'Declaration
<ExtensionAttribute()> <NotNullAttribute()> Public Overloads Shared Function ReadItemValueArrayOfBoolean( _ ByVal client As IEasyDAClient, _ ByVal machineName As String, _ ByVal serverClass As String, _ ByVal itemId As String, _ ByVal valueAge As Integer _ ) As Boolean()
'Usage
Dim client As IEasyDAClient Dim machineName As String Dim serverClass As String Dim itemId As String Dim valueAge As Integer Dim value() As Boolean value = IEasyDAClientExtension2.ReadItemValueArrayOfBoolean(client, machineName, serverClass, itemId, valueAge)
[Extension()] [NotNull()] public static bool[] ReadItemValueArrayOfBoolean( IEasyDAClient client, string machineName, string serverClass, string itemId, int valueAge )
[Extension()] [NotNull()] public: static array<bool>^ ReadItemValueArrayOfBoolean( IEasyDAClient^ client, String^ machineName, String^ serverClass, String^ itemId, int valueAge )
Parameters
- client
- The client object that will perform the operation.
This is typically the OpcLabs.EasyOpc.DataAccess.EasyDAClient object.
The value of this parameter cannot be
null
(Nothing
in Visual Basic). - 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.
The value of this parameter cannot be
null
(Nothing
in Visual Basic). - serverClass
- Contains ProgID of the OPC server to read from.
The value of this parameter cannot be
null
(Nothing
in Visual Basic). - itemId
- Contains OPC item identifier.
The value of this parameter cannot be
null
(Nothing
in Visual Basic). - valueAge
- Determines the age of value you would like to obtain (in milliseconds).
Return Value
This method never returns null
(Nothing
in Visual Basic).