Gets the toplevel window that’s an ancestor of window.
Any window type but GDK_WINDOW_CHILD is considered a
toplevel window, as is a GDK_WINDOW_CHILD window that
has a root window as parent.
Note that you should use Window.getEffectiveToplevel when
you want to get to a window’s toplevel as seen on screen, because
Window.getToplevel will most likely not do what you expect
if there are offscreen windows in the hierarchy.
Gets the toplevel window that’s an ancestor of window.
Any window type but GDK_WINDOW_CHILD is considered a toplevel window, as is a GDK_WINDOW_CHILD window that has a root window as parent.
Note that you should use Window.getEffectiveToplevel when you want to get to a window’s toplevel as seen on screen, because Window.getToplevel will most likely not do what you expect if there are offscreen windows in the hierarchy.