[Interest] QWidget or QDialog as a singleton

[Christopher Probst]

Hello Everybody,

Along the same lines of a question I have asked in the past, as a rule of
thumb I never have a singleton hold  a QWidget/QDialog from the instance of
a singleton. However I am not sure why I follow this basic principle. Does
anybody object to having the instance of a singleton be a QWidget or a
QDialog and why? I thank you in advance.

Thanks,
Christopher
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