Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!sdd.hp.com!wuarchive!udel!rochester!rit!sem8019
From: sem8019@cs.rit.edu (Sigrid E Mortensen)
Newsgroups: comp.sys.mac.programmer
Subject: menu def proc problem
Message-ID: <2359@cs.rit.edu>
Date: 6 Jun 91 17:53:13 GMT
Sender: news@cs.rit.edu
Distribution: usa
Organization: Rochester Institute of Technology, Rochester, NY
Lines: 34

I have defined my own menu data structure to hold some extra information.  In 
the process, I also decided to make the list of items a linked-list.  In other
words, it is not at all like the original (string for the menu title and item
list) data structure.  

I borrowed and modified the DSP sample code "Concordia" for composing my
menu definition procedure, and ALMOST everything works.  The one remaining
difficulty is with hierarchical menus.  Although I can detect the presence of
a submenu enough to draw the right arrow, my custom menu does not recognize
any submenus in the "mChooseMsg;" the submenu does not pop up to allow an item
from it to be chosen.  My interpretation is that this is a problem with the Mac
knowing that the submenu is there (in order to send IT the choose message).
Since my data structure has changed so, the Mac cannot be expected to know that
there is a submenu there that needs to be popped up.

My questions are: 
  1) Is there some way to let the Mac know that the submenu
	is there? 
  2) If not, should I pop up the menu myself?  (I tried this, and it
	crashed.  One problem then is how to send the information back
	to the Mac and my calling program that a) the original menu must
	be closed up and b) the menu in which an item was selected was
	the submenu, not the "owner" menu.
  3) Barring all the above solutions, do I need to write my own menu BAR
	definition procedure to handle my own hierarchical menus? 
  4) If so, is there any sample C code publicly available to guide a person
	in doing this?

Any help you can give would be greatly appreciated.


					-- Sigrid Mortensen

sem8019@cs.rit.edu