TweetFollow Us on Twitter

Jul 97 - Tips

Volume Number: 13 (1997)
Issue Number: 7
Column Tag: Tips & Tidbits

Jul 97 - Tips & Tidbits

by Steve Sisak

In article <19970223210019110631@stcc010.ulaval.ca>, <cbrunet@geocities.com> (Charles Brunet) wrote:
When I call FSpDelete in my application, the document is not always deleted from the Finder. Sometime, I must create an other document with the same name to erase it. Is it possible to ask Finder to forget this file right now? I have the same problem when I create a document. It take some time before it appear in the Finder.

How to update the informations in the Finder? If you have a scriptable finder, you can send it an update event. Here is a snippet from an (as of yet) unreleased piece of software:

OSErr
ICTyper::SendFinderAEUpdate(FSSpec &inFile)
{
  OSErr  err = noErr;
  AEDesc   processDesc;
  AppleEvent   ae, aeReply;
  ae.descriptorType = aeReply.descriptorType = processDesc.descriptorType
= typeNull;
  ae.dataHandle = aeReply.dataHandle = processDesc.dataHandle = nil;
  
  Try_ {
   DescType finderType = 'MACS';
   err =
::AECreateDesc(typeApplSignature,&finderType,sizeof(DescType),&processDesc);
   FailOSErr_(err);
   
   err  = ::AECreateAppleEvent('fndr', 'fupd',&processDesc,
                    
kAutoGenerateReturnID,kAnyTransactionID,&ae);
   FailOSErr_(err);
   
   err =
::AEPutParamPtr(&ae,keyDirectObject,typeFSS,&inFile,sizeof(inFile));
   FailOSErr_(err);

   err = ::AESend(&ae,&aeReply, kAENoReply | kAENeverInteract,
kAENormalPriority,
        kAEDefaultTimeout,nil,nil);
   FailOSErr_(err);
  }
  Catch_(catchErr) {err = catchErr;} EndCatch_
  
  if (processDesc.descriptorType != typeNull) :AEDisposeDesc(&processDesc);
  if (ae.descriptorType != typeNull) ::AEDisposeDesc(&ae);
  if (aeReply.descriptorType != typeNull) :AEDisposeDesc(&aeReply);
  return err;
}

Jim Correia
pmth02jc@umassd.edu


Screen Shots the Gnarly Way

One thing you can't do on the standard MacOS today is take a screen snapshot with a menu being displayed (or indeed, with the mouse down). There are lots of third-party solutions to this, but in fact there is a way to get such a screen snapshot, by installing no additional software other than MacsBug. And since all readers of this magazine already have MacsBug installed (well, don't you?), that means you can indeed take screen snapshots with menus displayed on your Mac!

CAUTION: this technique can crash your machine, or have other unexpected consequences. Perhaps you should look on it as Another Fun Thing to Do With MacsBug, to show off to your fellow geeks at parties, rather than as a serious technique for regular use.

First of all, type cmd-shift-3 to invoke the standard screen snapshot FKEY. This is purely to make sure the FKEY code is loaded in memory; you can throw away the PICT file it creates at this point. Next, hold down the mouse button to display the menu that you want to take a snapshot of. While still holding the button down, use your other hand to press the interrupt button (or key sequence) to break into MacsBug. Once the MacsBug screen appears, you can release the mouse button.

Use the "hx" command, if necessary, to switch to the system heap. Now use the command

 hd FKEY

to find out where the code for FKEY 3 is loaded. You will see a display that looks something like this:

 Displaying the System heap at 00002000
   Start  Length   Tag Mstr Ptr Lock Prg Type  ID  File   Name
  0038F52C 0000046C+08  R  0019DA1C    P  FKEY 0003 0002
 #1 block listed, which uses #1152 bytes, storing #1132 bytes

(If you see more than one FKEY loaded, the one you want will have "0003" under the ID column.) Make a note of the hexadecimal number under "Start" -- that is the start address of the FKEY code. Next, enter the following commands:

 sp := sp-4
 sl sp pc
 pc := xxxxxxxx

(replace the "xxxxxxxx" with the start address of FKEY 3 you obtained before.) Finally, enter the command "g" to resume execution. You should hear the click of the snapshot being taken, followed by the disappearance of the menu that was being displayed. But if you have a look at the resulting snapshot PICT file, you will see that it shows the menu!

Assuming your machine stays up that long (hee-hee)...

Lawrence D'Oliveiro
LDO@waikato.ac.nz

 

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

9-inch 32GB Space Gray iPad Pro on sale for $...
B&H Photo has the 9″ 32GB WiFi Space Gray Apple iPad Pro on sale for $50 off MSRP including free shipping. B&H charges sales tax in NY only: - 9″ Space Gray 32GB WiFi iPad Pro: $549 $50 off... Read more
15-inch Retina MacBook Pros on sale for up to...
B&H Photo has 15″ Retina MacBook Pros on sale for up to $200 off MSRP. Shipping is free, and B&H charges NY tax only: - 15″ 2.2GHz Retina MacBook Pro: $1849 $150 off MSRP - 15″ 2.5GHz Retina... Read more
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

Jobs Board

*Apple* Retail - Bilingual - Multiple Positi...
…speaking a plus Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the Read more
Simply Mac *Apple* Specialist- Repair Techn...
…The Technician is a master at working with our customers to diagnose and repair Apple devices in a manner that exceeds the expectations set forth by Apple Read more
*Apple* Mobile Master - Best Buy (United Sta...
What does a Best Buy Apple Mobile Master do? At Best Buy, our mission is to leverage the unique talents and passions of our employees to inspire, delight, and enrich Read more
Best Buy *Apple* Computing Master - Best Bu...
What does a Best Buy Apple Computing Master do? At Best Buy our mission is to leverage the unique talents and passions of our employees to inspire, delight, and Read more
*Apple* Valley, CA School Speech Therapy Ope...
Apple Valley, CA School Speech Therapy Openings + Job Location: Apple Valley, CA + Category: Schools - SLP - CFY + Apply Now! + Back to Results Speech Language Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.