How do I update a string in the Operator Interface with a value from TestStand?
The key element is UIMessages.
The Operator Interface will handle the UIMessage Event created by a step in TestStand via the PostUIMessageEx activeX.
Below is a visual that will help with the interaction between Operator Interface (which
will start the TestStand API engine(ex Simple OI)) and TestStand sequence.
LabVIEW(r) and TestStand(r) mentioned above are National Instruments products.