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

Coda 2.5.11 - One-window Web development...
Coda is a powerful Web editor that puts everything in one place. An editor. Terminal. CSS. Files. With Coda 2, we went beyond expectations. With loads of new, much-requested features, a few surprises... Read more
Bookends 12.5.7 - Reference management a...
Bookends is a full-featured bibliography/reference and information-management system for students and professionals. Access the power of Bookends directly from Mellel, Nisus Writer Pro, or MS Word (... Read more
Maya 2016 - Professional 3D modeling and...
Maya is an award-winning software and powerful, integrated 3D modeling, animation, visual effects, and rendering solution. Because Maya is based on an open architecture, all your work can be scripted... Read more
RapidWeaver 6.2.3 - Create template-base...
RapidWeaver is a next-generation Web design application to help you easily create professional-looking Web sites in minutes. No knowledge of complex code is required, RapidWeaver will take care of... Read more
MacFamilyTree 7.5.2 - Create and explore...
MacFamilyTree gives genealogy a facelift: it's modern, interactive, incredibly fast, and easy to use. We're convinced that generations of chroniclers would have loved to trade in their genealogy... Read more
Paragraphs 1.0.1 - Writing tool just for...
Paragraphs is an app just for writers. It was built for one thing and one thing only: writing. It gives you everything you need to create brilliant prose and does away with the rest. Everything in... Read more
BlueStacks App Player 0.9.21 - Run Andro...
BlueStacks App Player lets you run your Android apps fast and fullscreen on your Mac. Version 0.9.21: Note: Now requires OS X 10.8 or later running on a 64-bit Intel processor. Initial stable... Read more
Tweetbot 2.0.2 - Popular Twitter client....
Tweetbot is a full-featured OS X Twitter client with a lot of personality. Whether it's the meticulously-crafted interface, sounds and animation, or features like multiple timelines and column views... Read more
Apple iBooks Author 2.3 - Create and pub...
Apple iBooks Author helps you create and publish amazing Multi-Touch books for iPad. Now anyone can create stunning iBooks textbooks, cookbooks, history books, picture books, and more for iPad. All... Read more
NeoOffice 2014.12 - Mac-tailored, OpenOf...
NeoOffice is a complete office suite for OS X. With NeoOffice, users can view, edit, and save OpenOffice documents, PDF files, and most Microsoft Word, Excel, and PowerPoint documents. NeoOffice 3.x... Read more

Rage of Bahamut is Giving Almost All of...
The App Store isn't what it used to be back in 2012, so it's not unexpected to see some games changing their structures with the times. Now we can add Rage of Bahamut to that list with the recent announcement that the game is severely cutting back... | Read more »
Adventures of Pip (Games)
Adventures of Pip 1.0 Device: iOS iPhone Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: ** ONE WEEK ONLY — 66% OFF! *** “Adventures of Pip is a delightful little platformer full of charm, challenge and impeccable... | Read more »
Divide By Sheep - Tips, Tricks, and Stre...
Who would have thought splitting up sheep could be so involved? Anyone who’s played Divide by Sheep, that’s who! While we’re not about to give you complete solutions to everything (because that’s just cheating), we will happily give you some... | Read more »
NaturalMotion and Zynga Have Started Tea...
An official sequel to 2012's CSR Racing is officially on the way, with Zynga and NaturalMotion releasing a short teaser trailer to get everyone excited. Well, as excited as one can get from a trailer with no gameplay footage, anyway. [Read more] | Read more »
Grab a Friend and Pick up Overkill 3, Be...
Overkill 3 is a pretty enjoyable third-person shooter that was sort of begging for some online multiplayer. Fortunately the begging can stop, because its newest update has added an online co-op mode. [Read more] | Read more »
Scanner Pro's Newest Update Adds Au...
Scanner Pro is one of the most popular document scanning apps on iOS, thanks in no small part to its near-constant updates, I'm sure. Now we're up to update number six, and it adds some pretty handy new features. [Read more] | Read more »
Heroki (Games)
Heroki 1.0 Device: iOS Universal Category: Games Price: $7.99, Version: 1.0 (iTunes) Description: CLEAR THE SKIES FOR A NEW HERO!The peaceful sky village of Levantia is in danger! The dastardly Dr. N. Forchin and his accomplice,... | Read more »
Wars of the Roses (Games)
Wars of the Roses 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: | Read more »
TapMon Battle (Games)
TapMon Battle 1.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0 (iTunes) Description: It's time to battle!Tap! Tap! Tap! Try tap a egg to hatch a Tapmon!Do a battle with another tapmons using your hatched tapmons! *... | Read more »
Alchemic Dungeons (Games)
Alchemic Dungeons 1.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0 (iTunes) Description: ### Release Event! ### 2.99$->0.99$ for limited time! ### Roguelike Role Playing Game! ### Alchemic Dungeons is roguelike... | Read more »

Price Scanner via MacPrices.net

Canon PIXMA MG3620 Wireless Inkjet All-in-One...
Canon U.S.A., Inc. has announced the PIXMA MG3620 Wireless (1) Inkjet All-in-One (AIO) printer for high-quality photo and document printing. Built with convenience in mind for the everyday home user... Read more
July 4th Holiday Weekend 13-inch MacBook Pro...
Save up to $150 on the purchase of a new 2015 13″ Retina MacBook Pro at the following resellers this weekend. Shipping is free with each model: 2.7GHz/128GB MSRP $1299 2.7GHz/... Read more
27-inch 3.5GHz 5K iMac on sale for $2149, sav...
Best Buy has the 27″ 3.5GHz 5K iMac on sale for $2149.99. Choose free shipping or free local store pickup (if available). Sale price for online orders only, in-store prices may vary. Their price is $... Read more
Apple now offering refurbished 2015 11-inch...
The Apple Store is now offering Apple Certified Refurbished 2015 11″ MacBook Airs as well as 13″ MacBook Airs (the latest models), available for up to $180 off the cost of new models. An Apple one-... Read more
15-inch 2.5GHz Retina MacBook Pro on sale for...
Amazon.com has the 15″ 2.5GHz Retina MacBook Pro on sale for $2274 including free shipping. Their price is $225 off MSRP, and it’s the lowest price available for this model. Read more
Finally Safe To Upgrade To Yosemite’?
The reason I’ve held back from upgrading my MacBook Air from OS X 10.9 Mavericks to 10.10 Yosemite for nearly a year isn’t just procrastination. Among other bugs reported, there have been persistent... Read more
Logo Pop Free Vector Logo Design App For OS X...
128bit Technologies has released of Logo Pop Free 1.2 for Mac OS X, a vector based, full-fledged, logo design app available exclusively on the Mac App Store for the agreeable price of absolutely free... Read more
21-inch 1.4GHz iMac on sale for $999, save $1...
B&H Photo has new 21″ 1.4GHz iMac on sale for $999 including free shipping plus NY sales tax only. Their price is $100 off MSRP. Best Buy has the 21″ 1.4GHz iMac on sale for $999.99 on their... Read more
16GB iPad mini 3 on sale for $339, save $60
B&H Photo has the 16GB iPad mini 3 WiFi on sale for $339 including free shipping plus NY tax only. Their price is $60 off MSRP. Read more
Save up to $40 on iPad Air 2, NY tax only, fr...
B&H Photo has iPad Air 2s on sale for up to $40 off MSRP including free shipping plus NY sales tax only: - 16GB iPad Air 2 WiFi: $489 $10 off - 64GB iPad Air 2 WiFi: $559 $40 off - 128GB iPad Air... Read more

Jobs Board

Global Deployment Project Manager, *Apple*...
…international landscape is paramount to drive innovation, compliance, competition of Apple 's strengths, and talent planning. Manages the process, logistics, and systems Read more
*Apple* MAC Support Services Subject Matter...
Title: Apple MAC Support Services Subject Matter Expert Location: Pleasanton, CA Type of position: Temporary Contract for approximately 6 weeks Tasks The tasks for the Read more
*Apple* MAC Support Administrator - Net2Sour...
…solutions customized to client needs including staffing, training and technology Title Apple MAC Support Administrator Location Belmont, CA Duration 6+ Month Job Read more
*Apple* Certified Mac Technician - Updated 6...
…and friendly, hands-on technical support to customers troubleshooting and repairing Apple /Mac products with courtesy, speed and skill. Use your problem-solving skills Read more
*Apple* MAC Support Services Subject Matter...
…the best talent to create a competitive advantage. Currently, we are seeking an Apple MAC Support Services Subject Matter Expert for a long term contract in Pleasanton, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.