Sets the translation domain and uses g_dgettext() for translating the label and tooltip of GtkActionEntrys added by Action.groupAddActions.
If you’re not using gettext() for localization, see Action.groupSetTranslateFunc.
the translation domain to use for g_dgettext() calls, or NULL to use the domain set with textdomain()
2.4
Sets the translation domain and uses g_dgettext() for translating the label and tooltip of GtkActionEntrys added by Action.groupAddActions.
If you’re not using gettext() for localization, see Action.groupSetTranslateFunc.