OPC Studio User's Guide and Reference
ServerDescriptor Constructor(String,String)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc Namespace > ServerDescriptor Class > ServerDescriptor Constructor : ServerDescriptor Constructor(String,String)
Name of the machine. Determines the computer on which the OPC server is located. It 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.
Contains the object ID of the OPC server. The object ID is either the server's ProgID, or its {CLSID}, or ProgID/{CLSID}.
Initializes a new instance of the ServerDescriptor class.Initializes a new instance of the class, with specified machine name and object ID.
Syntax
'Declaration
 
Public Function New( _
   ByVal machineName As String, _
   ByVal objectId As String _
)
'Usage
 
Dim machineName As String
Dim objectId As String
 
Dim instance As New ServerDescriptor(machineName, objectId)
public ServerDescriptor( 
   string machineName,
   string objectId
)
public:
ServerDescriptor( 
   String^ machineName,
   String^ objectId
)

Parameters

machineName
Name of the machine. Determines the computer on which the OPC server is located. It 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.
objectId
Contains the object ID of the OPC server. The object ID is either the server's ProgID, or its {CLSID}, or ProgID/{CLSID}.
Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also