Programmation GTK/La hiérarchie des widgets

Voici l'arbre de la hiérarchie de classes utilisées pour implanter les widgets.

   GtkObject
   +-- GtkData
   |   \-- GtkAdjustment
   |
   \-- GtkWidget
       +-- GtkContainer
       |   +-- GtkBin
       |   |   +-- GtkAlignment
       |   |   +-- GtkFrame
       |   |   |   *-- GtkAspectFrame
       |   |   |
       |   |   +-- GtkItem
       |   |   |   +-- GtkListItem
       |   |   |   +-- GtkMenuItem
       |   |   |   |   +-- GtkCheckMenuItem
       |   |   |   |       *-- GtkRadioMenuItem
       |   |   |   |
       |   |   |   *-- GtkTreeItem
       |   |   |
       |   |   +-- GtkViewport
       |   |   \-- GtkWindow
       |   |       +-- GtkDialog
       |   |       \-- GtkFileSelection
       |   |
       |   +-- GtkBox
       |   |   +-- GtkHBox
       |   |   \-- GtkVBox
       |   |       +-- GtkColorSelection
       |   |       \-- GtkCurve
       |   |
       |   +-- GtkButton
       |   |   +-- GtkOptionMenu
       |   |   \-- GtkToggleButton
       |   |       \-- GtkCheckButton
       |   |           \-- GtkRadioButton
       |   |
       |   +-- GtkList
       |   +-- GtkMenuShell
       |   |   +-- GtkMenu
       |   |   \-- GtkMenuBar
       |   |
       |   +-- GtkNotebook
       |   +-- GtkScrolledWindow
       |   +-- GtkTable
       |   \-- GtkTree
       |
       +-- GtkDrawingArea
       +-- GtkEntry
       +-- GtkMisc
       |   +-- GtkArrow
       |   +-- GtkImage
       |   +-- GtkLabel
       |   \-- GtkPixmap
       |
       +-- GtkPreview
       +-- GtkProgressBar
       +-- GtkRange
       |   +-- GtkScale
       |   |   +-- GtkHScale
       |   |   \-- GtkVScale
       |   |
       |   \-- GtkScrollbar
       |       +-- GtkHScrollbar
       |       \-- GtkVScrollbar
       |
       +-- GtkRuler
       |   +-- GtkHRuler
       |   \-- GtkVRuler
       |
       \-- GtkSeparator
           +-- GtkHSeparator
           \-- GtkVSeparator