Dim machineName As String
Dim serverClass As String
Dim itemId As String
Dim dataType As VarType
Dim valueAge As Integer
 
Dim instance As New DAReadItemArguments(machineName, serverClass, itemId, dataType, valueAge)

public DAReadItemArguments( 
   string machineName,
   string serverClass,
   string itemId,
   VarType dataType,
   int valueAge
)

public:
DAReadItemArguments( 
   String^ machineName,
   String^ serverClass,
   String^ itemId,
   VarType^ dataType,
   int valueAge
)

Parameters

machineName

Name of the machine. Determines the computer on which the OPC server is located. May be an empty string, in which case the OPC server is assumed to exist on the local computer or at the computer specified for it by DCOM configuration.

serverClass

Contains ProgID of the OPC server.

itemId

Contains OPC item identifier.

dataType

Specifies the data type requested. Passing OpcLabs.BaseLib.ComInterop.VarTypes.Empty means that the server's canonical data type should be used.

valueAge

Determines the age of value you would like to obtain (in milliseconds).

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012, Windows Server 2016; .NET Core, .NET 5, .NET 6: Linux, macOS, Microsoft Windows

Reference

DAReadItemArguments Class
DAReadItemArguments Members
Overload List