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From: ns@CAT.CMU.EDU (Nicholas Spies)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: Getting part of a field
Message-ID: <306@PT.CS.CMU.EDU>
Date: Wed, 4-Nov-87 22:15:57 EST
Article-I.D.: PT.306
Posted: Wed Nov  4 22:15:57 1987
Date-Received: Sun, 8-Nov-87 00:39:49 EST
References: <275@algol.sol.SPS.TRW.COM> <1482@mmm.UUCP>
Sender: netnews@PT.CS.CMU.EDU
Organization: Carnegie-Mellon University, CS/RI
Lines: 23

They way to avoid having the user bash the selected text is to save the
selection into a local variable and then click elsewhere to remove the
selection while still in the handler. Such as:

on mouseUp -- for any field named "xx", put into background or stack script
  if the name of the target contains "xx" then
     set lockText of the target to false
     repeat two times
       click at the clickLoc -- the last place clicked
      end repeat
     put the selection into found
     click at 1,1 -- to remove selection so user can't type over it
     set lockText of the target to false
     if found is not empty then
       put found -- or whatever else you want to do with word selected
     end if
  end if
end mouseUp

Often by remembering how you can do it by hand is (at least for now) the
way to program it in Hypertalk.

--Nick