- GtkAdjustment
- GtkArrow — Displays an arrow
- GtkCalendar
- GtkDrawingArea
- GtkEventBox
- GtkHandleBox
- GtkIMContextSimple
- GtkIMMulticontext
- GtkSizeGroup
- GtkTooltip
- GtkViewport — An adapter which makes widgets scrollable
- GtkAccessible — Accessibility support for widgets