graceful abort -- emulate "close panel ?"

[GabbyG]

Hi

I need a way to close a VI, that was started from a VI server "runVI" in a way, that the running vi can catch the request to stop.

Background is a set of plugin vis that get alternatly opened in a sub panel.

Whenever I a open another one I want the previous one to stop running.

Yes, I have the reference, so I could run the method Abort, or I could ask the user to click a button for self termination, or I could send a notification or may be something else.

What I really would like to do is generate a "close panel ?"-event, discard the close , do some housekeeping and then stop running.

Any good idea ? (LV2013)

Gabi

[jcarmody]

I'm a little hesitant to suggest User Events to a CLA, but...

[jcarmody · Accepted solution]

Main VI creates the user event and launches the target:

The target VI waits for, then handles the event:

[GabbyG]

Thanks, Jim for your reply and elaboration.

Sure, this is a way to do it.

I'll have very many different VIs to start and I was looking for way to incorporate into my Sub-Panel-Class a "close"-method, that would work without too much knowledge about the loaded vi.

But it seems there is no easy way.

Since I'll need a way get data in and out anyway, I'll probably set up a queue scheme (QMH or similar) that could handle an EXIT.

Thanks again

Gabi

[jcarmody]

---

@GabiTillmann wrote:

[...] without too much knowledge about the loaded vi. [...]

---

I believe that the Actor Framework was designed to do this.  I get the impression that the main VI would send a generic Shutdown message to its child actor(s) without caring how it is handled.