do while loops lock up when a pull-down menu or list is open.

[zener]

HI,
I have an application in CVI that runs some do/while loops in a callback function. These control outputs on an analog output board. Anytimne I open a drop-down list or a menu item, these do/while loops seem to stop until I make a selection or close the menu. Therefore, the analog output cannot change until the do-while loop continues. The remainder of the application seems to function fine while these are open. Help!

[Al_S]

If you're running everything in one thread, one callback can pause another callback. If you need your loops to run without interruption, you may need to put them in another thread. Multi-threading can be intimidating at first. Look at MultithreadingOverview.PDF which came with CVI. The multi-threading sample programs should also help.

[zener]

Thanks! I called yesterday and the technician explained this to me. I did encapsulate my callback function in a seperate thread and it works fine now. You are correct in saying that Multithreading can be intimidating at first, but I'm starting to catch on.
Thanks again,