A popup from a combo box.
Used for creating the desktop background window.
Dialog window.
A window that is used to implement a DND cursor.
Used for creating dock or panel windows.
A menu that belongs to a menubar.
Window used to implement a menu; GTK+ uses this hint only for torn-off menus, see #GtkTearoffMenuItem.
Normal toplevel window.
A notification - typically a “bubble” that belongs to a status icon.
A menu that does not belong to a menubar, e.g. a context menu.
Window used to display a splash screen during application startup.
Window used to implement toolbars.
A tooltip.
Utility windows which are not detached toolbars or dialogs.
These are hints for the window manager that indicate what type of function the window has. The window manager can use this when determining decoration and behaviour of the window. The hint must be set before mapping the window.
See the Extended Window Manager Hints specification for more details about window types.