For further information, please refer to the following:
- Qt's QMainWindow documentation can be found at https://github.com/pyqt/examples/tree/master/mainwindows.
- Apple's Human Interface Guidelines for macOS include guidance on how to structure the application menus. These can be found at .
- PyQt offers some examples of dialog box usage at https://github.com/pyqt/examples/tree/master/dialogs.
- QMainWindow can also be used to create Multiple Document Interfaces (MDIs). For more information on how to build an MDI application, see https://www.pythonstudio...