GtkAdjustment — A representation of an adjustable bounded value
GtkIMContextSimple — An input method context supporting table-based input methods
GtkIMMulticontext — An input method context supporting multiple, loadable input methods
GtkSizeGroup — Grouping widgets so they request the same size
GtkSnapshot — Auxiliary object for snapshots
GtkTooltip — Add tips to your widgets
GtkWidgetPaintable — Drawing a widget elsewhere
GtkWindowControls — A widget displaying window buttons
GtkWindowHandle — A titlebar area widget