Borland C ++ Builder FAQ
The content The last update: 12/12/2008

How to change current language?

The author: OlegGG
The initial link: - - -

At first we set the language identifier:
AnsiString langID = IntToHex (MAKELANGID (LANG_RUSSIAN, SUBLANG_DEFAULT), 8);//Russian 
AnsiString langID = IntToHex (MAKELANGID (LANG_ENGLISH, SUBLANG_DEFAULT), 8);//English
Remaining - see Help on MAKELANGID

Then we apply it:
ActivateKeyboardLayout (LoadKeyboardLayout (langID.c_str (), 0), 0);