ulBD_Mask can take any of the following values When used in the WM_LANGVIEWINFOCHANGED message.
#define BDAM_DATATYPE 0x01000000UL
#define BDAM_TEXT_ORIENTATION 0x00030000UL
#define BDAM_WND_ORIENTATION 0x00100000UL
#define BDAM_NUMERALS 0x00003000UL
#define BDAM_SYM_SWAP 0x00000100UL
#define BDAM_CSD 0x000000FFUL
#define BDAM_ALL (BDAM_DATATYPE |
BDAM_TEXT_ORIENTATION |
BDAM_WND_ORIENTATION |
BDAM_NUMERALS |
BDAM_SYM_SWAP |
BDAM_CSD )