None Output parameters Text Type This string has the following format: < language_code2 >[-< country/region_code2 >] where language_code2 is a lowercase two-letter code derived from ISO 639-1 and country/region_code2 is an uppercase two-letter code derived from ISO 3166 . Examples Usage Some Possible Results GetCurrentLocale () "en" - "English" language-country region. "en-US"