Syntax
| Visual Basic (Declaration) | |
|---|---|
Public Function Read( _ ByVal src As OPCDATASOURCE, _ ByRef val As OPCItemState _ ) As Integer | |
| C# | |
|---|---|
public int Read( OPCDATASOURCE src, out OPCItemState val ) | |
Parameters
- src
- CACHE or DEVICE
- val
- Read value,quality,timestamp and error status