Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!ginosko!rex!ames!uhccux!munnari.oz.au!murtoa.cs.mu.oz.au!rob
From: rob@cs.mu.oz.au (Robert Wallen)
Newsgroups: comp.sys.mac.programmer
Subject: Questions, questions, questions
Keywords: CNTL, DITL, CDEF, Multifinder
Message-ID: <2800@murtoa.cs.mu.oz.au>
Date: 16 Jul 89 03:27:51 GMT
Followup-To: comp.sys.mac.programmer
Organization: Comp Sci, Melbourne Uni, Australia
Lines: 37

A few questions for the programming intelligentsia:

First, has anyone else noticed the weirdness thats displayed when using CNTL
resources within a DITL.  After a week of hair-pulling over a custom CDEF, I 
find that using FindControl() on a normal window returned clicks in my control
fine, but using ModalDialog() ignored it.  Turns out that ModalDialog() seems
to look through the rectangles in the DITL; the CDEF gets fed the rectangle in
the CNTL resource.  If these two are not the same, it gets real hard to work.
And ResEdit doesnt make it easy to fix things either.  Does anyone have a quick
way of ensuring that both rectangles are the same?  Should I code around it?

Second:  In this silly world of Multifinder opening my desk accessories in their
own application layer (that of DA Handler), is there any programmatic way that
I can force them to be in the current applications layer? (Short of fiddling
the low memory KeyMap to pretend the option-key is down)

Third: I am allowed to pass messages 128 and up to MDEFs.  Would there be any
problem sending csCodes of 128 and up to DRVRs?  At the moment, I am using a 
silly call back scheme using _Status which works fine but it would be nicer to
just use _Control.

Fourth: Recently, I tried a program on a guy and was thoroughly disillusioned 
when it bombed badly -- he still used System 3.2 on his MacPlus and had no
intention of upgrading until he got a new hardware platform.  So I need to build
in my own support for PopUpMenuSelect() for him.  And GetMenuCmd(). And God
knows what others.  My question: Does anyone have a definitive list of what
traps appeared at each System rev?  I figure I am going to write a 'PACK' style
resource which will contain each of the traps that the old Mac is missing and
it may end up being implemented the same way that 'PTCH' resources are, only
based on System rev instead of machine.  Any comments?

Thanx in advance,   Rob  (rob@murtoa)

--------------
"I meant," said Ipslore, bitterly, "what is there in this world that makes
living worth while?"  Death thought about it. CATS, he said eventually, CATS
ARE NICE.   -- Sourcery,  Terry Pratchett