Sets whether the GtkRange respects text direction.
If a range is flippable, it will switch its direction if it is horizontal and its direction is %GTK_TEXT_DIR_RTL.
See [method@Gtk.Widget.get_direction].
%TRUE to make the range flippable
See Implementation
Sets whether the GtkRange respects text direction.
If a range is flippable, it will switch its direction if it is horizontal and its direction is %GTK_TEXT_DIR_RTL.
See [method@Gtk.Widget.get_direction].