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- To: Forsteremail@example.com
- Subject: QuickTime Examples
- From: kddlab!shpcsl.sharp.co.jp!ueda@uunet.UU.NET (UEDA masaya)
- Date: Tue, 18 Feb 92 13:25:14 JST
- Cc: firstname.lastname@example.org
- In-reply-to: Peter Forster's message of Mon, 17 Feb 92 16:21:02 +0100 <9202171521.AA00498@is.informatik.uni-stuttgart.de>
From: Peter Forster <Forster@informatik.uni-stuttgart.de>
Date: Mon, 17 Feb 92 16:21:02 +0100
But no luck. The only thing I got is the error message, that
the trap #_Gestalt is unimplemted.
;;;try to compile QTSample.lisp
? (require :movies)
> Error: Can't find the trap #_GESTALT! Consider (reindex-interfaces)
> While executing: CCL::LOAD-TRAP
> Type Command-/ to continue, Command-. to abort.
> If continued: pretend nothing happenned.
See the Restarts... menu item for further choices.
Because #_Gestalt in GestaltEqu.lisp is commented out.
#| Not in ROM
(deftrap _gestalt ((selector :ostype) (response (:pointer :signed-long)))
And this is email@example.com's comment posted to info-macl before.
From: Bill St. Clair <firstname.lastname@example.org>
To: email@example.com (Cris Johnson)
Subject: Re: MACL2.0b deftraps commented as "Not in ROM" - how to access?
In-Reply-To: Your message of Mon, 10 Jun 91 11:12:03 -0700.
Date: Mon, 10 Jun 91 17:09:02 -0400
Date: Mon, 10 Jun 91 11:12:03 PDT
From: firstname.lastname@example.org (Cris Johnson)
Subject: MACL2.0b deftraps commented as "Not in ROM" - how to access?
Some of the traps mentioned in the interface files included with MACL2.0
are commented out with the remark "Not in ROM" and coded with a
(:stack-trap #x0) specification. Is there some officially blessed way
to access these things?
I have access to MPW3.1 and have found in the past that I could include
LISP access to MPW functions via the foreign function interface and one
or more of the object files included with MPW. While I was happy to get
the access I wanted, it seemed like I was doing a lot of groping in the
dark with one object file causing others to be needed in ways I couldn't
predict, and it seemed that I ended up loading far more things than I
truely needed or wanted despite my best efforts at specifying options
to the foreign function interface calls. Is a procedure such as this
implied by the "Not in ROM" comment?
Your "groping in the dark" is one of the reasons that we have not yet
provided access to the "Not in ROM" traps. The two ways to define
them are by writing Lisp code to provide them (as in
"examples;mac-file-io.lisp") or by using the foreign function
interface to load the object files that would be used by a Pascal
program that references those traps. We don't have the people-time to
do the former for more than a smattering of the traps. We'll do the
latter for 2.0 final if we can make it work in time.
Do I have to acquire MPW3.2 to get
functions new to MAC-OS 2.0? If so, are (deftrap ) and the foreign
function interface related? - deftrap isn't documented.
I assume you mean 7.0, not 2.0. I don't have a current APDAlog at my
fingertips, but in the Spring 1990 issue, the "MPW Toobox Interfaces
and Libraries:Macintosh Programmer's Workshop Toolbox Interfaces and
Libraries v. 3.1" product was for sale for $25.00. It contained
interfaces and libraries for system software version 6.0.4. I assume
that the more recent version of the same product contains system 7.0
interfaces and libraries at a similar price. That failing, find a
developer friend who has the System 7.0 golden master CD, and get them
from there. The only possible hitch is that MPW version 3.2 may be
required to use the new libraries. The same old version of APDAlog
listed the MPW 3.1 update for $35.00. The 3.2 update is probably
You could certainly use DEFTRAP to generate FF-LOAD and FF-CALL forms,
though the only reason I can think of to do it that way would be if
you want to use the autoloading mechanism for the traps that you so
define. DEFTRAP is (badly) documented in Chapter 9 of the MCL 2.0b1
documentation (p. 241 in my copy).
So, when I wrote movie-window.lisp, I used ccl::gestalt to determine
whether the movie toolbox is installed or not, but this function is
not documented in MCL2.0 Reference.
I found it from (disassemble 'software-version).
And this is bill@apple's advice for me.
Date: Fri, 24 Jan 1992 10:39:11 -0500
To: email@example.com (UEDA masaya)
>I used ccl::gestalt (It is not documented too) to determine whether
>the movie toolbox is installed.
>Is this right or not recommended?
I can't officially sanction the use of non-exported functions, but your
use of ccl::gestalt is correct and I doubt that we're going to remove
it any time soon.