In VISA, you use VISA Enable Event to configure VISA with what type of event to watch for (such as interrupts). Then use VISA Wait on Event to actually wait for the interrupt to be generated and then acknowledged. Finally, you use VISA Disable Event before ending the VISA session.
You will find tabs that correspond with these names in VISA Interactive Control. First use the Enable Event, select the event type and whether you want a queue or handler mechanism (I would suggest queue), and press Execute. Then go to the Wait on Event tab, set your timeout, and press Execute. As long as the interrupt occurs before the timeout period has elapsed, you will see the interrupt information returned. You can Execute Wait on Event numerous time
s and it will return the next interrupt in queue. Before closing the VISA window, Execute Disable Event.