Game Programming using Qt 5 Beginner's Guide - Second Edition

Have a go hero – Extending the basic file downloader

Of course, having to alter the source code in order to download another file is far from an ideal approach, so try to extend the dialog by adding a line edit in which you can specify the URL you want to download. Also, you can offer a file dialog to choose the location where the downloaded file will be saved. The simplest way of doing that is to use the QFileDialog::getSaveFileName() static function.