/products/devtools/ni-labview/b/blog/posts/labview-use-an-event-channel-to-send-button-clicks-to-a-subflowIn LabVIEW, you often use while loops with a stop button. The process will keep running and looping until you press the button. It then triggers the exit condition and the loop stops.Here is an example from my Digilent DAQ driver: The button is insien-USTelligent Community 12https://community.element14.com/products/devtools/ni-labview/b/blog/posts/labview-use-an-event-channel-to-send-button-clicks-to-a-subflowSun, 02 Apr 2023 12:13:11 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:e49fa148-30e9-4db3-8d0c-f2c223d490f2Jan Cumps0<p>A little optimisation:</p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-e49fa148-30e9-4db3-8d0c-f2c223d490f2/pastedimage1680437526659v1.png" alt=" " /></p> <p>The original flow pushes the state into the flow every time. The revised one only sends true.</p><img src="https://community.element14.com/aggbug?PostID=25586&AppID=398&AppType=Weblog&ContentType=0" width="1" height="1">