[Interest] findChildren() in destroyed() signal slot

Thiago Macieira thiago.macieira at intel.com
Mon Mar 19 16:52:51 CET 2012

On segunda-feira, 19 de março de 2012 11.34.02, Jason Cipriani wrote:
> I am new to Qt. I have two QObject-derived classes, Parent and Child.
> Child's parent is a Parent. When I attach a slot in Parent to Child's
> destroyed() signal, I see that Parent's findChildren() does not include the
> Child that was destroyed. This is what I want. Calling findChildren() in a
> destroyed() handler, and assuming the child won't be in the list, is safe,
> right?

Don't assume that.

The order in which the signal and the child deletion is run could change in a 
different version.

Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
     Intel Sweden AB - Registration Number: 556189-6027
     Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
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