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GtkAdjustment — A representation of an adjustable bounded value
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GtkCalendar — Displays a calendar and allows the user to select a date
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GtkDrawingArea — A widget for custom user interface elements
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GtkGLArea — A widget for custom drawing with OpenGL
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GtkEventBox — A widget used to catch events for widgets which
do not have their own window
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GtkHandleBox — a widget for detachable window portions
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GtkIMContextSimple — An input method context supporting table-based input methods
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GtkIMMulticontext — An input method context supporting multiple, loadable input methods
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GtkSizeGroup — Grouping widgets so they request the same size
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GtkTooltip — Add tips to your widgets
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GtkViewport — An adapter which makes widgets scrollable
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GtkAccessible — Accessibility support for widgets