For backwards compatibility reasons this method will never return
gtk.types.Align.Baseline, but instead it will convert it to
gtk.types.Align.Fill. If your widget want to support baseline aligned
children it must use gtk.widget.Widget.getValignWithBaseline, or
g_object_get (widget, "valign", &value, NULL), which will
also report the true value.
Gets the value of the #GtkWidget:valign property.
For backwards compatibility reasons this method will never return gtk.types.Align.Baseline, but instead it will convert it to gtk.types.Align.Fill. If your widget want to support baseline aligned children it must use gtk.widget.Widget.getValignWithBaseline, or g_object_get (widget, "valign", &value, NULL), which will also report the true value.