Introduction to events

Events were introduced in LabVIEW™ 6.i. Before events, user interaction handling was largely dependent on polling controls inside a while loop, leading to inefficient and CPU-intensive designs. Event-driven programming enables your VI to react only when something important happens, such as a button click or value change, resulting in cleaner, more responsive UIs.

Events are handled with the Event Structure.

02 event structure in the palette
Figure 1. The Event Structure in the function palette