SPI_SETDEFAULTINPUTLANG top-level constant
int
const SPI_SETDEFAULTINPUTLANG
Sets the default input language for the system shell and applications.
The specified language must be displayable using the current system character set. The pvParam parameter must point to an HKL variable that contains the input locale identifier for the default language.
Implementation
const SPI_SETDEFAULTINPUTLANG = 0x005A;