Looks like the SIGNAL loadFinished(bool) is not emitted anymore with Qt 6.8.1

hskoglund

Hi, the reason the behavior differs between Qt 6.7.2 and Qt 6.8.1 is probably because you're creating the QWebEngineView with your QDialog derived TimetablePrintForm, i.e. not a QWdiget.

Easiest solution is just to omit any parent, like this:

,,,
viewPreview2 = new QWebEngineView(); //notVisible. But must stay alive for printing.
viewPreview2->hide();
...

It was probably just good luck that allowed a QDialog flavoed parent to work anyway in 6.7.2 but in 6.8.1 you run out of it :-)

Volker75

I fear I don't understand it 100%, but it is working now!
Thank you so much!
You have earned my announce reward. Please tell me your PayPal (email) or IBAN here or write me a private message and I will sent you the money..
Can you also tell if I need to care about deleting it now myself?
So do I need to write somewhere "delete viewPreview2" myself now or does the garbage collector already cares about it?

hskoglund

Re. the delete: easiest is to do that in TimetablePrintForm's destructor:

...
TimetablePrintForm::~TimetablePrintForm(){
    delete viewPreview2;
}
...

(in C++ you have to take out the garbage yourself, no GC available)

Volker75

Thank you! I guess the other bug that I wrote some time ago and wrote a link here is because of the same bug. I well mark the other topic from me as solved as soon as I am able the check that also. Thank you!

Volker75

Last question:
I saw in the documentation, that QWebEngineView() has also a close().
Should I close() before delete? (Or only close() and not delete, but I guess that is wrong)

hskoglund

Since your QWebEngineView is hidden anyway (which is essentially what close() does), I don't think a close() is needed, i.e. the delete will suffice.

Volker75

Thank you!