Re: change typing language in MS-DOS using assembly
That's quite some time ago, but AFAIR there's no DOS API function available for that purpose (I may be wrong, though).
Which is the best-fit approach probably depends on the scope to which you intend to change the keyboard layout for the most part. If it's just your own application, it's probably easiest to catch the keystrokes by hooking into INT 09h and do the mapping from scan codes to character codes yourself. Your app would then retrieve the characters entered by calling your own routines.
If the above doesn't fit your needs you may gain some inspiration by reading pages at http://www.ctyme.com/rbrown.htm, but that's quite a bunch of stuff to read, much of which is rather specific to software components you're probably not using at all anyway.
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