Question

Where am I supposed to reimplement QApplication::notify function? What I mean is, which class? One of my own classes or subclass some of Qt’s class and do it there? I need this because I’m getting the following error while downloading file from a server(small files are downloaded ok, but large ones cause this msg):

Qt has caught an exception thrown from an event handler. Throwing
exceptions from an event handler is not supported in Qt. You must
reimplement QApplication::notify() and catch all exceptions there.

Answer 1

Just subclass QApplication and in your notify(..) method do something like this:

try {
    return QApplication::notify( receiver, event );
} catch ( std::exception& e ) {
    showAngryDialog( e );
    return false;
}

Then use it in your main function instead of QApplication.