使用QMessageBox释放QPushButtons的内存

Question

I've instantiated a QMessageBox and added a couple of buttons to it like so:

QMessageBox message;
cancelButton = message.addButton(tr("Cancel"), QMessageBox::RejectRole);
okButton = message.addButton(tr("OK"), QMessageBox::ActionRole);

Is it necessary to call the destructors for each pushbutton before exiting, or does the QMessageBox destructor take care of everything?

Answer 1

No.

When parent objects are deleted they delete their children. So the buttons will be deleted when 'message' is.