Dragging dialog box VIs by their title bars suspends my main loop.

[bmihura]

My LabVIEW application consists of two While Loops.

One loop displays various dialog box VIs, while the main loop acquires data and does everything else.

When I drag a dialog box VI by its title bar, the main loop is suspended.

How can I avoid this, other than hiding the dialog box VIs' title bars thus not allowing the drag?

[altenbach]

This does not happen in my experience. Can you attach a simple example?

Do you have mutithreading enabled? What is the execution system of the main and the dialog VI? What is your LabVIEW version? What is your OS?

[bmihura]

Oh good, you're looking at this <b>altenbach</b>.

Please see attached .llb.

Also, I'm open to suggestions on a better architecture for popping up dialogs while a "main loop" is running, while sharing data between the two.

[bmihura]

Also, I have not enabled multithreading explicity (how do you do that)?

Both execution systems are default.

LabVIEW version is 7.1.

OS is Win2k, ultimately WinXP.

[chilly_charly]

No problem with moving dialog box on my PC... (W2K also)

[altenbach]

Multithreading is enabled by default. It is under "tools..options..performance and disk...run with multiple threads.

As I mentioned, I don't see the problem, the counter continues to run. I have modified it so it charts the actual loop time of the main loop. Yes, when the dialog window is rapidly moved around, there is a little bit of jitter (maybe  5-10 ms) in the loop rate.

The loop rate is mich more precise if you use a timed loop instead. All you need in the upper loop is a simple event structure, you can eliminate all the global variables, etc.

I have modified your VI with a timed loop and an event structure. See if it works better. If you still have problems, maybe there is a problem with your computer, e.g. the graphics driver etc.

[bmihura]

I tried your code, I still have that delay problem.

Maybe it's some strange problem with my computer.

I'll try it on a different computer, WinXP, tomorrow.

[Poormanphysics]

Hello I am on a dire need for a veteran's wisdom on solving my two P-controllers unto two separate servo drivers that I drive between +/-10V much has been said about these new M-series boards but it does not hack it? Here is code.

Berns

[bmihura]

Dr. Berns,

You seem to have posted into the middle of this unrelated thread; your post didn't show up on the main board.

Try your posting process over again from scratch, making sure you copy and paste your text from here so you don't have to type it again.

[Philip_Courtois]

Hi Dr. Berns,

As bmihura said you should post your question to a new thread instead. Since your question is specific to data acquisition, you should post your new thread in the Multifunction DAQ Forum to get the best chance of a good response.

Good luck!