GTK+ 3 Reference Manual | ||||
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Top | Description | Object Hierarchy | Implemented Interfaces |
GObject +----GInitiallyUnowned +----GtkWidget +----GtkContainer +----GtkBin +----GtkWindow +----GtkAlignment +----GtkComboBox +----GtkFrame +----GtkButton +----GtkMenuItem +----GtkEventBox +----GtkExpander +----GtkHandleBox +----GtkToolItem +----GtkScrolledWindow +----GtkViewport
The GtkBin widget is a container with just one child. It is not very useful itself, but it is useful for deriving subclasses, since it provides common code needed for handling a single child widget.
Many GTK+ widgets are subclasses of GtkBin, including GtkWindow, GtkButton, GtkFrame, GtkHandleBox or GtkScrolledWindow.