Window
constructor()
Creates a new GtkWindow.
To get an undecorated window (no window borders), use method@Gtk.Window.set_decorated.
All top-level windows created by gtk_window_new() are stored in an internal top-level window list. This list can be obtained from func@Gtk.Window.list_toplevels. Due to GTK keeping a reference to the window internally, gtk_window_new() does not return a reference to the caller.
To delete a GtkWindow, call method@Gtk.Window.destroy.
Return
a new GtkWindow.
constructor(pointer: <Error class: unknown class><<Error class: unknown class>>)