INT 2F - DOS 3.3+ KEYB.COM - SET KEYBOARD MAPPING AX = AD82h BL = new state 00h US keyboard (Control-Alt-F1) FFh foreign keyboard (Control-Alt-F2) Return: CF set on error (BL not 00h or FFh) CF clear if successful Notes: this function was undocumented prior to the release of DOS 5.0 the states 00h and FFh correspond with the byte stored at offset +02h in KEYBs INT 09h handler SeeAlso: AX=AD80h,AX=AD81h,AX=AD83h,AX=AD84h