This appendix contains detailed information about national language support in Microsoft® Windows®. The information presented here pertains to locale identifiers, LCTYPE constants, country codes, and language identifiers.
A locale identifier (LCID) is a DWORD value containing the language identifier in the lower word and the sorting ID as well as a reserved value in the upper word. The identifier supplied in an LCID is a standard international numeric abbreviation. This LCID has the components necessary to uniquely identify one of the installed system-defined locales.
Applications can use the MAKELCID macro to create LCID values.
There are two predefined LCID values: LOCALE_SYSTEM_DEFAULT is the system default locale, and LOCALE_USER_DEFAULT is the current user’s locale.