| Overload | Description |
|---|---|
| ObtainItemVtq(DAItemMapping) | Obtains OpcLabs.EasyOpc.DataAccess.DAVtq for an item source, given an item mapping of a VTQ member. |
| ObtainItemVtq(DAItemMapping,DAItemMapping,DAItemMapping,DAItemMapping) | Obtains OpcLabs.EasyOpc.DataAccess.DAVtq for an item source, given item mappings for a value, timestamp and quality members. |