>>And what's wrong with ISALPHA([d])?
>
>I don't know since I can not work that quick on more than 10 things at once.
>
>I've tried
>
>

>LPARAMETERS nKeyCode, nShiftAltCtrl
>if between(nKeyCode, 32, 255) and isalpha(chr(nKeyCode))
>   NODEFAULT
>   DODEFAULT(Asc(Upper(Chr(nKeyCode))),nShiftAltCtrl)
>ENDIF

>
>And in quick tests didn't get errors.
>
>However, Copy-paste obviously didn't work and should be handled separately.

No, the"bug" is here only if you didn't pass second parameter:

LPARAMETERS nKeyCode, nShiftAltCtrl
if between(nKeyCode, 32, 255) and isalpha(chr(nKeyCode))
   NODEFAULT
   DODEFAULT(Asc(Upper(Chr(nKeyCode))))
ENDIF