How to close a local QDialog?

My application shows an icon in system tray which allows user to quit the application. Sometimes, my app will popup a dialog to let user verify.

Code:

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void MyWidget::showWarning()
{
    QDialog dialog;
    ...
    ...
    int result = dialog.exec();
    if(result == QDialog::Accepted)
    {
       ...
    }
}

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The problem is, if the local QDialog object is executing when user quits the app.MyWidget will be deleted before the line

Code:

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if(result == QDialog::Accepted)

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is called, which makes the app crash.

So, how do I safely finish the QDialog when the user quits the app?

Which version are you using ? I somewhat remember this was a bug in Qt..
anyway you can try catching QCoreApplication::aboutToQuit and closing the dialog yourself :-)

Quote:

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Originally Posted by aamer4yu

Which version are you using ? I somewhat remember this was a bug in Qt..
anyway you can try catching QCoreApplication::aboutToQuit and closing the dialog yourself :-)

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I'm using 4.6. Well, I will try that. Thanks~