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From: mebhl@cc.nu.oz.au
Newsgroups: comp.sys.mac.programmer
Subject: @ Operator & Keydown events in Think Pascal?
Message-ID: <3234.27315d8c@cc.nu.oz.au>
Date: 2 Nov 90 01:50:36 GMT
Organization: University of Newcastle
Lines: 31

I have a problem with the @ Operator in THINK Pascal 3.0.

MacTutor April 1990 has a project to create editable lists & other dialog
user items, written by David Wilcox. In his keyboard unit, he borrows some
functions from MacTutor, May 1988, to test for various keydown events.

The crucial function has the form:

   function TestKey (i: longint): boolean;
      var
         myKeys: keyMap;
   begin
      GetKeys(myKeys);
      TestKey := BitTst(@myKeys[1], i)
   end;

When this is run, THINK Pascal tells me that:

   @ can't be applied to a component of a packed type.

Fair enough, I can accept this (after looking at the manual and IM).

But the code obviously used to work. What's changed, and what can I change
get it to work again? Or am I missing something obvious?

Any help greatly appreciated.
__________
Peter Lewis                    mebhl@cc.nu.oz.au
Mech. Eng.
University of Newcastle
NSW    2308    AUSTRALIA