last char, Unicode and other probs.

[Richmond]

So here I am with a field full of unicodeText
wanting to copy the last character across to another field,
so tried these possibilities:

on mouseUp
   set the useUnicode to true
   set the unicodeText of fld "OOTPUT" to the last char of fld "INNPUT"
end mouseUp

on mouseUp
   set the useUnicode to true
   put the charToNum(the last char of fld "INNPUT") into LSTCH
   set the unicodeText of fld "OOTPUT" to numToChar(LSTCH)
end mouseUp

and had no joy with either of them.

Any bright ideas would be welcomed; err, quite frankly, at this point 
the ideas don't
even have to be bright, they just have to work.

Richmond.