How can a background thread hang the UI thread?

Question

I am using a background thread to initialize an instrument over USB. The UI hangs when I try to open the device. I would expect the background thread to pause when calling O

Answer 1

I would suggest you wrap the call to meter.open() in a separate method, and call that method from within the updateMeter() method using Invoke() or BeginInvoke() construct on the form or parent control. Doing this will marshal the action back on to the UI thread and should execute gracefully. I hope this helps.