Widget.setStateFlags

This function is for use in widget implementations. Turns on flag values in the current widget state (insensitive, prelighted, etc.).

This function accepts the values [gtk.types.StateFlags.DirLtr] and [gtk.types.StateFlags.DirRtl] but ignores them. If you want to set the widget's direction, use [gtk.widget.Widget.setDirection].

It is worth mentioning that any other state than [gtk.types.StateFlags.Insensitive], will be propagated down to all non-internal children if widget is a #GtkContainer, while [gtk.types.StateFlags.Insensitive] itself will be propagated down to all #GtkContainer children by different means than turning on the state flag down the hierarchy, both [gtk.widget.Widget.getStateFlags] and [gtk.widget.Widget.isSensitive] will make use of these.