RAWKEY users must be aware that RAWKEY codes can be different letters or
symbols on national keyboards.  If you need to use RAWKEY, run the codes
through RawKeyConvert() (see the "Intuition Input and Output Methods"
chapter) to get proper translation to correct ASCII codes. Improper
display or processing of high-ASCII international characters can be caused
by incorrect tolower()/toupper(), or by sign extension of character values
when switched on or assigned into larger size variables. Use unsigned
variables such as UBYTE (not char) for strings and characters whenever
possible. Internationally correct string functions are provided in the 2.0
utility.library.