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From: borton@uva.UUCP (Chris Borton)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Implementing a Talking Menu
Message-ID: <681@uva.UUCP>
Date: 4 Apr 89 15:53:13 GMT
References: <3937@bgsuvax.UUCP> <7826@boulder.Colorado.EDU> <19742@srcsip.UUCP>
Reply-To: borton@uva.UUCP (Chris Borton)
Organization: Faculteit Wiskunde & Informatica, Universiteit van Amsterdam
Lines: 33

In article <19742@srcsip.UUCP> mnkonar@gorby.UUCP (Murat N. Konar) writes:
>There is a low memory global that holds a pointer to a routine that gets called
>whenever there is a menu down.  It gets called repeatedly until the mouse is
>released.  (Sorry I can't remember the name or location of this global. Check
>IM X-Ref)  Point this at a routine that examines another low memory global
>(which I also can't remember the name of) that holds the menuID and item
>currently highlighted.  Using the menu ID and item you can get the item
>text by calling GetMenuItem.
>
>I just remembered: the routine pointer is called MenuHook and I think the
>menuID and Item global is called MenuChoice.  Look 'em up.  Standard
>warnings about the use of lowmwmory globals apply.

Im I-369: MBarHook is the low-mem global for a hook routine to be repeatedly
called during a menu.  [Note: this is how QuicKeys and others do a
pseudo-menu bar via user-items & pop-up menus]

TheMenu is the currently highlited menu (word).

Note also that there are some changes in Inside Mac V, some of which only
apply to the Mac II.  For example, on a Mac II you can call MenuChoice()
after returning from a MenuSelect() zero to get the *disabled* item the
mouse was released over.  On a Plus/SE this has to be done directly by
looking at the global MenuDisable.  I haven't tried it, but what would
MenuChoice() do if called on a Plus/SE?  Aren't these systems supposed to
be compatible :-))) ?

Hope this helps a bit...

-cbb
-- 
Chris Borton	borton%uva@mcvax.{nl,bitnet,uucp} 
Rotary Scholar & Network Administrator, University of Amsterdam CS