Sets the function which is used to translate user-visible strings, for --help output. Different groups can use different GTranslateFuncs If func is NULL, strings are not translated.
If you are using gettext(), you only need to set the translation domain, see OptionGroup.setTranslationDomain.
the GTranslateFunc, or NULL
user data to pass to func, or NULL
a function which gets called to free data, or NULL
2.6
Sets the function which is used to translate user-visible strings, for --help output. Different groups can use different GTranslateFuncs If func is NULL, strings are not translated.
If you are using gettext(), you only need to set the translation domain, see OptionGroup.setTranslationDomain.