Qt Reference Documentation

# Main Window and Related Classes

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