[Octave-bug-tracker] [bug #48186] delete(allchild(fig)) in a "deletefcn" callback raises error

[Rik]

Update of bug #48186 (project octave):

                Severity:             5 - Blocker => 4 - Important          

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Follow-up Comment #15:

This isn't desirable, but I don't think it is a Blocker for the 6.1 release. 
This is not a common code pattern.  Still, we should see if we could quickly
fix this.

More important than a bogus error message, is the fact that this can result in
Octave hanging in such a state that only a kill signal from outside the
program can stop it.

Placing this code in tst_delete_cb.m and running several times results in a
hang.


F = figure('Units','normalized');
h2 = uipanel(F,'Position',[0.55 0 0.45 1]);
h1 = uipanel(F,'Position',[0 0 0.45 1],
'DeleteFcn','delete(allchild(gcbf))');
close (F);




(file #48487)
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Additional Item Attachment:

File name: tst_delete_cb.m                Size:0 KB
    <https://savannah.gnu.org/file/tst_delete_cb.m?file_id=48487>



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