TweetFollow Us on Twitter

Aug 94 Top 10
Volume Number:10
Issue Number:8
Column Tag:Think Top 10

Think Top 10

By Symantec’s Technical Support Team

This is a monthly column written by Symantec’s Technical Support Engineers intended to provide you with information on Symantec products. Each month we cover either a specific application of tools or a “Q&A” list.

Q. Can SourceServer be used successfully with a Visual Architect project?

A. It can. However, Visual Architect is not currently SourceServer “savvy” . Here are some guidelines for a peaceful coexistence between the two:

Rule #1: Check out necessary Visual Architect files BEFORE Generating. Since VA does NOT honor SourceServer’s 'ckid' resources, it will go ahead and overwrite files that have been checked out as read-only. So before you Generate from Visual Archtitect, make sure you’ve checked out any files that will be modified, otherwise you WON’T to be able to check the revisions back in. This goes for the Visual Architect.rsrc file, as well.

Rule #2: Close the Visual Architect.rsrc file before checking it in or out. A Visual Archtiect.rsrc file’s 'ckid' resource that is modified by SourceServer while the file is open will NOT be saved when the file is closed. The file won’t be able to be checked in or out after this.

If you forget to follow either of these rules, you may be able to set things right again by issuing the appropriate OrphanFiles, Undo Checkout, or DeleteRevisions commands. But this is not fun.

Strong Suggestion: Set up nested ProjectorDB’s to separate Generate-Once and Generate-Many and non-Visual Architect files.

Currently VA is rather inflexible about where it puts its generated files. You get exactly one choice: all go in a folder named “Source” in your project folder, and sub-folders are ignored. You can, however, use nested ProjectorDB’s to bring some order to this ungainly group of files, and at the same time avoid the performance hit which would be incurred from storing all those files in the same ProjectorDB.

The key difference among the files in the VA “Source” folder is whether they are generate-once or generate-many. For the most part, this means lower-layer versus upper-layer files, but it’s important to be aware that a number of other files, such as References.cp and the <class>Items.h files, are also generate-many. Since you’ll have to check out some, if not all, generate-many files each time you Generate, and then check them back in, it makes sense to group these files into a sub-project (“VA Regenerated Files”, for instance). Note that your VA.rsrc file should also be checked into this sub-project. The rest of the files in the “Source” folder will go in another sub-project (call it “VA One-Time Files”), and finally your non-VA files could go either into the top-level project, or into a sub-project (or sub-projects) of their own. That’s the basic idea!

Q. How do I get started converting my TCL 1.1.3 project to use the new TCL 2.0?

A. The file “Converting To TCL 2.0.doc” in the “Supplementary Info.Π” located in the TCL Folder contains an extensive list of issues you will face getting your source to compile and run under the new TCL. The most important first step, however, is to start with a fresh, working TCL 2.0 “Hello World” project and add your source to it, rather than trying to coax your existing project document into using the new TCL.

Follow these steps:

1. To convert your old TCL 1.1.3 project, create a new project and choose Visual Architect for the project model. (Version 7.0 now offers you a list of project models to choose from when creating a new project.)

2. Since you are converting an old TCL project and will probably not be using Visual Architect at the moment, remove the “Visual Architect.rsrc” file from the first segment of the project. A file called “Project Resources.rsrc”, located in its own segment, will also be created. This file contains essential TCL resources, some of which may be the same or similar to ones used by your original TCL project. You will have to determine which, if any, of your original resources you need to keep.

3. Add your sources into the last segment named “Application”.

Q. My Visual Architect application is dying in the debugger on a call to TCLGetWindow. It says it doesn’t know the type of my CWindow.

A. Every object instantiated by TCLGetWindow must be declared in a TCL_FORCE_REFERENCE() macro in your application’s ForceClassReferences() override. VA does this automatically for classes it knows about, but when you use your own classes in VA-generated code, you have to do it by hand. The usual suspects are CWindow (or CDialog), CScrollPane, CPanorama, etc. Or, check out the References.cp file generated by VA, which forces references to many standard TCL classes. Include this file in your project, and you’ll only have to worry about references to your own derived classes.

Q. What is the correct way of managing more than one document window?

A. The correct way is to create directors supervised by the document (or “main director”) for the second and additional windows.

Q. What happened to CObject in TCL 2.0.x?

A. This version of TCL is no longer rooted to a single CObject class. In fact, CObject no longer exist and must be removed from your own class hierarchy. The following classes can be used as root classes instead: CChore, CCollaborator, CTask, CStream, and CString. If you have added any functionality to CObject, they must be implemented elsewhere.

Q. How can I add persistence to my classes generated by Visual Architect?

A. At a minimum, you just define PutTo() and GetFrom() member functions for your class and - because Object I/O uses templates to get and put objects - expand the PutObject() and GetObject() functions in a file like CStream_CBitMap.cpp. (You don’t always have to do the latter; just for root classes.) For a more detailed discussion, look at the “Using CSaver.doc” in the “Supplementary Info.Π” located in the TCL Folder.

Q. Is it possible to test compiler options such as structure alignment during runtime in my C++ program?

A. Yes, you can with version 7.0.2 of the C++ compiler. A new feature in Symantec C++ 7.0.2 is being able to test and set various compiler options during run time as in Think C. Here’s how to do it:


/* 1 */
  #if __option(xxx)// Returns TRUE if option xxx is on 
  #pragma options(xxx,!yyy) // Turns option xxx on and option yyy off
 

The options are listed in a README file called “Compiler pragma options.”

Q. How do I call a code resource from my C++ program?

A. Here’s a small program (in C++) which calls a code resource. For this example the code resource takes 2 arguments, an int and a character pointer. It assumes that the resource has been merged into the project’s .rsrc with type CODE and name myCodeResource.


/* 2 */
/* UsesCodeResource.cpp */
#include <stdio.h>
extern "C" typedef void (*CRPtr) (int, char*);
void main()
{
 char myString[20];
 Handle myCRhandle;

 myCRhandle = GetNamedResource('CODE',"\pmyCodeResource");
 HLock(myCRhandle);
 (* (CRPtr) (*myCRhandle)) (5,myString);
 HUnlock(myCRhandle);
 printf("myString=\"%s\"\n",myString);
}

Q. THINK Inspector doesn’t seem to be showing me all the objects created in my program. Why not?

A. The Think Inspector will only display objects created from the heap. Objects created from the stack will not show up. For example,


/* 3 */
CMyClassmyObject;//will not show up
CMyClass*myObjectPtr = TCL_NEW(CMyClass, (args)); //will show up

Q. Are there any issues with running Symantec C++ for Macintosh on my Power Mac?

A. Symantec C++ for Macintosh 7.0 runs emulated on the PowerMac without problem. If you’re still running version 6.x, make sure you turn OFF the Modern Memory Manager.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Latest Forum Discussions

See All

Challenge those pesky wyverns to a dance...
After recently having you do battle against your foes by wildly flailing Hello Kitty and friends at them, GungHo Online has whipped out another surprising collaboration for Puzzle & Dragons. It is now time to beat your opponents by cha-cha... | Read more »
Pack a magnifying glass and practice you...
Somehow it has already been a year since Torchlight: Infinite launched, and XD Games is celebrating by blending in what sounds like a truly fantastic new update. Fans of Cthulhu rejoice, as Whispering Mist brings some horror elements, and tests... | Read more »
Summon your guild and prepare for war in...
Netmarble is making some pretty big moves with their latest update for Seven Knights Idle Adventure, with a bunch of interesting additions. Two new heroes enter the battle, there are events and bosses abound, and perhaps most interesting, a huge... | Read more »
Make the passage of time your plaything...
While some of us are still waiting for a chance to get our hands on Ash Prime - yes, don’t remind me I could currently buy him this month I’m barely hanging on - Digital Extremes has announced its next anticipated Prime Form for Warframe. Starting... | Read more »
If you can find it and fit through the d...
The holy trinity of amazing company names have come together, to release their equally amazing and adorable mobile game, Hamster Inn. Published by HyperBeard Games, and co-developed by Mum Not Proud and Little Sasquatch Studios, it's time to... | Read more »
Amikin Survival opens for pre-orders on...
Join me on the wonderful trip down the inspiration rabbit hole; much as Palworld seemingly “borrowed” many aspects from the hit Pokemon franchise, it is time for the heavily armed animal survival to also spawn some illegitimate children as Helio... | Read more »
PUBG Mobile teams up with global phenome...
Since launching in 2019, SpyxFamily has exploded to damn near catastrophic popularity, so it was only a matter of time before a mobile game snapped up a collaboration. Enter PUBG Mobile. Until May 12th, players will be able to collect a host of... | Read more »
Embark into the frozen tundra of certain...
Chucklefish, developers of hit action-adventure sandbox game Starbound and owner of one of the cutest logos in gaming, has released their roguelike deck-builder Wildfrost. Created alongside developers Gaziter and Deadpan Games, Wildfrost will... | Read more »
MoreFun Studios has announced Season 4,...
Tension has escalated in the ever-volatile world of Arena Breakout, as your old pal Randall Fisher and bosses Fred and Perrero continue to lob insults and explosives at each other, bringing us to a new phase of warfare. Season 4, Into The Fog of... | Read more »
Top Mobile Game Discounts
Every day, we pick out a curated list of the best mobile discounts on the App Store and post them here. This list won't be comprehensive, but it every game on it is recommended. Feel free to check out the coverage we did on them in the links below... | Read more »

Price Scanner via MacPrices.net

Free iPhone 15 plus Unlimited service for $60...
Boost Infinite, part of MVNO Boost Mobile using AT&T and T-Mobile’s networks, is offering a free 128GB iPhone 15 for $60 per month including their Unlimited service plan (30GB of premium data).... Read more
$300 off any new iPhone with service at Red P...
Red Pocket Mobile has new Apple iPhones on sale for $300 off MSRP when you switch and open up a new line of service. Red Pocket Mobile is a nationwide MVNO using all the major wireless carrier... Read more
Clearance 13-inch M1 MacBook Airs available a...
Apple has clearance 13″ M1 MacBook Airs, Certified Refurbished, available for $759 for 8-Core CPU/7-Core GPU/256GB models and $929 for 8-Core CPU/8-Core GPU/512GB models. Apple’s one-year warranty is... Read more
Updated Apple MacBook Price Trackers
Our Apple award-winning MacBook Price Trackers are continually updated with the latest information on prices, bundles, and availability for 16″ and 14″ MacBook Pros along with 13″ and 15″ MacBook... Read more
Every model of Apple’s 13-inch M3 MacBook Air...
Best Buy has Apple 13″ MacBook Airs with M3 CPUs in stock and on sale today for $100 off MSRP. Prices start at $999. Their prices are the lowest currently available for new 13″ M3 MacBook Airs among... Read more
Sunday Sale: Apple iPad Magic Keyboards for 1...
Walmart has Apple Magic Keyboards for 12.9″ iPad Pros, in Black, on sale for $150 off MSRP on their online store. Sale price for online orders only, in-store price may vary. Order online and choose... Read more
Apple Watch Ultra 2 now available at Apple fo...
Apple has, for the first time, begun offering Certified Refurbished Apple Watch Ultra 2 models in their online store for $679, or $120 off MSRP. Each Watch includes Apple’s standard one-year warranty... Read more
AT&T has the iPhone 14 on sale for only $...
AT&T has the 128GB Apple iPhone 14 available for only $5.99 per month for new and existing customers when you activate unlimited service and use AT&T’s 36 month installment plan. The fine... Read more
Amazon is offering a $100 discount on every M...
Amazon is offering a $100 instant discount on each configuration of Apple’s new 13″ M3 MacBook Air, in Midnight, this weekend. These are the lowest prices currently available for new 13″ M3 MacBook... Read more
You can save $300-$480 on a 14-inch M3 Pro/Ma...
Apple has 14″ M3 Pro and M3 Max MacBook Pros in stock today and available, Certified Refurbished, starting at $1699 and ranging up to $480 off MSRP. Each model features a new outer case, shipping is... Read more

Jobs Board

Omnichannel Associate - *Apple* Blossom Mal...
Omnichannel Associate - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Read more
Operations Associate - *Apple* Blossom Mall...
Operations Associate - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Read more
Cashier - *Apple* Blossom Mall - JCPenney (...
Cashier - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Blossom Mall Read more
IT Systems Engineer ( *Apple* Platforms) - S...
IT Systems Engineer ( Apple Platforms) at SpaceX Hawthorne, CA SpaceX was founded under the belief that a future where humanity is out exploring the stars is Read more
*Apple* Systems Administrator - JAMF - Activ...
…**Public Trust/Other Required:** None **Job Family:** Systems Administration **Skills:** Apple Platforms,Computer Servers,Jamf Pro **Experience:** 3 + years of Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.