I cam across a construct in the FXRuby examples which I've not seen
before..
..... lots of constants..(about 47 in total I believe)
  ID_INSERT_FILE,
  ID_EXTRACT_FILE,
  ID_WHEELADJUST,
  ID_LAST = enum(FXMainWindow::ID_LAST, 47)

and I'm assuming this generates a unique number for each piece of text,
which is subsequently used in the rest of the code. How does it work?

Graham