Public Shared Function SetItemValue( _
   ByVal AppItemHandle As Integer, _
   ByVal newValue As Object, _
   ByVal quality As Short, _
   ByVal timestamp As Date _
) As Integer

public static int SetItemValue( 
   int AppItemHandle,
   object newValue,
   short quality,
   DateTime timestamp
)

Parameters

AppItemHandle

Item handle as defined in the AddItem method call.

newValue

Object with new item value. The value must match the canonical data type of this item. The canonical date type is the type of the value in the cache and is defined in the AddItem method call.
null can be passed to change only the quality and timestamp.

quality

New quality of the item value. This is a short value ( Int16) with a value of the OPCQuality enumerator.

timestamp

Timestamp of the new item value.

Return Value

Reference