'Declaration
<ExtensionAttribute()> <CanBeNullAttribute()> Public Overloads Shared Function GetValuePropertyValue( _ ByVal client As IEasyDAClient, _ ByVal machineName As String, _ ByVal serverClass As String, _ ByVal itemId As String _ ) As Object
'Usage
Dim client As IEasyDAClient Dim machineName As String Dim serverClass As String Dim itemId As String Dim value As Object value = IEasyDAClientExtension2.GetValuePropertyValue(client, machineName, serverClass, itemId)
[Extension()] [CanBeNull()] public static object GetValuePropertyValue( IEasyDAClient client, string machineName, string serverClass, string itemId )
[Extension()] [CanBeNull()] public: static Object^ GetValuePropertyValue( IEasyDAClient^ client, String^ machineName, String^ serverClass, String^ itemId )
Parameters
- client
- The client object that will perform the operation.
- 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 to read from.
- itemId
- Contains OPC item identifier.
Return Value
Returns a value of this OPC property for a specified OPC item, converted to a proper type.