(gobject:define-genum "GdkWindowType" window-type
  (:export t
   :type-initializer "gdk_window_type_get_type")
  (:root 0)
  (:toplevel 1)
  (:child 2)
  (:temp 3)
  (:foreign 4)
  (:offscreen 5)
  (:subsurface 6))  

:root

Root window, this window has no parent, covers the entire screen, and is created by the window system.

:toplevel

Toplevel window, used to implement the gtk:window class.

:child

Child window, used to implement e.g. the gtk:entry class.

:temp

Override redirect temporary window, used to implement the gtk:menu class.

:foreign

Foreign window.

:offscreen

Offscreen window, see the section called "Offscreen Windows".

:subsurface

Subsurface-based window. This window is visually tied to a toplevel, and is moved/stacked with it. Currently this window type is only implemented in Wayland.