Hello,
There are many overlays on my image display control, and when the image is quickly updated, the overlay will flickering. I changed the image to snapshot mode as provided in the link below, the flickering problem is solved.
https://forums.ni.com/t5/LabVIEW/Vision-Overlay-Flickering/td-p/3225167
https://digital.ni.com/public.nsf/allkb/B60C632A404EC27C86257EEE0006B23D
However, in snapshot mode, the Get Last Evnet method encountered an exception. When I click on the image control, there will be no Click Event generated. The attached vi can see the problem.
ps. I'm using LabVIEW 2020
Thanks
Henry