Re: Catching Figure close button - callbacks not running?

[pavel]

> I *think* the callbacks are run when the event occurs.  That is consistent with 
> my experience anyway. It's just that the figure window is not updated until 
> drawnow() is run.

That would be great news since multithreading would be provided. 
Unfortunately until I call drawnow(), the callback does not run in my 
case (it creates some files so easy to check). I have a bit hard time 
understanding the documentation in detail


========
By default callback functions are queued (they are executed one after 
the other in the event queue) unless the drawnow, figure, waitfor, 
getframe, or pause functions are used. If an executing callback invokes 
one of those functions, it causes Octave to flush the event queue, which 
results in the executing callback being interrupted.
========

It does not say whether the queue waits for execution or is executed 
right away in a separate thread. But what I see it seems to run in the 
main thread - my loop waits until drawnow finishes with the callback.


> It looks as if the onCleanup() function ('help onCleanup') may allow you to 
> hook Ctrl+C.  Not sure though, I haven't tried it myself.

Thanks for the hint. Just Ctrl+C stops the execution right away, no room 
to clear some specific variable to invoke the cleanup. Or maybe I just 
do not undertstand the use properly.

Thanks a lot!

Pavel.