Celestin Apprentice 5/Apprentice-Release5.iso/Information/CSMP Digest/volume 1/csmp-v1-170.txt

Text File | 1992-12-31 | 39.1 KB | 1,051 lines | [TEXT/R*ch]

C.S.M.P. Digest             Tue, 18 Aug 92       Volume 1 : Issue 170

Today's Topics:

    Sockets interface to MacTCP
    Beginner want to know about _Jackson
    Selecting graphics
    Building Installation Disks
    Gettting the size of a window or Graf Port
    How to play MIDI resources?
    What is LDIVT (referenced in an MPW .o/.lib file?)
    texedit records >32K (SUMMARY)
    Has anybody got disk dragging to work?
    ioCompletion and AppleTalk
    Catching phys ATalk connection



The Comp.Sys.Mac.Programmer Digest is moderated by Michael A. Kelly.

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-------------------------------------------------------

From: [e-mail] (Michael - Summers)
Subject: Sockets interface to MacTCP
Date: 14 Jul 92 16:30:51 GMT
Organization: The Portal System (TM)

Does anyone in NetLand have a pointer to a UNIX sockets interface that
will work with MacTCP?

Much thanks in advance, Mike.

+++++++++++++++++++++++++++

From: [e-mail] (Jim Browne)
Organization: University of Illinois at Urbana
Date: Tue, 14 Jul 1992 22:39:04 GMT

[e-mail] (Michael - Summers) writes:

>Does anyone in NetLand have a pointer to a UNIX sockets interface that
>will work with MacTCP?

>Much thanks in advance, Mike.

You can try Charlie's socket library in misc/unsupported on ftp.ncsa.uiuc.edu


- --
Jim Browne                                          | [e-mail]  |
NCSA/STG System Administrator                       | [e-mail] |
System Administration: Where the fun never ends...  | [phone]         |
I've nuked the .sig 'cause Usenet Looooooooooosers are retentive about spelling.

+++++++++++++++++++++++++++

From: [e-mail] (Eric E Johnson)
Organization: University of Illinois at Urbana-Champaign
Date: Wed, 15 Jul 1992 00:02:53 GMT

>[e-mail] (Michael - Summers) writes:

>>Does anyone in NetLand have a pointer to a UNIX sockets interface that
>>will work with MacTCP?

>>Much thanks in advance, Mike.

If you are not a fan of sockets, you can always try the Think C MacTCP
classes.  You'll find them at ftp.brown.edu in /pub/tcl/...

- --
Eric E Johnson             | "For a successful technology, reality must
[e-mail]     |  take precedence over public relations, for
[e-mail]  |  Nature cannot be fooled." - Richard Feynman

+++++++++++++++++++++++++++

From: [e-mail] (David Peterson)
Date: 15 Jul 1992 12:58:49 -0700
Organization: University of Southern California, Los Angeles, CA


In article <[e-mail]>, [e-mail] (Eric E Johnson) writes:
|> >[e-mail] (Michael - Summers) writes:
|>
|> >>Does anyone in NetLand have a pointer to a UNIX sockets interface that
|> >>will work with MacTCP?
|>
|> >>Much thanks in advance, Mike.
|>
|> If you are not a fan of sockets, you can always try the Think C MacTCP
|> classes.  You'll find them at ftp.brown.edu in /pub/tcl/...
|>

I've got a C++ class that wraps around the MacTCP calls pretty well. Its
got some higher level routines that mimic BSD sockets (sort of). All the
receiving is done "at interupt" so you don't have to mess with timeouts
and retries.

If anyone is interested drop me a line.

- -dave.

Note: You won't be able to use my code to compile BSD source, the semantics
are similar, but not the same. Even though, its easier than the suite of
PBControl calls.

---------------------------

From: [e-mail] (Saiful Azuan Abdul Aziz)
Subject: Beginner want to know about _Jackson
Organization: Rensselaer Polytechnic Institute, Troy, NY
Date: Wed, 15 Jul 1992 09:43:45 GMT

Hi all Mac gurus,
    Recently, while doing some programming, I got a bus error. MacsBug told me that it happened while my program tried to fetch some instructions in _Jackson. System Error #25 also occurred while my program tried to call _Jackson.

Question : What is the trap called _Jackson. What _Jackson did exactly. Is there any documentation about this trap? I tried to look up in IM but no luck at all. Can somebody tell me.

Extra credit : Who is _Jackson? Somebody in apple may be?

Thanks in advance.

Saiful
**********
internet: [e-mail] bitnet:saiful@rpitsmts aol:azrin compu$erve:70760,371


+++++++++++++++++++++++++++

From: [e-mail]
Date: Wed, 15 Jul 1992 15:06:45 GMT
Organization: Actrix Information Exchange

In article <50jx#[e-mail]> [e-mail] (Saiful Azuan Abdul Aziz) writes:

> Extra credit : Who is _Jackson? Somebody in apple may be?

_Jackson is "Jackson Pollock", a famous abstract expressionist drip painter --
check your copy of the after dark module "Modern Art" for more details :-)

It was also the internal name for 32-bit Quickdraw.

The chances are that your crash has nothing to do with the _Jackson routine,
it's just that Macsbug couldn't find any better name for that part of the
ROMs -- you'll probably find that the offset was something humungous, e.g.
_Jackson + XXXX.  _Jackson seems to have taken the place of _StripAddress
as the bogus crash point of choice...

- -- Bruce
- --
[e-mail]   Twisted pair: [phone]
BIX: brucehoult                 Last Resort:  PO Box 4145 Wellington, NZ
"Cray's producing a 200 MIPS personal computer with 64MB RAM and a 1 GB
hard disk that fits in your pocket!"   "Great!  Is it PC compatable?"

+++++++++++++++++++++++++++

From: [e-mail] (Humayun Lari)
Date: 15 Jul 92 19:34:38 GMT
Organization: University of North Carolina, Chapel Hill

In article <[e-mail]> [e-mail] writes:
>The chances are that your crash has nothing to do with the _Jackson routine,
>it's just that Macsbug couldn't find any better name for that part of the
>ROMs -- you'll probably find that the offset was something humungous, e.g.
>_Jackson + XXXX.

Since the original poster said that Macsbug reported a system error of 25,
it could well be that QuickDraw simply ran out of memory. If so, the
PC should point to a _Debugger instruction (I think the location is _Jackson
+ $0000). Of course, this should only happen if the programmer's done something
insanely strange. :-) (This is documented in the Q&A Stack, BTW).

>  _Jackson seems to have taken the place of _StripAddress
>as the bogus crash point of choice...

Yeah, why *does* that always happen?!?! :-)


Humayun Lari
([e-mail])
ObSig: "Technology changes rapidly; people and meaning do not." -- Kevin Bjorke

+++++++++++++++++++++++++++

From: [e-mail] (Steven L Levitt)
Organization: Columbia University
Date: Wed, 15 Jul 1992 19:09:23 GMT

In article <50jx#[e-mail]> [e-mail] (Saiful Azuan Abdul Aziz) writes:
>Hi all Mac gurus,
>    Recently, while doing some programming, I got a bus error. MacsBug told me that it happened while my program tried to fetch some instructions in _Jackson. System Error #25 also occurred while my program tried to call _Jackson.
>
>Question : What is the trap called _Jackson. What _Jackson did exactly. Is there any documentation about this trap? I tried to look up in IM but no luck at all. Can somebody tell me.
>
>Extra credit : Who is _Jackson? Somebody in apple may be?
>
>Thanks in advance.
>
>Saiful
>**********
>internet: [e-mail] bitnet:saiful@rpitsmts aol:azrin compu$erve:70760,371
>


I believe _Jackson may be a QuickDraw related trap.  In a book I recently
bought, _Programming QuickDraw_, the authors, David A. Surovell, Frederick M.
Hall and Konstantin Othmer, make passing reference to the fact that when color
QuickDraw was being developed, it was nicknamed Jackson Pollack (asp?, after
the artist.  I don't believe the book ever mentions any kind of trap, however.
- ----------------
Steven L. Levitt  [e-mail]
An Undergrad


---------------------------

From: [e-mail] (Elliotte Rusty Harold)
Subject: Selecting graphics
Date: 15 Jul 92 12:38:37 GMT
Organization: New Jersey Institute of Technology


    Can anyone help me with some advice or sample source code on selections
in a graphics program?  All my references deal strictly with selecting things
as text.  I want to be able to click and drag over a rectangular grid of
squares and store the resulting rectangle as a PICT and as a private kind of
scrap on the clipboard.  I'd like to draw a dotted-line-bordered rectangle as I
drag as seems to be the standard in draw and paint applications.  Does anyone
have any hints for doing this?

Elliotte Rusty Harold        Department of Applied Mathematics
[e-mail]        New Jersey Institute of Technology
[e-mail]        Newark, NJ 07103

+++++++++++++++++++++++++++

From: [e-mail] (David Phillip Oster)
Organization: Whole Earth 'Lectronic Link
Date: Thu, 16 Jul 1992 05:58:57 GMT

In article <[e-mail]> [e-mail] (Elliotte Rusty Harold) writes:
>    Can anyone help me with some advice or sample source code on selections
>in a graphics program?
The basic idea is as follows (forgive me, this is off the top of my head)
Point where, anchor, oldWhere;
Rect    marqueeR;

GetMouse(&where);
oldWhere = anchor = where;
PenPat(gray);
PenMode(patXor);
while(StillDown()){
    GetMouse(&where);
    if( ! EqualPt(where, oldWhere)){
        FrameRect(&marqueeR);
        Pt2Rect(where, anchor, &marqueeR);
        FrameRect(&marqueeR);
        oldWhere = where;
    }
}
PenNormal();

In order to get the "moving ants" animation, things are a little trickier.
Instead of the n ormal 0101010 gray, you use 011011011 as the gray.
Each time through the loop, you check TickCount(). If TickCount() has changed,
you compute a new pattern such that when you Xor the new pattern with
0110110 you get
1011011 and FrameRect the marqueeR with this combined pattern. You then
remember that the pattern of the marqueeR is now 1011011, so you can handle
updtae events. You put the same code in your idle event handler. The whole
works takes a couple of 100 lines of code to do it right.

---------------------------

From: [e-mail] (Scott Kelley)
Subject: Building Installation Disks
Date: 15 Jul 92 15:21:18 GMT

Can anyone offer me any suggestions on how I should set up our
installation procedure for our software?

We're writing a large multimedia program using MacroMind Director.
Currently the files take 7.5mb of disk space, but this will
eventually get a LOT bigger (i.e. someday we may have to break down
and go to CD's) since the project is still in it's early stages.

We'd like to have as simple a setup as possible, since most of the
people we send disks out to (they're only demo copies now, showing
what we've already done) aren't all that computer-literate. Our
current setup requires the user to run two self-extracting archives,
and then copy some additional files into specific folders with
specific names. Very messy.

What I'm wondering is, can any of the commercial archivers (Stuffit,
Compact Pro) build an automated self-extracting archive that spans
multiple volumes? I've played with some of them, and all I can seem
to get is an archive that the user has to combine manually. But we
need the process to be automatic. (I should also add that so far we
haven't generated a file that won't fit onto an HD disk after it's
been compressed, but that will eventually change too...)

The other alternative I'm thinking of is licensing Apple's
installer, along with a compression engine for the installer (like
the one used in the Word 5 install). We don't need all of the fancy
options that Apple's installer offers YET, but that too may change.

Regardless of what we do, some kind of compression is required. We
get about 50-60% compression of our files no matter what archiver we
use.

Can anyone give me any suggestions or recommendations?

Thanks,

Scott

- -------------------------------------------------
Scott Kelley, [e-mail], [phone]
Multimedia Interactive Learning Laboratory (MILL)
Department of Biology, UC San Diego
- -------------------------------------------------


+++++++++++++++++++++++++++

From: [e-mail] (Anders Wallgren)
Date: 15 Jul 92 16:41:01 GMT
Organization: Verity, Inc., Mountain View, CA, USA

In article <[e-mail]> Scott Kelley,
[e-mail] writes:
>What I'm wondering is, can any of the commercial archivers
(Stuffit,
>Compact Pro) build an automated self-extracting archive that spans
>multiple volumes?

Stuffit has action atoms for Apple's Installer that allows you to
do this.

---------------------------

From: Jerome Chan <[e-mail]>
Subject: Gettting the size of a window or Graf Port
Organization: Alethea, The Twilight World!
Date: Thu, 16 Jul 92 03:02:58 GMT

  How does one get the dimensions of a window? I'm trying to centre a
window before bringing it up. System 7 has the auto positioning (check
out the ResEdit 2.11) but I am writing for some system 6.x machines as
well.

  Do I use portRect? Someone mentioned that I should use visRgn instead.
Is there a FAQ somewhere that I could look through?

- ---
 Fading

"No Lah! Sure or not one? Dunno leh! Nebber Mind! Like that one!
Terriblur Lah!"

+++++++++++++++++++++++++++

From: [e-mail] (David Phillip Oster)
Organization: Whole Earth 'Lectronic Link
Date: Thu, 16 Jul 1992 06:20:01 GMT

In article <[e-mail]> Jerome Chan <[e-mail]> writes:
_>  How does one get the dimensions of a window? I'm trying to centre a
_>window before bringing it up.

_>  Do I use portRect? Someone mentioned that I should use visRgn instead.
_>Is there a FAQ somewhere that I could look through?

thePort->portRect gives you the size of the window's content area. If the window
almost fills the screen, this can put the titlebar under the menubar.  Better
you should use (**thePort->visRgn).rgnBBox (good idea to copy it into a
temporary rect, in case the stuff you are using moves memory, since the visRgn
is a handle.)  The visRgn is in window local coordinates, so for a normal,
20 pixel high title bar, the top will be at -20.

+++++++++++++++++++++++++++

From: [e-mail] (JohnC)
Organization: The Royal Society for Putting Things on Top of Other Things
Date: Thu, 16 Jul 1992 16:44:05 GMT

In article <[e-mail]> [e-mail] (David Phillip Oster) writes:
>In article <[e-mail]> Jerome Chan <[e-mail]> writes:
>_>  How does one get the dimensions of a window? I'm trying to centre a
>_>window before bringing it up.
>
>_>  Do I use portRect? Someone mentioned that I should use visRgn instead.
>_>Is there a FAQ somewhere that I could look through?
>
>thePort->portRect gives you the size of the window's content area. If theu
>window almost fills the screen, this can put the titlebar under the menubar.
>Better you should use (**thePort->visRgn).rgnBBox (good idea to copy it into a
>temporary rect, in case the stuff you are using moves memory, since the visRgn
>is a handle.)  The visRgn is in window local coordinates, so for a normal,
>20 pixel high title bar, the top will be at -20.

Um, I think you want to look at the boundary box of the structure region,
not the visRgn.  The titlebar area is not part of the grafPort of the window
itself.

- --
John Cavallino                  |  EMail: [e-mail]
University of Chicago Hospitals |         [e-mail]
Office of Facilities Management | USMail: 5841 S. Maryland Ave, MC 0953
B0 f++ c+ g+ k s++ e+ h- pv     |         Chicago, IL  60637

---------------------------

From: [e-mail] (Mark Hayes)
Subject: How to play MIDI resources?
Date: 16 Jul 92 04:41:37 GMT
Organization: Boston University, Boston, MA, USA

I was just poking around with ResEdit inside the game "Prince of Persia"
(which features some very nice music), and noticed a set of resources
with type "MIDI". Much to my surprise, when I looked at the actual data,
the individual resources turned out to be in standard MIDI file format!
And indeed, when I copied one out and saved it in a file, I was able to
import it into the MIDI application TRAX, and there was my Yamaha synth,
playing the theme from "Prince of Persia"!

My question is, how does the game play those MIDI resources? Is there
direct support in the system for this, or would the developers have had
to do a lot of MIDI support coding themselves? I couldn't find any help
on this in Inside Macintosh, though there were a few cryptic references
to MIDI; volume VI, in fact, says not a word about MIDI. Help, anyone?
If there is direct system support for playing MIDI files, I would love
to take a shot at coding what might be a fairly simple application to
play MIDI files directly through the Mac sound hardware. As far as I
know, there are no applications, and certainly no shareware applications,
that currently do this.

Thanks to anyone for any help they can offer.

+++++++++++++++++++++++++++

From: [e-mail] (Joe Zobkiw)
Date: 16 Jul 92 16:56:05 GMT
Organization: The World Public Access UNIX, Brookline, MA

Playing MIDI resources using the Sound Manager is something that you have
to roll yourself. There is no direct support for this in the Toolbox. Not yet
anyway ;)

There is a program available that exhibits this technology called MIDI CD. It
is one of the best implementations I have seen (and one of the _only_)


- --
- -------------------------------------------------------------
joe zobkiw         [e-mail]        aol: aflzobkiw

---------------------------

From: [e-mail] (Per Mildner)
Subject: What is LDIVT (referenced in an MPW .o/.lib file?)
Organization: Computing Science Dept.,Uppsala University, Sweden
Date: Thu, 16 Jul 1992 10:38:55 GMT


I'm trying to convert some MPW .o and .lib files for use with Think C
(5.02). I get a link error for a routine LDIVT. When I add one of my
own it gets called (surprise :-) and I have little idea what it should
do. I know about ldiv and the ldiv_t type but that is probably not the
same thing. I have looked in the MPW C manuals but cannot find it.
Any help appreciated,
- --
Per Mildner            [e-mail]
Computing Science Dept.        tel: [phone]
Uppsala University, Sweden    fax: [phone]

+++++++++++++++++++++++++++

From: [e-mail] (Per Mildner)
Date: 16 Jul 92 15:22:18 GMT
Organization: Computing Science Dept.,Uppsala University, Sweden

In article <[e-mail]> [e-mail] (Per Mildner) writes:

   I'm trying to convert some MPW .o and .lib files for use with Think C
   (5.02). I get a link error for a routine LDIVT. ...
   --

After a little mucking around I found this to be the long div
instruction missing in processors less than 68020. (Also confirmed by
a bug note for MPW C 3.2)

long LDIVT(void)
{ register long x;
  register long y;

  asm {
    move.l d0, x
    move.l d1, y
  };
  return x/y;
}

seems to do the trick. Somebodys code generator is bogus as y always
was 8 in the libs...
If somebody's interested, this trick makes the expensive Oracle libs
work with the Think C debugger...
Happy hacking,
- --
Per Mildner            [e-mail]
Computing Science Dept.        tel: [phone]
Uppsala University, Sweden    fax: [phone]

---------------------------

From: [e-mail] (Roy Wood)
Subject: texedit records >32K (SUMMARY)
Organization: International Shared Information Service (Ottawa)
Date: Sat, 11 Jul 92 17:59:15 GMT

Thanks to everyone who responded to my question about whether there is a
publicly available hack to replace TextEdit and correctly work with records
larger than 32K.  Basically, there's a TCL package available from
ftp.brown.edu, or a commercial package.  Here's the info:

From: [e-mail] (Joe Zobkiw)

Check out ftp.brown.edu in the pub/tcl directory. There is a file by
Chris Wysocki called (I think) CPEdit.c which is a THINK C TCL class
that implements a >32K text editing engine.

(Vince Vann mentioned this package, too)


From: [e-mail] (Rich Siegel)
Subject: Re: textedit files >32K ?

Thanks for your interest in the Programmer's Editor Package (PE Package).
If you wish to order, you should send payment and a request to me
directly:

Rich Siegel
6 Village Way #23
Natick, MA 01760

Cashier's check or bank draft is preferred. US funds are required. Orders
paid with personal check will be held until the check clears. Presently,
the time to fill an order is two to three weeks.

Here is pricing info. If you have specific technical questions or pricing
needs, please let me know.

- ----

Pricing is as follows:

    -   single-user upgrade for users of the Symantec CAPPS package       $25
            (requires original labeled floppy or other conclusive
                proof or purchase)

    -   single-user new copy price (includes printed documentation)       $75


    Licenses are available to use PEP for other than individual use.
    Add the price to the single-user upgrade or single-user new copy
    price, whichever is appropriate.

    -   product license for producers of freeware programs                $1
        (for software authors who will release free programs
            which use any part of the PEP package)

    -   product license for producers of shareware programs               $50
        (for software authors who will release shareware programs
            which use any part of the PEP package)

    -   product license for commercial or in-house use                    $100
        (for software authors who will release programs for
        commercial sale or corporate in-house use)



Again, thanks to all who replied.

- -Roy

---------------------------

From: [e-mail] (Matthew Xavier Mora)
Subject: Has anybody got disk dragging to work?
Date: 14 Jul 92 01:37:59 GMT
Organization: SRI International

In article <[e-mail]>, [e-mail] (Stephan -
Somogyi) wrote:
>
> [e-mail] (Matthew Xavier Mora) writes:
>
> >I'm working on a system seven only app and I can't get disk "drag and drop"
> >to work. I did everyting IM vol 6 said to do but the finder will not hilight
> >my app when I drag a disk icon over it.
>
> Works swimmingly for my app. I have a BNDL/FREF with 'disk' as the doc type
> and no icon for that type.
>
> Could you expound on what you've tried, to provide some context? With more
> information we might be able to narrow this down.
>
> ________________________________________________________________________
> Stephan Somogyi            peace, happiness, pancakes            MacUser

Sure,

I created a bndl resource with a file type of 'APPL','trak', and 'disk'.
The size resource says that I'm apple event aware. I don't have a '****'
file type because I don't deal with all files. Just certain disks, mainly
cd audio disks. In my testing I'm trying to drag any kind of disk but none
highlight my app and launch it. I rebuilt my desktop but to no avail. My
beta testers say that it doesn't work on their macs either (assuming that
my desktop might be littered with multiple versions of my program.) I would
be glad to send the program to someone if they think they can tweek the
bndl to get it to work. I guess my main question is do I need the 'fold'
and '****' to make the 'disk' part work?

Matt

+++++++++++++++++++++++++++

From: [e-mail]
Organization: Campus Computing Sites, University of Michigan-Ann Arbor
Date: Tue, 14 Jul 92 06:16:16 GMT

In article <[e-mail]> [e-mail] (Matthew Xavier Mora) writes:
>In article <[e-mail]>, [e-mail] (Stephan -
>Somogyi) wrote:
>>
>> [e-mail] (Matthew Xavier Mora) writes:
>>
>> >I'm working on a system seven only app and I can't get disk "drag and drop"
>> >to work. I did everyting IM vol 6 said to do but the finder will not hilight
>> >my app when I drag a disk icon over it.
>>
>> Works swimmingly for my app. I have a BNDL/FREF with 'disk' as the doc type
>> and no icon for that type.
>>
>I created a bndl resource with a file type of 'APPL','trak', and 'disk'.
>The size resource says that I'm apple event aware. I don't have a '****'
>file type because I don't deal with all files. Just certain disks, mainly
>cd audio disks.
>I guess my main question is do I need the 'fold' and '****' to make the 'disk'
>part work?
>
    For reasons that no one has ever explaned to me (other than a bug
in the Finder ;), you MUST have '****' to use either fold or disk - you
don't have to have all three.

- --
- -----------------------------------------------------------------------
Leonard Rosenthol          Internet: [e-mail]
Director of Advanced Technology   AppleLink: MACgician
Aladdin Systems, inc.          GEnie:     MACgician

+++++++++++++++++++++++++++

From: [e-mail] (Matt Slot)
Date: 14 Jul 92 13:49:53 GMT
Organization: University of Michigan, CAEN Mac-Systems


I had similar problems getting Appleshare File Servers to drag-n-drop. My
FREF's now include
   APPL, PREF, disk, & fold. I don't use the wildcard, and my drop seems
to work. I was told
   that the Finder treats AShare File Servers as folders for some strange
reason, and that is
   why I have to deal with the whole problem of distinguishing real
folders from volumes.
I don't know how well this applies to your problem, but perhaps you may
investigate what the
   Finder thinks it is when it send the ODOC event. Remember that
something is treating the
   CD as a mountable volume, and is probably mucking about with the
volume queue to do it--
   so perhaps Audio-CD's have a special file type.

[e-mail]
Matt Slot, CAEN Mac-Support

+++++++++++++++++++++++++++

From: [e-mail] (Greg L. Anderson)
Date: 15 Jul 92 00:25:31 GMT
Organization: Apple Computer Inc., Cupertino, CA

In article <[e-mail]> [e-mail] writes:
>>I guess my main question is do I need the 'fold' and '****' to make the 'disk'
>>part work?

>    For reasons that no one has ever explaned to me (other than a bug
>in the Finder ;), you MUST have '****' to use either fold or disk - you
>don't have to have all three.

Nope, not true--I just built an App with 'fold' and 'disk', and it
accepts both folders and disks.  It does not have '****' in the FREF.

The bad news is that you must have 'fold' in your FREF if you expect to
receive drops from disks.  This is because the 7.0 Finder gets confused when
it sees a disk, and thinks it's a folder and checks to see if your app will
accept 'fold' instead of checking for 'disk'.  Any app with 'fold' in its
FREF will accept drops from both folders and disks in System 7.0 and
7.0.1.  'disk' is never checked for in these versions of the Finder.

7.1 fixes the bug, though, so you should have 'disk' in your FREF if you want
to be able to receive drag-and-drop disks and not break with future Finders.

- --
=====================   ===========================   =====================
Greg Anderson           Apple Computer, Inc.            O    Ponnuki    O
Macintosh Bodhisattva   Macintosh System Software      O O  is  ideal  O O
[e-mail]       Finder Team                     O     shape     O
=====================   ===========================   =====================

+++++++++++++++++++++++++++

From: [e-mail] (Nigel Stanger)
Date: 15 Jul 92 15:26:37 +1300
Organization: University of Otago, Dunedin, New Zealand

[e-mail] (Matt Slot) writes:
>
> I had similar problems getting Appleshare File Servers to drag-n-drop. My
> FREF's now include
>    APPL, PREF, disk, & fold. I don't use the wildcard, and my drop seems
> to work. I was told
[...]

You'll like this. One of my apps handles disk dropping, but it's
BNDL only contains '****' and 'fold'. It doesn't have 'disk' at
all! Works great. And as far as the app is concerned, it's just
another FSSpec. You have to test for parID = fsRtParID to tell
whether it's a disk or not.

- ----------------------------------------------------------------------
Nigel Stanger,                  Internet: [e-mail]
University of Otago,            Phone: [phone]
Dunedin, NEW ZEALAND.           Fax:   [phone]
String Quartet: see RUBBER BAND.

+++++++++++++++++++++++++++

From: Andreas Wuertz <[e-mail]>
Organization: Swiss Federal Institute of Technology, TIK
Date: Wed, 15 Jul 1992 07:15:27 GMT

In article <[e-mail]> Matthew Xavier Mora,
[e-mail] writes:
>I'm working on a system seven only app and I can't get disk "drag and
>drop" to work. I did everyting IM vol 6 said to do but the finder
>will not hilight my app when I drag a disk icon over it. Beta testers
>tell me it won't work on their machines either.  ( I thought it might be
>a desktop database problem) So how do you get disk dropping to work?
Stupid Question: Did you set the app's bundle bit?

Andy from TIK

=======================================================
The earliest time for a program to be bug-free is,
when it's out of date. The latest time for a programmer
to retire is, when he writes such a program.
=======================================================

+++++++++++++++++++++++++++

From: Andreas Wuertz <[e-mail]>
Organization: Swiss Federal Institute of Technology, TIK
Date: Wed, 15 Jul 1992 07:16:19 GMT

In article <[e-mail]> Matthew Xavier Mora,
[e-mail] writes:
>I'm working on a system seven only app and I can't get disk "drag and
>drop" to work. I did everyting IM vol 6 said to do but the finder
>will not hilight my app when I drag a disk icon over it. Beta testers
>tell me it won't work on their machines either.  ( I thought it might be
>a desktop database problem) So how do you get disk dropping to work?
Stupid Question: Did you set the app's bundle bit?

Andy from TIK

=======================================================
The earliest time for a program to be bug-free is,
when it's out of date. The latest time for a programmer
to retire is, when he writes such a program.
=======================================================

---------------------------

From: [e-mail]
Subject: ioCompletion and AppleTalk
Organization: School of Chemistry, University of Sydney
Date: Wed, 15 Jul 1992 01:14:02 GMT


What parameters are passed back to an ioCompletion routine in AppleTalk?
Say for example in a ATPParamBlock, where can I hide my oldA5 pointer?
Any examples of ioCompletion routines would be appreciated....

Thanks Adrian.

- -----------------------------------------------------------------------------
Adrian Wong, Dept.of Theoretical Chemistry     [e-mail]
University of Sydney NSW 2006 Australia        061-2-692 4137


+++++++++++++++++++++++++++

From: [e-mail] (Joe Zobkiw)
Date: 14 Jul 92 17:00:12 GMT
Organization: The World Public Access UNIX, Brookline, MA

<< What parameters are passed back to an ioCompletion routine in AppleTalk?
Say for example in a ATPParamBlock, where can I hide my oldA5 pointer?  >>

Most parameter blocks contain a refcon that you can use for your own data.
You can also do something like in many cases:

typedef struct {
    ATPParamBlock    atpBlock;
    MyXtraInfo    xtraInfo;
} CustomATPBlock;

In theory, you can pass a CustomATPBlock to any routine that wants a
ATPParamBlock and it _might_ work for you. This is mostly seen when
people want to have data associated with a WinowPtr. You might see

typedef struct {
    WindowPtr    w;
    MyXtraInfo    xtraInfo;
}

Hope this helps.


- --
- -------------------------------------------------------------
joe zobkiw         [e-mail]        aol: aflzobkiw

+++++++++++++++++++++++++++

From: [e-mail] (JohnC)
Date: 14 Jul 92 17:27:43 GMT
Organization: The Royal Society for Putting Things on Top of Other Things

In article <[e-mail]> [e-mail] (Joe Zobkiw) writes:
><< What parameters are passed back to an ioCompletion routine in AppleTalk?
>Say for example in a ATPParamBlock, where can I hide my oldA5 pointer?  >>
>
>Most parameter blocks contain a refcon that you can use for your own data.
>You can also do something like in many cases:
>
>typedef struct {
>    ATPParamBlock    atpBlock;
>    MyXtraInfo    xtraInfo;
>} CustomATPBlock;
>
>In theory, you can pass a CustomATPBlock to any routine that wants a
>ATPParamBlock and it _might_ work for you. This is mostly seen when
                      ^^^^^^^
>people want to have data associated with a WindowPtr.

I see no need to qualify your statement with "might".  There's no reason that
such a tactic would fail in any case involving a fully-documented OS
structure.  People do it all the time.

- --
John Cavallino                  |  EMail: [e-mail]
University of Chicago Hospitals |         [e-mail]
Office of Facilities Management | USMail: 5841 S. Maryland Ave, MC 0953
B0 f++ c+ g+ k s++ e+ h- pv     |         Chicago, IL  60637

+++++++++++++++++++++++++++

From: [e-mail] (Michael Peirce)
Date: 14 Jul 92 17:57:53 GMT
Organization: Peirce Software


In article <[e-mail]> (comp.sys.mac.programmer), [e-mail] writes:
>
> What parameters are passed back to an ioCompletion routine in AppleTalk?
> Say for example in a ATPParamBlock, where can I hide my oldA5 pointer?
> Any examples of ioCompletion routines would be appreciated....

I describe a useful technique in Programming With AppleTalk.  It works
like this:

Declare an "extended" parameter block something like this:

    myATPParamBlock = RECORD
        dataPtr        : LongInt;
        realATPPB    : ATPParamBlock;
    END; {myATPParamBlock}

This puts the address of your data block (containing any context you
need at interrupt time) four bytes in front of the parameter block.
This means that it can be easily access off of register A0 at completion
time (A0 contains a pointer to your parameter block).  I prefer to
put the extra data pointer in front of the block because then the
same code works with a variety of parameter block sizes.

Next I issue an AppleTalk call something like the following:

    IF PGetRequest(@inATPPB.realATPPB,kASYNC) <> noErr THEN ...

I set my ioCompletion routine to point to some assembly language glue
that looks like the following:

;---------------------------------------------------------
;
;    Example Resident Code Macro Glue
;
;    The idea here is that the completion routines need
;    to have some context (the data block where we store
;    all our variables) when they run.  So what we do
;    here in front of the io block, and push it onto the
;    stack.  This allows the Pascal code to take it in
;    as a parameter and then do a nice big WITH.  The
;    effect is that all data is stored off A4 (setup by
;    the with) instead of A5 (bad carma is used from
;    within a completion routine.
;
;    Oh yes, we also do the usual register store/reload
;    stuff here so we don't step on interrupted code.
;
    BLANKS        ON
    INCLUDE        '::AIncludes:SysEqu.a'
    IMPORT        INCOMING
;---------------------------------------------------------
XINCOMING PROC        EXPORT    ; Glue for INCOMING procedure

    MOVEM.L        D3-D7/A2-A6,-(A7) ; save them registers
    MOVE.L        -4(A0),D0          ; get our block pointer
    MOVE.L        D0,-(A7)          ; pass it as a parameter
    JSR            INCOMING          ; call Pascal routine
    MOVEM.L        (A7)+,A2-A6/D3-D7 ; restore the registers
    RTS
;---------------------------------------------------------
    END

This calls my Pascal routine that does the real work.  It looks something
like this:


(********************************************************)
PROCEDURE Incoming( dataBlock : DataBlockPtr);
BEGIN {Incoming}
    WITH dataBlock^ DO BEGIN

    etc......

END;


Of course you can do something very similar with C rather than Pascal
if you'd rather.

This is all written in MPW Pascal and Assembler and you can get a
more thorough explaination in Programming with AppleTalk from Addison-Wesley
ISBN: 0-201-57780-1 57780

- --  Michael Peirce      --   [e-mail]
- --  Peirce Software     --   Suite 301, 719 Hibiscus Place
- --                      --   San Jose, California USA 95117
- --  Makers of...        --   voice: [phone] fax: [phone]
- --            SMOOTHIE  --   AppleLink: peirce & America Online: AFC Peirce

---------------------------

From: [e-mail] (Bill Hofmann)
Subject: Catching phys ATalk connection
Organization: Whole Earth 'Lectronic Link
Date: Tue, 14 Jul 1992 16:27:10 GMT

OK, here's a question for y'all:  I want to notice when a user plugs in their
appletalk cable, in particular when they're connected to a zone.  There
doesn't appear to be an AppleTalk transition event for this happening.  The
only thing that comes to my mind is every so often polling for GetMyZone.
If you're not connected, you'll fail immediately, and if you're connected,
you'll get a zone back quick, except for the first transition in either
direction, which seems to take a couple of seconds.  Is this the only way?

- -Bill Hofmann

+++++++++++++++++++++++++++

From: [e-mail] (JohnC)
Date: 14 Jul 92 17:38:47 GMT
Organization: The Royal Society for Putting Things on Top of Other Things

In article <[e-mail]> [e-mail] (Bill Hofmann) writes:
>OK, here's a question for y'all:  I want to notice when a user plugs in their
>appletalk cable.

Yeep!  I don't think that's really safe to do without restarting, in order
to obtain an unused node address, etc.  I believe that the Network control
panel does a "soft reboot" of Appletalk when you change connections, but I
don't think there's any other way.

- --
John Cavallino                  |  EMail: [e-mail]
University of Chicago Hospitals |         [e-mail]
Office of Facilities Management | USMail: 5841 S. Maryland Ave, MC 0953
B0 f++ c+ g+ k s++ e+ h- pv     |         Chicago, IL  60637

---------------------------

End of C.S.M.P. Digest
**********************