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