Get information about all server instances (UA sessions) or the requested server instance only. This information may be used to identify the client application, especially when the client application defines a name using the SetClientName OPC method.
Be aware the the client name cannot yet be defined during the instance creation (ServerInstancesChange call for creation). The client application has to call SetClientName() to define the name. The client handle is passed as an argument to the plugin methods ValidateItems and WriteItems to enable the server to allow/deny the access based on the instance information.
Overload List
| Overload | Description |
|---|---|
| onGetServerInstanceInfo(Int32,ServerInstanceInfo[]) | Generic server callback method. Supported only by the Professional Edition generic server V5.1 or newer. Get information about all server instances (UA sessions) or the requested server instance only. This information may be used to identify the client application, especially when the client application defines a name using the SetClientName OPC method. Be aware the the client name cannot yet be defined during the instance creation (ServerInstancesChange call for creation). The client application has to call SetClientName() to define the name. The client handle is passed as an argument to the plugin methods ValidateItems and WriteItems to enable the server to allow/deny the access based on the instance information. |
| onGetServerInstanceInfo(Int32,Int32,IntPtr) | Generic server callback method. Supported only by the Professional Edition generic server V5.1 or newer. Get information about all server instances (UA sessions) or the requested server instance only. This information may be used to identify the client application, especially when the client application defines a name using the SetClientName OPC method. Be aware the the client name cannot yet be defined during the instance creation (ServerInstancesChange call for creation). The client application has to call SetClientName() to define the name. The client handle is passed as an argument to the plugin methods ValidateItems and WriteItems to enable the server to allow/deny the access based on the instance information. |
Requirements
Target Platforms: Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows 7, Windows Server 2008 family