close() and deleteLater()

Hi,

I have created an application which has several UI forms. When the user clicks on the shutdown button, the ui form for shutdown appears where i call a function to save the last state of the application to a database. On completion I emit a signal. This signal is connected to a slot where I have written this->close();

When I run my application I see using qDebug() << messages that the slot where this->close(); is written is executed but it does not close the UI application.

I wrote this->deleteLater(); instead and it successfully closed the application.

Is this a correct way to do it? Any help is appreciated.

Giselle

Is any of the other windows still open when you call close()?

In any case there is nothing wrong with deleting the window at program end.

Cheers,
_

Hi,

Thank you for your reply.

There is no other window open. If I add a pushbutton and implement this->close(); in the onclicked slot of pushbutton the window closes.

But if I were to simply call a function and that saves the application last state and at the end emits a signal stating all states saved and if i connect this signal to a slot which implements this->close(); it does not close. Only this->deleteLater(); works in this case. Anycase if deleting the window at the end of the program is Ok then I will use this->deleteLater();


Thank you