Deprecated: This method is deprecated since ATK version 2.7.90. Please use atk_object_get_object_locale() instead.
Return: a UTF-8 string indicating the POSIX-style LC_MESSAGES locale of the document content as a whole, or NULL if the document content does not specify a locale.
Gets a UTF-8 string indicating the POSIX-style LC_MESSAGES locale of the content of this document instance. Individual text substrings or images within this document may have a different locale, see atk_text_get_attributes and atk_image_get_image_locale.