The following widgets do not have an associated window. If you want to capture events, you'll have to use the EventBox. See the section on the EventBox widget.

  GTK.GtkAlignment
  GTK.GtkArrow
  GTK.GtkBin
  GTK.GtkBox
  GTK.GtkButton
  GTK.GtkCheckButton
  GTK.GtkFixed
  GTK.GtkImage
  GTK.GtkLabel
  GTK.GtkMenuItem
  GTK.GtkNotebook
  GTK.GtkPaned
  GTK.GtkRadioButton
  GTK.GtkRange
  GTK.GtkScrolledWindow
  GTK.GtkSeparator
  GTK.GtkTable
  GTK.GtkToolbar
  GTK.GtkAspectFrame
  GTK.GtkFrame
  GTK.GtkVBox
  GTK.GtkHBox
  GTK.GtkVSeparator
  GTK.GtkHSeparator

We'll further our exploration of GTK by examining each widget in turn, creating a few simple example programs to display them.