Moderators.Jon.Pugh;Dwayne.Virnau;Lance.Nakata@SUMEX-AIM.STANFORD.EDU (05/01/88)
INFO-MAC Digest Sunday, 1 May 1988 Volume 6 : Issue 44
Today's Topics:
MPW&LSC Program examples
RE: Getting Full Pathames
Calling Hypercard Hooks from Pascal
query
Re: Power supply problems.
Hello there
RE: Postscript from quickdraw
DRAWIMP
Flex, good but too speedy
Fast number crunching.
Help with Relax MacMate 20 wanted
Downloading files
----------------------------------------------------------------------
Date: Sun, 24 Apr 88 11:29:10 LCL
From: "Tony S. Dahbura" <DAHBURA%SUVM.BITNET@forsythe.stanford.edu>
Does anyone out there know how I can get a moving marquee selection box like
MACPAINT has. I.E. When you select something it leaves a scrolling box
around the selected area. I assume there might be a routine in the
MAC to do this instead of having to code it myself. Someone mentioned
checking Inside Macintosh book 4, but I have been unable to locate any
information on the subject. Any help would be greatly appreciated.
/thanks
/Tony Dahbura
Reply Via : DAHBURA@SUVM (BITNET)
US Mail : 262 Small Road
Syracuse, NY 13210
U.S.A.
Phone : 315-476-0989
------------------------------
Date: Tue, 26 Apr 88 00:20 CDT
From: JEFF SMITH <CS_JSMITH@uta.edu>
Subject: MPW&LSC Program examples
I made it!!!! I have finally developed my first reasonably sized C
program on the mac. I used the shell provided in the MPW C. Is there
anyone who has a PD event loop which takes care of scrolling and splitting
windows? How about some plotting routines? I have Mac Express but am not
using it. I have developed a Neural Network Simulator and its pretty fast
on my MacII. I am using it for NN based robotic control research. I'm not
a weathered mac-programmer, though and would like samples of code you have
developed to keep my efforts moving. Thanks...
Jeff Smith
University of Texas at Arlington
Bitnet:B609CSE@UTARLG
CS.NET:CS_JSMITH@UTA.EDU
------------------------------
Date: Tue, 26 Apr 88 12:24:03 PDT
From: eastman@Csa4.LBL.Gov (Jack Eastman)
Subject: RE: Getting Full Pathames
In info-mac V6 #38 Chris Sterritt asks
> I would like to know if anyone can mail me some code that does the
>following. I would like to hand the user the standard SFGetfile box, which
>I can easily do, and return to the calling function a string that has the
>entire pathname (i.e., the volume name:any intervening folders:filename).
> I can't seem to get anything more (easily) than the volume name
>and the filename. I'd like to be able to get all the intervening folders
>as a good way to store the path to the file.
> Any ideas?
First point: you gotta be careful when you ask for a string containing a full
pathname. Whereas each file or directory name is limited to 31 characters
in length, full pathnames can be of unlimited length because there's no limit
on the depth of HFS directory trees. Therefore the Pascal Str255 is a poor
choice of variable type in which to pass these things around. A better choice
is either a StringHandle, which, though formally declared to be ^^Str255,
actually points to a block of variable length containing a pascal-style (i.e.
length-byte-prefixed) string; or a handle to a C-style null-terminated string,
where you keep track of the end and stuff the null in yourself when appropriate.
In order to construct a full pathname, you have to use (brrrrrr) low-level
paramBlock HFS calls. I don't have my Mac in front of me right now to test all
the steps, but here's a rough idea of one way to do it.
SFGetFile returns a record of type SFReply. This record was fixed in length
back before HFS was invented, so although it has room for a volume reference
number and a file name, it doesn't have room to pass the dirID of the
directory containing the file. Standard file instead uses the vRefNum slot
to return a working directory ID, which refers to a system-wide pool of
working directory records containing both volume and directory information.
Now, I know that the file manager calls accept working directory id's almost
anywhere they ask for a vRefNum, but I prefer to keep things pure and pass
dirID's where dirID's are asked for and vRefNum's where vRefNum's are asked
for. I stay less confused that way.
You can use the low-level call PBGetWDInfo to get the vRefNum and dirID
corresponding to the working directory ID returned by standard file, but
there's an easier way to get at this information. Standard file maintains
two low-memory globals between calls, and you can look there for the relevant
information. You can get the directory id of the last directory that SF opened
from the longint at the low-memory location CurDirStore ($398). The NEGATIVE
of the corresponding vRefNum is saved in the word at SFSaveDisk ($214).
Now, armed with a vRefNum and a dirID, you can reconstruct a pathname by
repeated calls to the low-level routine PBGetCatInfo.
Declare a variable of type CInfoPBRec and a Str255 to hold the directory name
that PBGetCatInfo will return:
var params:CInfoPBRec;
dirName:Str255;
Make your SFGetFile call. Then for the first HFS call fill the fields of the
paramBlock like this:
dirName:='';
with params do
begin
ioCompletion := nil; {assuming synchronous calls}
ioVRefNum := - wordIFoundInSFSaveDisk;
ifFDirIndex := -1; {anything < 0 to make the call use ioDrDirID}
ioNamePtr := @dirName; {the directory name gets returned here}
ioDrDirID := LongIFoundInCurDirStore;
end;
Make the call:
err := PBGetCatInfo( @params, false );
Upon return you'll find the name of the directory containing your file in
dirName. Prefix it to the selected filename with a colon in between, in
whatever string structure you've decided to use to keep your full pathname.
The dirID of the parent directory of the one we're in is returned in
params.ioDrParID. Now you can just call PBGetCatInfo iteratively, putting the
ioDrParID returned in each call into ioDrDirID for the next, and building up
the pathname as you go, until you get to the root. (Remember that the dirID of
the root directory on any volume is 2.)
Hope this helps you out-
Jack Eastman
Physics Division
Lawrence Berkeley Laboratory
eastman@lbl.gov
------------------------------
Date: Fri, 29 Apr 88 21:52 CST
From: THE VALEYARD =*= <CLAY@NTSUVAX>
Subject: Calling Hypercard Hooks from Pascal
Hello MacUsers:
I am attempting to write a hypercard stack that uses an XCMD written with
LS Pascal. The XCMD will sort data in a Hypercard Field. However, I cannot
find any documentation on how to hook the XCMD into Hypercard for a case
similar to this since the XCMD actually modifies the stack data.
I have Goodman's Hypercard book.
Can anyone help with this problem or direct me to a pubs that would help?
Thanks!
The Valeyard
Clay Luther
clay@ntsuvax
------------------------------
Date: Wed, 27 Apr 88 11:12 N
From: <KRAALING%HWALHW50.BITNET@forsythe.stanford.edu>
Subject: query
Could someone report the status of MPW-FORTRAN. I am relatively new to
the Mac scene and I want to run FORTRAN applications on a Mac II.
Specific questions are: 1) is it already for sale, 2) true 77, 3)
language extensions, 4) symbolic debugger, 5) 68881 support, 6) dynamic
linking, 7) integrated programming environment, 8) run time errors, 9)
interface to quickdraw routines.
Any information is highly appreciated,
Daniel van Kraalingen
(bitnet: KRAALINGEN@HWALHW50)
Dept. of Theoretical Production Ecology
Agricultural University,
Wageningen
------------------------------
Date: Mon, 25 Apr 88 16:29 PDT
From: Danger Mouse <DM%MAX.ACS.WASHINGTON.EDU@forsythe.stanford.edu>
Subject: Re: Power supply problems.
To the person having problems with their screen, and was wanting an alternative
to spending $150 for a new power supply.
Get your hands on the July '87 issue of MacTutor, (either July or August, I'm
pretty sure it's July), and look in the section of reprinted posts from Rusty
Hodge's MouseHole BBS. What you may have is a cold solder that's screwing things
up, and if the symptoms are the same and you have the electrical savvy, you may
well be able to get your problem fixed for a fraction of the $150. (Or you could
direct a technician to follow the instructions -- either way.)
I read that issue right after having had a power supply swap done. I kicked
myself all the way home.
-- Danger Mouse
------------------------------
Date: Sun 24 Apr 88 15:33:08-PDT
From: MANSFIELD%SPRLC.SPAN@STAR.STANFORD.EDU (Used furniture dealer
From: and
Subject: Hello there
Is this the correct address for submitting stuff for the mac digests and for archiving on sumex?
I have a couple of questions to ask of the net and I'm not connected to the usenet
news as I am on a VMS machine (my Sun hasnt arrived yet!)
I need to know if:
a. anyone has a ray traing program for the mac.
b. whether anyone has found an init or other method of putting the menubar on one screen and the disk and trash icons on another with multiple monio
sorry monitors on the Mac II. Sure I can drag them there but it would be nice to have them come up thsorry that way
excuse the messy message the emulator is playing up.
c. has anyone tried the MPW Forran?
I also want to return a fun icon that I downloaded and modified to work with the new systems. Am I writing to the right address?
Cheers Jfm.
------------------------------
Date: Mon, 25 Apr 1988 12:11 PDT
From: SHIPLEY <SPHERE%UWACDC.ACS.WASHINGTON.EDU@forsythe.stanford.edu>
Subject: RE: Postscript from quickdraw
If you have a Pict file, the easiest way to make PostScript from it would
be to paste it into a blank document of any commercial drawing program, and
then select print to laserwriter, and use wiggle-K to print the postscript
to disk.
-William Shipley
------------------------------
Date: Wed, 27 Apr 88 08:52:04 PST
From: Peter Scott <PJS@grouch.JPL.NASA.GOV>
Subject: DRAWIMP
I have a program called DRAWIMP, written by Alan Weber of USC, which
converts MacDraw files to imPRESS code and uses TeX fonts. Unfortunately,
it only works with PXL font files, which have been superseded by more
efficient GF and PK formats. Has anyone got a version of this program
that supports these font formats? Please reply directly - I'm not on
this list.
Peter Scott (pjs%grouch@jpl-mil.jpl.nasa.gov)
------------------------------
Date: Wed, 27 Apr 88 16:38 EST
From: <BELSLEY%BCVMS.BITNET@forsythe.stanford.edu> (DAVID A. BELSLEY)
Subject: Flex, good but too speedy
I just downloaded the Flex INIT/cdev and like it in all respects but its
speed; it moves too fast. Ben, can you slow it down so that it runs at
a stately pace on the Mac II? If there is a machine-dependency problem,
perhaps you could include a speed control in the cdev?
thanks for a nice product,
david a. belsley
boston college belsley@bcvax3.bitnet
------------------------------
Date: Fri, 29 Apr 88 18:59:48 IST
From: Ami Zakai <RPR1ZAK%TECHNION.BITNET@forsythe.stanford.edu>
Subject: Fast number crunching.
The decision has been made in my institute to purchase a few machines
dedicated to number crunching, we are considering Mac SE/II with accelerator
boards/cards or array processors.
I am interested in any information, addresses or personal experience with
such machines and how it compares to other options in computing power/price.
Please address all info to me and I will summarize or send to this new group
with a copy to me.
thanks
Dr. Ami Zakai LifeSci project, Telecommunication.
Rappaport Institute for Medical Research,
P.O.B. 9697, Haifa 31096 ISRAEL
Phone -972-4-512265
Fax -972-4-521296 attn Zakai
Email RPR1ZAK@TECHNION.BITNET
RPR1ZAK@TECHNION.TECH.AC.IL
RPR1ZAK%TECHNION.BITNET@CUNYVM.CUNY.EDU
------------------------------
Date: 30 APR 88 03:44-N
From: CZYCHI%CSGHSG52.BITNET@CUNYVM.CUNY.EDU
Subject: Help with Relax MacMate 20 wanted
Hello,
I have medium size problem with my Relax MacMate 20 Harddisk. - It is the one
which makes twice as noise as my old SE itself...
Somebody threw the original installation and utilities SW away, and Apple's
HD Setup won't work anymore (it worked before!). Suddenly it stuck while
formatting the drive. It is a Seagate ST-225N.
So I am asking you out there if you could probably help me. The best thing what
could happen to me were if somebody could kindly send me the original Relax
SW. But please do send me a note if you have any idea.
Thanks a lot.
Gary
Gary T. Czychi University of St.Gallen, Switzerland
CZYCHI@CSGHSG52.BITNET (also: CSGHSG53)
Tel.: --41 / 71 / 27 52 68
--49 / 211 / 46 01 23
------------------------------
Date: Sun, 24 Apr 88 17:18:40 PDT
From: <GA0095%SIUCVMB.BITNET@forsythe.stanford.edu>
Date: 24 April 1988, 19:05:49 CST
From: Robert J. Brenstein (618) 453-5721 x 227 GA0095 at SIUCVMB
To: INFO-MAC%SUMEX-AIM.STANFORD.EDU at STANFORD
Re: unpacking multi-part stacks
Joe
I have been frequently downloading stacks and Macintosh programs coming
in a few parts from MacServe. I found that it is the best to pre-process
them on your IBM mainframe or VAX or whatever you use to communicate over
BITNet. Univ of Toledo is listed to use IBM/CMS. If that is correct, use
Xedit and/or COPY command to combine all parts into one large file and
then download it to your Macintosh. This way you will have a single HQX
file to deal with on Macintosh and no problems with APPENDing etc. Make
sure to remove mail headers if they are present in other parts than the
first one (usually they ain't there but it is worth checking).
Robert <GA0095@SIUCVMB.BITNET>
------------------------------
Date: Mon, 25 Apr 88 09:02:47 CDT
From: "James N.Bradley" <ACSH%UHUPVM1.BITNET@forsythe.stanford.edu>
Subject: Downloading files
Joe Feustle commented that he had a problem appending multiple sections
of a file he downloaded from PUCC.
I normally receive mail in CMS and if I get a multipart file, I use the
GET command and combine it before I download it. It takes a little longer
to KERMIT them down, but I get a file that's already in one piece.
JNB
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End of INFO-MAC Digest
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