Window.getToplevel

Gets the toplevel window that’s an ancestor of window.

Any window type but [gdk.types.WindowType.Child] is considered a toplevel window, as is a [gdk.types.WindowType.Child] window that has a root window as parent.

Note that you should use [gdk.window.Window.getEffectiveToplevel] when you want to get to a window’s toplevel as seen on screen, because [gdk.window.Window.getToplevel] will most likely not do what you expect if there are offscreen windows in the hierarchy.