'Declaration
<NotNullAttribute()> Function WaitForMultipleItemValues( _ ByVal itemGroupArgumentsArray As Object, _ ByVal minimumQuality As Object, _ ByVal millisecondsTimeout As Integer _ ) As Object()
'Usage
Dim instance As _EasyDAClient Dim itemGroupArgumentsArray As Object Dim minimumQuality As Object Dim millisecondsTimeout As Integer Dim value() As Object value = instance.WaitForMultipleItemValues(itemGroupArgumentsArray, minimumQuality, millisecondsTimeout)
[NotNull()] object[] WaitForMultipleItemValues( object itemGroupArgumentsArray, object minimumQuality, int millisecondsTimeout )
[NotNull()] array<Object^>^ WaitForMultipleItemValues( Object^ itemGroupArgumentsArray, Object^ minimumQuality, int millisecondsTimeout )
Parameters
- itemGroupArgumentsArray
The value of this parameter cannot be
null
(Nothing
in Visual Basic).- minimumQuality
- The minimum quality of OPC-DA data to accept.
Because the OpcLabs.EasyOpc.DataAccess.DAQuality has an implicit conversion from System.Int32 and OpcLabs.EasyOpc.DataAccess.DAQualities, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use an integer (representing the internal value of the quality), or an element of the OpcLabs.EasyOpc.DataAccess.DAQualities enumeration in place of this parameter, and the corresponding OPC DA quality object will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.DataAccess.DAQuality.DAQuality Constructor(Int32) or OpcLabs.EasyOpc.DataAccess.DAQuality.DAQuality Constructor(DAQualities) constructor instead.
The value of this parameter cannot be
null
(Nothing
in Visual Basic). - millisecondsTimeout
- The number of milliseconds to wait, or System.Threading.Timeout.Infinite to wait indefinitely.
Valid values of this parameter are in the range from
-1
to2147483647 (Int32.MaxValue)
.
Return Value
This method never returns null
(Nothing
in Visual Basic).
The individual elements of the returned value are never null
(Nothing
in Visual Basic).