TweetFollow Us on Twitter

Aug 90 Letters
Volume Number:6
Issue Number:8
Column Tag:Letters

Rotate Bug Discovered

By Kirk Chase, Editor, MacTutor

Tool Window Manager

Jean-Philippe Mariani

Grabels, France

I send you this letter for a special purpose. Indeed, in the 1988 December issue (Vol. 4, No. 12) was published the article concerning the “Tool Window Manager” by Thomas Fruin. This article was very good. but more interesting was the letter from the same Thomas Fruin in the 1989 April issue where he mentioned that he had written a MPW Pascal Unit of the “Tool Window Manager”. He said at the end of his letter that he would send this version to MacTutor in order that subscribers of MacTutor interested by it be able to get it directly from you. So, I’m inquiring if you have received this Pascal version of the “Tool Window Manager”.

Before ending, I would like to tell that you at MacTutor are doing a great job for the programmer’s community, and I’m really satisfied to have joined the MacTutor community last year. As I can’t completely devote to programming because of my studies, your magazine and your source code disks are of a great help to me. They allow me to study Macintosh programming while pursuing studies in business.

[The MPW Pascal unit for the Tool Window Manager has not been received here at MacTutor. Thomas, if you’re reading this, please send it in! People have been asking for it over and over. When it does come in, I will post a notice in the Letters column.-ed]

Detecting MultiFinder

Christopher R. Wysocki

Brookfield Center, CT

I found Paul Davis’ article “Detecting MultiFinder” in the March issue to be interesting, but it left me wondering why he went to so much trouble to determine if MultiFinder is running. For this I’ve always relied on the existence of the _OSDispatch trap; i.e.:

/* 1 */

#define _OSDispatch 0xA88F
#define _Unimplemented 0xA89F

Boolean MultiFinderIsUp()
{
 return (NGetTrapAddress(_OSDispatch, ToolTrap) != GetTrapAddress(_Unimplemented));
}

This was taken almost verbatim from the Programmer’s Guide to MultiFinder. Normally you’d use this routine to check for the existence for the existence of the temporary memory allocation calls, but since they’re available only with MultiFinder, it essentially tells you if MultiFinder is running or not. I’m using this method in my current Mac project, and it seems to work just fine.

While I’m at it, let me extend my thanks to you for a superb magazine. I’ve been reading MacTutor for about two years now, and I’ve become a much more knowledgeable Mac programmer as a result. Back issues of MacTutor have become an indispensable part of my programming library. Merci beaucoup.

Macintosh Summit Conference

University of California

Santa Barbara

The First Annual Macintosh Summit Conference is being held at the University of California, Santa Barbara on August 22 to 24. The host is Mac guru, Guy Kawasaki. The conference will have sessions on graphics, printing, System 7.0 and so on. The cost is $680.30 for the conference. You may obtain more information by calling (805) 893-4952.

OOPSLA/ECOOP ’90

Ottawa, Ontario, Canada

The fifth Object-Oriented Programming Systems, Languages, and Applications Conference is scheduled for October 21-25 in Ottawa, Canada. Joining them will be the European Conference on Object-Oriented Programming. For further information about the conference, contact Karen Offermann at (609) 764-0100.

Rotate Update

Bryce L. Fowler

Palo Alto, CA

For some time now I’ve been using the assembly procedure “Rotate,” published in MacTutor Vol. 4, No. 2 and the enhanced in Vol. 4, No. 11, to display rotated text in my own programs. Recently, using the latest versions of MPW and MacApp, Rotate started bombing at the instruction

;2

movea.l currentWord-localVars(a0), a2

With the aid of Steve Jasik’s Debugger, I was able to track the problem down to a nonzero value in the hi-word of register d7. Stray values in the hi-word of d7 will cause problems at the instruction “sub.l d7, currentWord-localVars(a0)” (or in the Vol. 4, No. 11 version at all the “sub.l d7, a2” instructions in the unwrapped loop).

The fix is simple. In either version of Rotate, add the line

;3

clr.l d7

just before the register is first used, i.e., place the instruction before the lines

;4

move.w  bounds+bottom(a1), d7
sub.w   bounds+top(a1), d7
move.w  d7, d0

Mouse track & field comment

Rodney K. Magnuson

MindVision Software

Lincoln, NE

I would like to comment on the Mouse Track and Field article. I thought it was great to finally see a replacement for Text Edit in one of your articles. As a programmer, there are times when you wish you did not have to use Text Edit, but feel that the job does not justify writing a replacement yourself. My excitement was stifled when I read that the code was copyrighted and could not be used freely in commercial programs. I ask you, what was the use of publishing the article? Perhaps the author is thinking of going back to school to become a lawyer and is going to wait an undetermined amount of time before he starts looking for code that may resemble his text editing routines. Ok...that was a little harsh and most likely not true, but I hope you get my point.

I would also like to comment on the dialog articles of the April issue. The ideas expressed in the articles were very good. I would also like to add a notion. Dialogs that contains variable sized text boxes should resize themselves according to the amount of text they are displaying. Since most applications do not include these features, I have written an INIT that adds all of these features and more to every dialog. The INIT is called ModalKeys and will be available soon in an INIT package called PowerPack. ModalKeys also allows users to hit a Hot Key that will toggle the titles of all of the buttons of a dialog to their command keys. This features is also included in our HyperCard/SuperCard report generator: Elaborate! I do not know of any other utilities/applications that do this.

Keep up the good work.

[Rodney, you are perfectly able to use the code found in any article of MacTutor. Copyright notices must be kept and credit of the source found somewhere in your application, such as the About box. Martin does want a copy of any commercial application using his code treating him like he bought it.-ed]

Menu Shortcuts

Sean Nolan

Sommerville, MA

Here’s a little trick which I’ve found has helped with menu command keys. It solves several problems:

1. On some international keyboards, command-period doesn’t work since the shift key is required in order to type a period. The shift key is usually ignored if the command key is down. This also prevents you from using command-plus as a menu shortcut (it is so natural to have command-plus and command-minus for two related commands). TechNote #263 describes this problem.

2. You can’t have keyboard equivalents for menu items which have small icons in them (see TechNote #253).

3. Any other command keys for things that are not in menus (such as buttons or elements of a tool palette) tend to be hard-coded into programs rather than use resources. This is bad, wrong, and evil.

My solution was to create a menu which has all the additional command keys I needed. The menu is not part of the menu bar, and is not visible to the user. It is installed the same way hierarchical and popup menus are:

/* 5 */

gKeyShortcutsMenu = GetMenu(KEYSHORTCUTS_ID);
InsertMenu(gKeyShortcutsMenu, -1);

The key shortcuts menu has a cancel item with the command key equivalent of command-period. If I ever produce an Italian version of my program, I will change this to command-semicolon (an unshifted period on Italian keyboards). The menu also has an ADD_ITEM with a shortcut of command-= (I also have an ADD_ITEM in another visible menu; It’s shortcut is command-+, which is , alas, never used). There are PAGE_UP (command-up arrow) and PAGE_DOWN (command-down arrow) items for paging the current window’s scrollbar. It’s easier to add it to the shortcuts menu than to test for the key code in the event loop. In addition, my shortcuts menu has items parallel all of my regular menu items which have small icons with them. The small icon’d menu items can’t have keyboard equivalents, but I’ve made it so they look like they do: the name of the menu items contain the command character plus the key shortcut character.

Finder/MultiFinder Switching

Sean Nolan

Sommerville, MA

Here’s a way to switch back and forth between Finder and MultiFinder quickly. It requires MacroMaker (or some other keyboard macro program) and ResEdit.

First, open up MacroMaker and create two macros. Start recording to make Option-Command-M (“M” for “MultiFinder”) do the following actions: select “Set Startup” in the Special menu, click on the MuliFinder radio button, click on the OK button, and then type option-command-R. Go to the MacroMaker menu and stop recording.

Make a second Finder macro invoked by option-command-F (“F” for “Finder”). Have it select “Set Startup” in the Special menu, click on the Finder radio button, click on the OK button, and then type option-command-R.

Next, make it so that option-command-R restarts the machine. It isn’t obvious, but you can have an option-character as the command key for a menu item. Open up the Finder’s Special menu using ResEdit and make option-R the command key for “Restart”. For symmetry, I also make the option-S the command key for “Shutdown”.

You now have four shortcuts from the Finder available:

option-command-R restarts your Mac

option-command-S shutsdown your Mac

option-command-F restarts your Mac in Finder

option-command-M restarts your Mac in MultiFinder

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Logic Pro X 10.1.1 - Music creation and...
Apple Logic Pro X is the most advanced version of Logic ever. Sophisticated new tools for professional songwriting, editing, and mixing are built around a modern interface that's designed to get... Read more
VLC Media Player 2.2.0 - Popular multime...
VLC Media Player is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, MP3, OGG, ...) as well as DVDs, VCDs, and various streaming protocols. It... Read more
Sound Studio 4.7.8 - Robust audio record...
Sound Studio lets you easily record and professionally edit audio on your Mac. Easily rip vinyls and digitize cassette tapes, or record lectures and voice memos. Prepare for live shows with live... Read more
LibreOffice 4.4.1.2 - Free, open-source...
LibreOffice is an office suite (word processor, spreadsheet, presentations, drawing tool) compatible with other major office suites. The Document Foundation is coordinating development and... Read more
Freeway Pro 7.0.3 - Drag-and-drop Web de...
Freeway Pro lets you build websites with speed and precision... without writing a line of code! With its user-oriented drag-and-drop interface, Freeway Pro helps you piece together the website of... Read more
Cloud 3.3.0 - File sharing from your men...
Cloud is simple file sharing for the Mac. Drag a file from your Mac to the CloudApp icon in the menubar and we take care of the rest. A link to the file will automatically be copied to your clipboard... Read more
Cyberduck 4.6.5 - FTP and SFTP browser....
Cyberduck is a robust FTP/FTP-TLS/SFTP browser for the Mac whose lack of visual clutter and cleverly intuitive features make it easy to use. Support for external editors and system technologies such... Read more
Firefox 36.0 - Fast, safe Web browser. (...
Firefox for Mac offers a fast, safe Web browsing experience. Browse quickly, securely, and effortlessly. With its industry-leading features, Firefox is the choice of Web development professionals and... Read more
Thunderbird 31.5.0 - Email client from M...
As of July 2012, Thunderbird has transitioned to a new governance model, with new features being developed by the broader free software and open source community, and security fixes and improvements... Read more
VOX 2.4 - Music player that supports man...
VoxIt just sounds better! The beauty is in its simplicity, yet behind the minimal exterior lies a powerful music player with a ton of features & support for all audio formats you should ever need... Read more

Get The Whole Story – Lone Wolf Complete...
Get The Whole Story – Lone Wolf Complete is Now Available and On Sale Posted by Jessica Fisher on February 27th, 2015 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Who Wore it Best? The Counting Dead vs....
Like it or not, the “clicker” genre, popularized by cute distractions like Candy Box and Cookie Clicker, seems like it’s here to stay. So Who Wore it Best? takes a look at two recent examples: The Counting Dead and AdVenture Capitalist. | Read more »
Card Crawl, the Mini Deck Building Game,...
Card Crawl, the Mini Deck Building Game, is Coming Soon Posted by Jessica Fisher on February 27th, 2015 [ permalink ] Tinytouchtales and Mexer have announced their new game, | Read more »
Witness an all new puzzle mechanic in Bl...
Well, BlastBall MAX is not one of those games and is bucking trends such as timers, elements of randomness, and tacked-on mechanics in favor of pure puzzle gameplay. When you first boot up the game you’ll see a grid made up of squares that are each... | Read more »
This Princess Has a Dragon and She isn’t...
This Princess Has a Dragon and She isn’t Afraid to Useit. | Read more »
Mecha Showdown Review
Mecha Showdown Review By Lee Hamlet on February 27th, 2015 Our Rating: :: IN A SPINUniversal App - Designed for iPhone and iPad Mecha Showdown replaces traditional buttons with a slot machine mechanic in this robot fighting game,... | Read more »
Reliance Games and Dreamworks Unveil Rea...
Reliance Games and Dreamworks Unveil Real Steel Champions Posted by Ellis Spice on February 27th, 2015 [ permalink ] Reliance Games and Dreamworks have announced that a third game in | Read more »
Sum Idea Review
Sum Idea Review By Jennifer Allen on February 27th, 2015 Our Rating: :: TAXING NUMBERSUniversal App - Designed for iPhone and iPad Sum Idea is a fairly charming but taxing puzzle game.   | Read more »
A New Badland Update Brings Daydream Lev...
A New Badland Update Brings Daydream Levels to Co-Op Posted by Ellis Spice on February 27th, 2015 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Slashing Demons Review
Slashing Demons Review By Lee Hamlet on February 27th, 2015 Our Rating: :: IT'S A LONG WAY TO THE TOPUniversal App - Designed for iPhone and iPad Slashing Demons lacks the depth or scope to take it beyond the point of being just... | Read more »

Price Scanner via MacPrices.net

Apple CEO Tim Cook to Deliver 2015 George Was...
Apple CEO Tim Cook will deliver the George Washington University’s Commencement address to GWU grads on May 17, at which time he will also be awarded an honorary doctorate of public service from the... Read more
Apple restocks refurbished Mac minis for up t...
The Apple Store has restocked Apple Certified Refurbished 2014 Mac minis, with models available starting at $419. Apple’s one-year warranty is included with each mini, and shipping is free: - 1.4GHz... Read more
Save up to $50 on iPad Air 2s, NY tax only, f...
 B&H Photo has iPad Air 2s on sale for $50 off MSRP including free shipping plus NY sales tax only: - 16GB iPad Air 2 WiFi: $469.99 $30 off - 64GB iPad Air 2 WiFi: $549 $50 off - 128GB iPad Air 2... Read more
16GB iPad Air 2 on sale for $447, save $52
Walmart has the 16GB iPad Air 2 WiFi on sale for $446.99 on their online store for a limited time. Choose free shipping or free local store pickup (if available). Sale price for online orders only,... Read more
iMacs on sale for up to $205 off MSRP
B&H Photo has 21″ and 27″ iMacs on sale for up to $205 off MSRP including free shipping plus NY sales tax only: - 21″ 1.4GHz iMac: $1029 $70 off - 21″ 2.7GHz iMac: $1199 $100 off - 21″ 2.9GHz... Read more
Apple Takes 89 Percent Share of Global Smartp...
According to the latest research from Strategy Analytics, global smartphone operating profit reached US$21 billion in Q4 2014. The Android operating system captured a record-low 11 percent global... Read more
New Travel Health App “My Travel Health” iOS...
Rochester, Minnesota based Travel Health and Wellness LLC has announced that its new iOS app help safeguard the user’s health when traveling abroad — “My Travel Health” is now available on the Apple... Read more
Sale! MacBook Airs for up to $115 off MSRP
B&H Photo has MacBook Airs on sale for up to $100 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 11″ 128GB MacBook Air: $799 100 off MSRP - 11″ 256GB MacBook Air: $999 $100... Read more
15-inch 2.0GHz Retina MacBook Pro (refurbishe...
The Apple Store has Apple Certified Refurbished previous-generation 15″ 2.0GHz Retina MacBook Pros available for $1489 including free shipping plus Apple’s standard one-year warranty. Their price is... Read more
Wither The iPad mini? End Of The Road Imminen...
AppleDailyReport’s Dennis Sellers predicts that the iPad mini is going to be left to wither on the vine, as it were, and then just allowed to fade away — a casualty of the IPhone 6 Plus and other... Read more

Jobs Board

Sr. Technical Services Consultant, *Apple*...
**Job Summary** Apple Professional Services (APS) has an opening for a senior technical position that contributes to Apple 's efforts for strategic and transactional Read more
Event Director, *Apple* Retail Marketing -...
…This senior level position is responsible for leading and imagining the Apple Retail Team's global engagement strategy and team. Delivering an overarching brand Read more
*Apple* Pay - Site Reliability Engineer - Ap...
**Job Summary** Imagine what you could do here. At Apple , great ideas have a way of becoming great products, services, and customer experiences very quickly. Bring Read more
*Apple* Solutions Consultant - Retail Sales...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
*Apple* Solutions Consultant - Retail Sales...
**Job Summary** As an Apple Solutions Consultant (ASC) you are the link between our customers and our products. Your role is to drive the Apple business in a retail Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.