These widgets are meant for direct use. There are also some abstract widget classes, meant for subclassing, and some more complex widgets. ... QButtonGroup (Organizes QButton widgets in a group) . QCheckBox (Check box with a text label) . QComboBox (Combined button and popup list) . QFrame (The base class of widgets that have an (optional) frame) . ... QMenuBar (Horizontal menu bar) . ... QSpinBox (Spin box widget, sometimes called up-down widget, little arrows widget or spin button) . ...