| Abstract user interface action that can be inserted into widgets | |
| Groups actions together | |
| Widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop | |
| Main application window | |
| Area in which MDI windows are displayed | |
| Subwindow class for QMdiArea | |
| Menu widget for use in menu bars, context menus, and other popup menus | |
| Horizontal menu bar | |
| Resize handle for resizing top-level windows | |
| Horizontal bar suitable for presenting status information | |
| Movable panel that contains a set of controls | |
| Extends QAction by an interface for inserting custom widgets into action based containers, such as toolbars |