Question

Do I understand everything right – if I am creating some Qt object via new and this object has constructor with parent parameter then if I’m passing value to this param I don’t need to call delete on this object, it will be called automatically be parent object? And this is true for every Qt class that has parent param in constructor?

Answer 1

Yes:

When you create a QObject with another object as parent, it’s added to the parent’s children() list, and is deleted when the parent is.