National Language Support Macros

NLS provides the following macros:

IS_HIGH_SURROGATE
IS_LOW_SURROGATE
IS_SURROGATE_PAIR
LANGIDFROMLCID
MAKELANGID
MAKELCID
MAKESORTLCID
PRIMARYLANGID
SORTIDFROMLCID
SORTVERSIONFROMLCID
SUBLANGID