'Declaration
Public Function New( _ ByVal machineName As String, _ ByVal serverClass As String, _ ByVal itemId As String, _ ByVal dataType As VarType, _ ByVal valueAge As Integer, _ ByVal state As Object _ )
'Usage
Dim machineName As String Dim serverClass As String Dim itemId As String Dim dataType As VarType Dim valueAge As Integer Dim state As Object Dim instance As New DAReadItemArguments(machineName, serverClass, itemId, dataType, valueAge, state)
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).
- state
- The state object (can be any value supplied by your code); available in event notifications.