The widget observer APIs belong into the widget docs, not the window
docs. Oops.
gtk_widget_class_bind_template_callback_full
gtk_widget_class_set_connect_func
+<SUBSECTION>
+gtk_widget_observe_children
+gtk_widget_observe_controllers
+
<SUBSECTION Standard>
GTK_WIDGET
GTK_IS_WIDGET
gtk_window_get_titlebar
gtk_window_set_interactive_debugging
-<SUBSECTION>
-gtk_widget_observe_children
-gtk_widget_observe_controllers
-
<SUBSECTION Standard>
GTK_WINDOW
GTK_IS_WINDOW