'Declaration
<ExtensionAttribute()> Public Overloads Shared Function GetPropertyValueInt64( _ ByVal client As IEasyDAClient, _ ByVal machineName As String, _ ByVal serverClass As String, _ ByVal itemId As String, _ ByVal propertyDescriptor As DAPropertyDescriptor _ ) As Long
'Usage
Dim client As IEasyDAClient Dim machineName As String Dim serverClass As String Dim itemId As String Dim propertyDescriptor As DAPropertyDescriptor Dim value As Long value = IEasyDAClientExtension2.GetPropertyValueInt64(client, machineName, serverClass, itemId, propertyDescriptor)
[Extension()] public static long GetPropertyValueInt64( IEasyDAClient client, string machineName, string serverClass, string itemId, DAPropertyDescriptor propertyDescriptor )
[Extension()] public: static int64 GetPropertyValueInt64( IEasyDAClient^ client, String^ machineName, String^ serverClass, String^ itemId, DAPropertyDescriptor^ propertyDescriptor )
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
- The Item ID of the OPC item involved in the operation.
- propertyDescriptor
- The property descriptor of the OPC property being obtained.
Return Value
If successful, the function returns the actual value of the OPC property requested, converted to a type indicated by the method name.