More image processing

[Ken Norris]

Howdy,

This locked up Rev (had to Restart):

on mouseUp
  put maskdata of image id 1032 into binDat
  repeat with x = 1 to the number of chars in binDat
    if charToNum(char 1 of binDat) ‚ 255 then
      put numToChar(0) into char x of binDat
    end if
  end repeat
  set the maskdata of image id 1032 to binDat
end mouseUp

I have no idea if I caused the problem or if it's a bug. What's wrong?

TIA,
Ken N.