TweetFollow Us on Twitter

Mar 96 Top 10
Volume Number:12
Issue Number:3
Column Tag:Symantec Top 10

Symantec Top 10

This monthly column, written by Symantec’s Technical Support Engineers, is intended to give our readers technical information on using Symantec products.

By Kevin Quah and Noah Lieberman, Symantec Technical Support

Note: Source code files accompanying article are located on MacTech CD-ROM or source code disks.

Q: I am using the Visual Architect and cannot find a way to change the background color of my window. Is there a way to do this using the VA?

A: Although you cannot do this in VA, you can do it programmatically using the toolbox. The class CDocument has a data member macPort, which is a pointer to a GrafPort structure (see below). One of the fields of this structure is rgbFgColor, of type RGBColor. You can set this field with the toolbox call RGBForeColor() which takes an RGBColor as an argument. It will set the rgbFgColor field of the current CGrafPort to the color specified.

If you do not already have an RGBColor ready to pass, you can simply declare one, and set its three fields (between 0 and 65535) to get the color you want.

RGBColor myRGB;
myRGB.red = 0;   // Black
myRGB.blue = 0;
myRGB.green = 0; 

The only thing left to worry about is making sure that the right CGrafPort is current when you call RGBForeColor(); a good place to do this is in the MakeNewWindow() function in your CDocument object. A default VA project will produce the file x_CMain.cp (derived from CDocument). Notice the data member itsWindow in the first line. This is a pointer to a CWindow, the one that goes with the default CView in the Visual Architect .rsrc file, Main.

Override x_CMain::MakeNewWindow() in CMain. In CMain::MakeNewWindow(), first call x_CMain::MakeNewWindow, call the Prepare() function of your CWindow object (itsWindow), and call RGBForeColor() to set the color.

x_CMain::MakeNewWindow();
itsWindow->Prepare();
RGBForeColor(&myRGB);

Note: Although macPort is declared as a GrafPort, you can get at the CGrafPort fields by casting it to a CGrafPort; e.g., (CGrafPort)macPort->rgbFgColor.

Q: CDialogText seems to report keystrokes to its supervisor, but fails to report cuts and pastes. In the Visual Architect, I chose Classes from the Edit menu and defined a new class. If you type the name of a Library Class, VA will remember it correctly, but if you paste in the name of the Library Class, VA will forget it as soon as you close the dialog box or as soon as you click on another class name in the scrolling list. What is wrong?

A: There is a bug in CDialogText which will be fixed in a later release. For now, please make this change to CDialogText.cp:

virtual voidDoCommand(long theCommand);

void CDialogText::DoCommand(
 long   theCommand)
{
 inherited::DoCommand(theCommand);

 switch (theCommand)
 {
 case cmdCut:
 case cmdPaste:
 case cmdClear:
 if (editable)
    /* ID is identifier for this view */
 BroadcastChange(dialogTextChanged, &ID); 
 break;

 default:
 break;
 }
}

Q: I want to set a breakpoint in a function that is not in the file that is currently displayed in the Debugger window. How do I do this?

A: When you choose Run with Debugger from the project menu, the debugger will come up and place you at the beginning of the program. Switch back to the project manager and double-click the file you want to debug from the project window. Choose Debug File from the Project menu. This will bring you back into the debugger with the chosen file displayed in the debugger window. Now you can set your breakpoint.

Q: I’m trying to use floating-point numbers in my VA project using Symantec C++ 7.0.x, and I am getting wildly inaccurate results.

A: By default, a VA project includes ANSI_small++, which does not support floating-point numbers. Remove ANSI_small++ and replace it with ANSI++.

Q: I am familiar with command-line compilers where you would use a -d switch to define something for the entire project. How do you do this in Symantec C++?

A: In the Project Options dialog, select the compiler you are using (for example PowerPC C, or MrC++), and then select the Prefix page. Anything you add to the prefix will be globally defined.

Q: I have a single-segment code resource that was working fine. Now that I have made it multi-segment, it is crashing all over the place. I am not using any globals, so I should not need to set up A4 - right?

A. In multi-segment code resources, THINK C stores string literals the same way as globals. If you are using literals and constants, you still need to set up A4. In single-segment code resources, string literals are stored in code and you don’t need to set up A4 to use them. Symantec C++ handles string literals in code resources in the same way that THINK C does - unless you turn on Put String Literals in Code on the Compiler Options page of the Options dialog. Then, Symantec C++ will store string literals in code, and you will not need to set up A4 to use them.

Q: I need to access a data member or member function of my CApp class. How do I do this?

A: In CApp.h, add this statement:

 #define gApp ((CApp*)gApplication)

Now gApp will be a globally scoped pointer variable that you can use to access your CApp member functions or data members.

Q: I would like to use the MrC and MrC++ translators to compile an existing SPM C/C++ project. How do I do this?

A: a. Choose Options from the Project menu.

b. Click on the Extensions icon in the left scrolling window.

c. Select the .c file extension.

d. Set the Translator popup menu to SPM MrC.

e. Click on the Replace button.

Repeat steps (c) though (e) for .cp and .cpp file extensions, except set the Translator for both extensions to SPM MrC++. Click Save. Update and run your project.

The SPM MrC and MrC++ translators take a longer time to compile, but they produce code that is highly optimized. To view performance benchmarks visit the website:

http://www.symantec.com/lit/dev/macprdet.html

We recommend that you use the default translators (PowerPC C and PowerPC C++) during the earlier phases of development for fast edit-compile-debug cycles, and then switch to SPM MrC or MrC++ to create the later optimized builds of the product.

Q: I am trying to use the new MrC/MrC++ compiler off the Release 4 CD, and even on the most basic projects I am getting strange link errors such as: undefined symbol .B2S997, .B2S998, .B2S999. Am I doing something wrong?

A: In order to use the SPM MrC or MrC++ compilers, you must use the latest Symantec Project Manager 8.04d11 (or later). It may be found in the Pre-release Symantec C++ for Power Mac folder.

Q: My project now uses SPM MrC and SPM MrC++ translators. When I compile I get the warning:

Prefix "SPM MrC++";

While compiling "main.cp"

Warning: debugging symbols can't be generated with optimizations on

What is wrong?

A: It is not possible to debug optimized code with MrC/MrC++. If you select Optimizer On and also check the debug diamond in the project window, no debug information will be generated and you will get a warning to that effect.

Correction:

In the January MacTech Magazine Symantec Top 10 article, there was a question regarding how to add note files and ReadMe files to a SPM project. The solution was to make a <<none>> translator and map this to an extension such as .note. This procedure is not recommended and may cause project corruption.

There are two correct methods for adding non-source files to a project. Either hold down the command-key and drag a file to the project window (drag-and-drop method), or choose Add Files... from the Project menu, and then select All Files from the Show: popup menu. You can then add non-source files to your project. For more information, please consult pp. 16-17 of your User’s Guide.

Special Thanks To:

Michael Hopkins, Andrew McFarland, Yuen Li, Mark Baldwin, Glenn Austin, Craig Conner, Tom Emerson, John Micco and Jeff Weeks.

 
AAPL
$102.50
Apple Inc.
+0.25
MSFT
$45.43
Microsoft Corpora
+0.55
GOOG
$571.60
Google Inc.
+2.40

MacTech Search:
Community Search:

Software Updates via MacUpdate

Skype 6.19.0.450 - Voice-over-internet p...
Skype allows you to talk to friends, family and co-workers across the Internet without the inconvenience of long distance telephone charges. Using peer-to-peer data transmission technology, Skype... Read more
VueScan 9.4.41 - Scanner software with a...
VueScan is a scanning program that works with most high-quality flatbed and film scanners to produce scans that have excellent color fidelity and color balance. VueScan is easy to use, and has... Read more
Cloud 3.0.0 - 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
LibreOffice 4.3.1.2 - Free Open Source o...
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
SlingPlayer Plugin 3.3.20.505 - Browser...
SlingPlayer is the screen interface software that works hand-in-hand with the hardware inside the Slingbox to make your TV viewing experience just like that at home. It features an array of... Read more
Get Lyrical 3.8 - Auto-magically adds ly...
Get Lyrical auto-magically add lyrics to songs in iTunes. You can choose either a selection of tracks, or the current track. Or turn on "Active Tagging" to get lyrics for songs as you play them.... Read more
Viber 4.2.2 - Send messages and make cal...
Viber lets you send free messages and make free calls to other Viber users, on any device and network, in any country! Viber syncs your contacts, messages and call history with your mobile device,... Read more
Cocktail 7.6 - General maintenance and o...
Cocktail is a general purpose utility for OS X that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get... Read more
LaunchBar 6.1 - Powerful file/URL/email...
LaunchBar is an award-winning productivity utility that offers an amazingly intuitive and efficient way to search and access any kind of information stored on your computer or on the Web. It provides... Read more
Maya 2015 - 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

Latest Forum Discussions

See All

Rhonna Designs Magic (Photography)
Rhonna Designs Magic 1.0 Device: iOS Universal Category: Photography Price: $1.99, Version: 1.0 (iTunes) Description: Want to sprinkle *magic* on your photos? With RD Magic, you can add colors, filters, light leaks, bokeh, edges,... | Read more »
This Week at 148Apps: August 25-29, 2014
Shiny Happy App Reviews   | Read more »
Qube Kingdom – Tips, Tricks, Strategies,...
Qube Kingdom is a tower defense game from DeNA. You rally your troops – magicians, archers, knights, barbarians, and others – and fight against an evil menace looking to dominate your kingdom of tiny squares. Planning a war isn’t easy, so here are a... | Read more »
Qube Kingdom Review
Qube Kingdom Review By Nadia Oxford on August 29th, 2014 Our Rating: :: KIND OF A SQUARE KINGDOMUniversal App - Designed for iPhone and iPad Qube Kingdom has cute visuals, but it’s a pretty basic tower defense game at heart.   | Read more »
Fire in the Hole Review
Fire in the Hole Review By Rob Thomas on August 29th, 2014 Our Rating: :: WALK THE PLANKUniversal App - Designed for iPhone and iPad Seafoam’s Fire in the Hole looks like a bright, 8-bit throwback, but there’s not enough booty to... | Read more »
Alien Creeps TD is Now Available Worldwi...
Alien Creeps TD is Now Available Worldwide Posted by Ellis Spice on August 29th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Dodo Master Review
Dodo Master Review By Jordan Minor on August 29th, 2014 Our Rating: :: NEST EGGiPad Only App - Designed for the iPad Dodo Master is tough but fair, and that’s what makes it a joy to play.   | Read more »
Motorsport Manager Review
Motorsport Manager Review By Lee Hamlet on August 29th, 2014 Our Rating: :: MARVELOUS MANAGEMENTUniversal App - Designed for iPhone and iPad Despite its depth and sense of tactical freedom, Motorsport Manager is one of the most... | Read more »
Motorsport Manager – Beginner Tips, Tric...
The world of Motorsport management can be an unforgiving and merciless one, so to help with some of the stress that comes with running a successful race team, here are a few hints and tips to leave your opponents in the dust. | Read more »
CalPal Update Brings the App to 2.0, Add...
CalPal Update Brings the App to 2.0, Adds Lots of New Stuff Posted by Ellis Spice on August 29th, 2014 [ permalink ] | Read more »

Price Scanner via MacPrices.net

Apple now offering refurbished 21-inch 1.4GHz...
The Apple Store is now offering Apple Certified Refurbished 21″ 1.4GHz iMacs for $929 including free shipping plus Apple’s standard one-year warranty. Their price is $170 off the cost of new models,... Read more
Save $50 on the 2.5GHz Mac mini, on sale for...
B&H Photo has the 2.5GHz Mac mini on sale for $549.99 including free shipping. That’s $50 off MSRP, and B&H will also include a free copy of Parallels Desktop software. NY sales tax only. Read more
Save up to $300 on an iMac with Apple refurbi...
The Apple Store has Apple Certified Refurbished iMacs available for up to $300 off the cost of new models. Apple’s one-year warranty is standard, and shipping is free. These are the best prices on... Read more
The Rise of Phablets
Carlisle & Gallagher Consulting Group, a businesses and technology consulting firm focused solely on the financial services industry, has released an infographic depicting the convergence of... Read more
Bad Driver Database App Allows Good Drivers t...
Bad Driver Database 1.4 by Facile Group is a new iOS and Android app that lets users instantly input and see how many times a careless, reckless or just plain stupid driver has been added to the... Read more
Eddy – Cloud Music Player for iPhone/iPad Fre...
Ukraine based CapableBits announces the release of Eddy, its tiny, but smart and powerful cloud music player for iPhone and iPad that allows users to stream or download music directly from cloud... Read more
A&D Medical Launches Its WellnessConnecte...
For consumers and the healthcare providers and loved ones who care for them, A&D Medical, a leader in connected health and biometric measurement devices and services, has launched its... Read more
Anand Lal Shimpi Retires From AnandTech
Anand Lal Shimpi, whose AnandTech Website is famous for its meticulously detailed and thoroughgoing reviews and analysis, is packing it in. Lal Shimpi, who founded the tech site at age 14 in 1997,... Read more
2.5GHz Mac mini, Apple refurbished, in stock...
The Apple Store has Apple Certified Refurbished 2.5GHz Mac minis available for $509, $90 off MSRP. Apple’s one-year warranty is included, and shipping is free. Read more
13-inch 2.5GHz MacBook Pro on sale for $999,...
B&H Photo has the 13″ 2.5GHz MacBook Pro on sale for $999.99 including free shipping plus NY sales tax only. Their price is $100 off MSRP. Read more

Jobs Board

*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
Senior Event Manager, *Apple* Retail Market...
…This senior level position is responsible for leading and imagining the Apple Retail Team's global event strategy. Delivering an overarching brand story; in-store, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.