TweetFollow Us on Twitter

System 7.0 Sneaks

System 7.0 Sneaks

For those who missed the Q & A session on System 7.0 at the May 1990 Apple Worldwide Developers' Conference, here's a sampling of what went on.

QIt would be nice to have Apple Events that could get a list of valid Apple Events from an application. Is that going to be available?

A There are Apple Events to do that kind of thing already, and if you discussed the issue on AppleLink ® you'd find that out right away.That's a hint. Get it?--ED.

QCan I drop Control Panel device files into the Apple menu folder and launch them directly from the Apple menu?

A The short answer is yes. The more complete answer is this: Anything you could double-click from the FinderTM can be dropped into the Apple menu folder and launched from the Apple menu.

QMy corporation has billions and billions of zones. We need a larger zone-name selection area in the Chooser. A list with the first few characters isn't good enough. Can this be fixed?

A This is one of those things that used to be "an important future direction," so we did something about it. And now it's fixed in System 7.0.

QIn many cases, you have the same application in different versions with the same creator. It would be nice if you could double-click a document and consistently turn on the oldest version, or the latest version, instead of just the one you last copied. Is this possible?

A Not only is that possible, but--except for what looks like a small bug--it's already implemented and in the version of System 7.0 you have.

QYou said earlier that a driver would lock down a completion routine. I just wondered how a piece of software could lock down code that's of unknown extent and possibly discontiguous.

A You must have misunderstood. The Device Manager takes care of holding down the parameter block and also takes care of not calling the completion routine until paging is safe, so the completion routine itself doesn't have to be held down. Neither does any of the data it touches. The driver doesn't have to do anything. It's all handled by the Device Manager.QBut how does the Device Manager know that the completion routine is going to be around?

A It doesn't. The Device Manager defers calling the completion routine until paging is safe.

QWhat limit is there, if any, on the number of published and subscribed items allowed for an application?

A For a particular document, the maximum number is the maximum number of open files available, and, for an application, the maximum is limited by disk space.

QAre there changes or do you have plans for changes to the way applications are allocated memory under the omnipresent MultiFinder ®? For instance, is there a way to dynamically grow their memory? I find that I have sort of a "normal" size for an application. And then, once in a while, I switch to Finder to give the application the entire memory.

A If you're developing an application, you can use temporary memory and eliminate most of the need to do this. We're certainly investigating models that won't require the somewhat stilted setting of partition size that we have today.

QDear Miss Manners: Will the operating system have the capability of launching a hidden application? An example is when you want to have one application launch another, send it some high-level events to potentially select some text, copy to the Clipboard, and then quit the application, without having the application show up and do all that in front of the user.

A At first glance, this looks like an application-level thing, and a product could be designed this way. We're not planning to support this type of thing directly in the OS.

QWould it be feasible to keep Help resources in a separate file? If opened from within the application, these resources should appear in the regular Resource Search Path.

A That's absolutely right. If you keep the file open and in the path when you call the Help Manager, you can keep the Help in a separate file. QIs there a lot of authentication for high-level events, or should applications that need password protection implement the events themselves through the PPC toolbox in high-level events?

A We have authentication built into all the interapplication communication stuff, through the Users and Groups portion of the Control Panel.

QThis one's addressed to the Macintosh gods and goddesses. Using high-level events, is there a mechanism for bringing a background application to the front? If not, is there any way for the application to bring itself to the front?

A The simple answer is, the Process Manager now has calls for doing this. In terms of user interface, though, it's probably a very bad idea to spring an application on the user from the background. He or she could be initializing a disk, or something!

QWhat is the Apple definition of 32-bit clean?

A This is one of our favorite questions. What 32-bit clean refers to is an application that doesn't contain anything to prevent it from running on a system with a 32-bit memory manager. The application can't contain any code that relies specifically on 24-bit stuff. Examples are masking the high bit, treating addresses as signed addresses, or using some specific old calls in low-memory globals whose accessibility is intrinsically limited to 24-bit addressing. The idea is explained in a lot of detail in Technical Note #212, so that's the Apple definition of32-bit clean: Tech Note #212.

QWill System 7.0 run on a Macintosh 512K enhanced ("512Ke") with third-party memory, a SCSI upgrade, and 2 MB of memory?

A We hope so! There are thousands of us who have those! And our plan is that it'll work on those configurations. There's nothing we're doing to prevent that.

QCan a Macintosh boot off the network?

A Current Macintosh computers don't support network booting (that is, booting off a file server), mostly because the ROM code doesn't know to look out on the network for boot devices. In the future, you'll see network-bootable Macintoshes, though. It's going to take a little bit of time, but you'll see those.

QCan a user lock out his or her disk from network access, high-level events, and so on, for a set time (during data acquisition, for example)?

A There is a user interface to turn off all Apple Events, but not for a set time. You turn it on and off in the network setup Control Panel. And there's a programmatic interface to shut down file sharing if it's currently running.

QIs FileShare simply a personal AppleShare ® server? Could you please compare and contrast the capabilities of AppleShare and FileShare?

A The guts of FileShare is really a personal server. FileShare provides all the same call support as any AppleShare server, so the inner workings are the same. However, a lot of the tuning, a lot of the performance, and a lot of the upper limits have been lowered. FileShare is intended only for two or three people. It's much simpler, and provides more personal services, than the big, full-blown dedicated server.

QIf System 7.0 has a real font size and width--for example, if the width of the letter is 8.5 pixels--is the width rounded to 8?

A Font sizing is the same as before System 7.0. It's affected by the Set Fract Enable call in the Font Manager, and there's also a fractional pen position in color QuickDraw, so that the rounding works properly over multiple characters, rather than over a single character. This hasn't changed.

QIs the Database Access Manager intended to provide a vendor-independent interface for database packages?

A The Database Access Manager is really intended to provide a vendor-independent interface to data. You could use it to talk to Macintosh databases, or whatever.

QWhatever happened to the Foreign File System Manager? Last year, we talked about being able to use ProDOS and MS-DOS volumes on the desktop.

A The unfortunate answer is that the Foreign File System Manager didn't make our schedule for System 7.0, but we're working on it for a subsequent release.


A ll information is provided "AS IS"and without any warranty, express, implied or otherwise, regarding its accuracy or performance.

APPLE SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF REVENUE, LOSS OF PROFITS, BUSINESS INTERRUPTION, LOSS OF INFORMATION OR DATA, AND THE LIKE) ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. *

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Latest Forum Discussions

See All

Soft Drummer (Music)
Soft Drummer 1.0 Device: iOS Universal Category: Music Price: $14.99, Version: 1.0 (iTunes) Description: Soft Drummer is the closest thing to a pro session subtle drummer in your pocket. Easy to use and fast, it's much more than a... | Read more »
Is GO Gear the Pokemon GO map app you...
Now that we've settled into something of a Pokemon GO status quo, the number one desire of most players can best be summed out by modifying a quote from Rod Tidwell of Jerry Maguire: "Show me the Pokemon!" [Read more] | Read more »
Rodeo Stampede update: Mountains, new an...
The Savannah and Jungle were just the beginning in Rodeo Stampede. Get ready to head for the Mountains. I think I heard that in a beer ad once. [Read more] | Read more »
COSMOS RINGS (Games)
COSMOS RINGS 1.0.0 Device: iOS iPhone Category: Games Price: $5.99, Version: 1.0.0 (iTunes) Description: This game cannot be played without the Apple Watch.Released anniversary sale until August 31,2016 PST! A tragic tale of time's... | Read more »
How to get started selling on Mercari
As far as ecommerce has come over the last decade or so, there's still a tremendous opportunity to make it easier for people to buy and sell goods. That's especially true when it comes to shopping apps, which should only continue to increase in... | Read more »
Human Anatomy Atlas 2017 Edition - Compl...
Human Anatomy Atlas 2017 Edition - Complete 3D Human Body 1.0.24 Device: iOS iPhone Category: Medical Price: $24.99, Version: 1.0.24 (iTunes) Description: | Read more »
Heroes of Normandie (Games)
Heroes of Normandie 1.5 Device: iOS Universal Category: Games Price: $14.99, Version: 1.5 (iTunes) Description: The game does not support iPhone 4s and below | Read more »
Why you should never power up Pokemon in...
There's no question that candy is dandy in Pokemon GO. You need big quantities of it to evolve your Pokemon, and when combined with stardust, it can be used to power up your favorite pocket monsters as well, making them more formidable for the gym... | Read more »
Webzen launches 3D MMORPG MU Origin on i...
Mu Origin is featured time and time again at the very top of App Stores in China, and within the top five worldwide top-grossing charts on Google Play.Its popularity in Korea and China, featuring more than 120 registered players in China and 6... | Read more »
Severed (Games)
Severed 1.0 Device: iOS Universal Category: Games Price: $5.99, Version: 1.0 (iTunes) Description: LAUNCH DISCOUNT ON NOW!! ENDS AUGUST 4! ==== Take control of a one-armed warrior named Sasha, wielding a living sword on her journey... | Read more »

Price Scanner via MacPrices.net

Second-Quarter Tablet Shipments Fell 4.8% –...
The latest report from the global market research firm TrendForce finds that worldwide tablet shipments for this second quarter totaled 33.54 million units, representing a quarterly drop of 4.8% and... Read more
Global Smartphone Sales Volumes Mark Second S...
According to preliminary results from the International Data Corporation (IDC) Worldwide Quarterly Mobile Phone Tracker, vendors shipped a total of 343.3 million smartphones worldwide in the second... Read more
Apple TVs on sale for $20-$40 off MSRP
Best Buy has 32GB and 64GB Apple TVs on sale for $20-$40 off MSRP on their online store. Choose free shipping or free local store pickup (if available). Sale prices for online orders only, in-store... Read more
Mac minis on sale for $50-$100 off MSRP
B&H Photo has Mac minis on sale for $50 off MSRP including free shipping plus NY sales tax only: - 1.4GHz Mac mini: $449 $50 off MSRP - 2.6GHz Mac mini: $649 $50 off MSRP - 2.8GHz Mac mini: $949... Read more
Clearance 2015 13-inch MacBook Airs available...
B&H Photo has clearance 2015 13″ MacBook Airs available for $300 off original MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 1.6GHz/4GB/128GB MacBook Air (MJVE2LL/A): $799... Read more
Apple certified refurbished iPad mini 4s avai...
Apple has certified refurbished iPad mini 4s now available for up to $120 off the cost of new models. An Apple one-year warranty is included with each iPad, and shipping is free. The following models... Read more
Notebook Makers In No Rush To Adopt USB-C – R...
Digitimes’ Cage Chao and Joseph Tsai note that while the USB Type-C interface is enjoying growing popularity among smartphones and tablet makers, notebook and all-in-one (AIO) PC vendors (other than... Read more
iMacs on sale for up to $250 off MSRP
B&H Photo has 21″ and 27″ Apple iMacs on sale for up to $250 off MSRP including free shipping plus NY sales tax only: - 27″ 3.3GHz iMac 5K: $2049 $250 off MSRP - 27″ 3.2GHz/1TB Fusion iMac 5K: $... Read more
12-inch 1.1GHz Retina MacBooks on sale for up...
Amazon has 2016 12″ 1.1GHz/256GB Retina MacBooks on sale for up to $100 off MSRP including free shipping: - 12″ 1.1GHz Space Gray Retina MacBook: $1199 $100 off MSRP - 12″ 1.1GHz Silver Retina... Read more
Bare Bones Software Releases Free TextWrangle...
Bare Bones Software has announced the release and immediate availability of TextWrangler 5.5, a significant update to its powerful, free, general purpose text editor for Mac OS X. TextWrangler is a... Read more

Jobs Board

*Apple* Solutions Consultant - APPLE (United...
Job Summary As an Apple Solutions Consultant, you'll be the link between our future customers and our products. You'll showcase your entrepreneurial spirit as you Read more
Lead *Apple* Solutions Consultant - APPLE (...
Job Summary The Lead ASC is an Apple employee who serves as the Apple business manager and influencer across a number of Reseller locations. The Lead ASC's role Read more
*Apple* Retail - Multiple Positions, Charles...
Job Description:SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Retail - Multiple Positions, Willow...
Job Description:SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Evangelist - JAMF Software (United S...
The Apple Evangelist is responsible for building and cultivating strategic relationships with Apple 's small and mid-market business development field teams. This Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.