Why do you have a while loop in your program?
Once the image is loaded, the while loop starts. Nothing ever changes from inside the while loop. And the while loop is running at full speed since you have no wait function in there. So you are pegging your processor doing things over and over and over with the only possibility that you hit the stop button to end the program.
When I ran your program, I saw graphic anomalies because the CPU didn't have enough time to redraw the screen properly when I moved the scroll bar. And when I hit the stop button, LabVIEW completely crashed without warning back to the desktop.
(Actually, LabVIEW crashed even after I removed the while loop.)
Message Edited by Ravens Fan on 03-10-2010 10:17 PM
On later review, I do see a control inside your loop. It was difficult to find because you hid the labels on your controls. Always show labels on the terminals for controls and indicators in your block diagram!
So with a control, you should use an event structure so it only does the calculations when the control changes. And there is no need to have the picture graph inside the loop because it never changes.
I still don't know why your VI crashes my LabVIEW. I suspect you've got a problem inside that picture control.
Message Edited by Ravens Fan on 03-10-2010 10:20 PM
