TweetFollow Us on Twitter

Oct 94 Top 10
Volume Number:10
Issue Number:10
Column Tag:Think Top 10

Think Top 10

By Mark B. Baldwin and Craig Connor, Symantec Technical Support

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 pointers to base classes be cast as pointers to derived classes?

A. Yes. Run-Time Type Identification (RTTI), allows the safe casting of base class pointers to derived classes. If the cast is not allowed, a NULL pointer is returned.

Q. How come I get an error when I declare a variable of any type with the name 'v' or 'h'?

A. There’s an enumeration in Types.h that looks like:

     
     enum { h, v };
     

which clutters the namespace for both h and v.

Q. Using TCL, when I create a series of CEditText panes in a window, why are they placed at seemingly random places on the screen?

A. The coordinates that you are setting for your CEditText object are not being interpreted as window coordinates. Have your object call FrameToWindR(Rect *windowCoordinates). This will adjust the frame of the pane to the correct position on the screen.

Q. Why doesn’t the example in the manual for CArrayIterator work? I get the following:

     File "CPtrArrayIterator_myClass.cp"; Line 7
     Error:   'gAncestors' is not a member of struct 
     'CPtrArrayIterator<myClass>'
     
     File "CPtrArrayIterator_myClass.cp"; Line 9
     Error:   unable to open input file 'CPtrArrayIterator.tem'

A. The example in the manual for CArrayIterator is incorrect. 1) Remove the line for TCL_DEFINE_CLASS. You do this because the base class for CArrayIterator is not an RTTI class. 2) Remove the #include CArrayIterator.tem. This file does not get created because you are no longer calling TCL_DEFINE_CLASS.

Q. How do I change the foreground/ background color of a CStaticText?

A. Instantiate a pointer to your CStaticText object, or if you are using VA, find where the object pointer is created in x_CMain. Then use the following formula:


/* 1 */
((*CColorTextEnvirons)myCStaticText->itsEnvirons)
 ->SetColorInfo(*RGBColor forecolor, *RGBColor backcolor);  

Notice we cast from a base to a derived class CEnvrirons to a derived class CColorTextEnvirons.

Q. How do I read in a CBitMapPane?

A. Try the following code segment. It reads a bitmap from a file and assigns it to a CBitMapPane object.

     
/* 2 */
    CPNTGFile   *theFile = NULL;
    SFTypeList  myList;
    SFReply theReply;
    Point   where;
     
    where.h=120;  where.v=190;  // SF dialog window position
             
    myList[0]='PNTG';
         
    SFGetFile(where,0,NULL,1,myList,0,&theReply);
         
    if(theReply.good)
    {
        theFile = new CPNTGFile;   // Make a File object and read the
        theFile->SFSpecify(&theReply);// data into a new BitMap
        theFile->Open(fsRdWrPerm);
        theBitMap = ((CPNTGFile *)itsFile)->ReadNewBitMap(TRUE);
     
        myBitMapPane->SetBitMap(theBitMap);
    }

Q. How do I use VA to make CIconButtons work like radio buttons? It works when I do a Try Out, but then the code is not generated.

A. Version 7.0.3 fixes this problem. Download the 7.0.3 Patch from an on-line service.

Q. How do I make a PICTGrid in a Window using VA?

A. Create the window you want to use. Temporarily create a tear-off menu view, and copy the PICTGrid from the menu, and paste it into your window. Then delete the tear-off menu.

Q. Everytime I create a VA project it takes a very long time to compile. How can I reduce the compile time?

A. Open the “Project Models:Visual Architect:@1.1” file, and compile it. From now on, the TCL files will be compiled upon the creation of a new VA project.

Q. How do I add a new project type to the project models that appear in the New Project Dialog?

A. Create a new project, include the files and libraries you want, compile it, and copy the whole folder over to the Project Models folder. Name the project file “@1.1”. The “@1” will be replaced with the project name you specify. If you have trouble, take a look at the existing project models to see the naming convention for the project files.

Special Thanks To

Steve Howard, Michael Hopkins, Colen Garoutte-Carson, Rick Hartmann, Kevin Irlen, Yuen Li, Celso Barriga, Scott Shurr, and Chris Prinos, et al.

 
AAPL
$565.89
Apple Inc.
+41.14
MSFT
$39.36
Microsoft Corpora
-0.33
GOOG
$524.16
Google Inc.
-2.78

MacTech Search:
Community Search:

Software Updates via MacUpdate

TechTool Pro 7.0.3 - Hard drive and syst...
TechTool Pro is now 7, and this is the most advanced version of the acclaimed Macintosh troubleshooting utility created in its 20-year history. Micromat has redeveloped TechTool Pro 7 to be fully 64... Read more
MacFamilyTree 7.1.6 - 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
EtreCheck 1.9.9 - For troubleshooting yo...
EtreCheck is a simple little app to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support... Read more
TeamViewer 9.0.28116 - Establish remote...
TeamViewer gives you remote control of any computer or Mac over the Internet within seconds, or can be used for online meetings. Find out why more than 200 million users trust TeamViewer! Free for... Read more
Viber 4.1.0 - 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
Apple iOS 7.1.1 - The latest version of...
The latest version of iOS can be downloaded through iTunes. Apple iOS 7 brings an all-new design and all-new features. Simplicity Simplicity is often equated with minimalism. Yet true simplicity is... Read more
1Password 4.3 - Powerful password manage...
1Password is a password manager that uniquely brings you both security and convenience. It is the only program that provides anti-phishing protection and goes beyond password management by adding Web... Read more
Lens Blur 1.3.0 - True out-of-focus boke...
Let Lens Blur transform your existing photo into true SLR-quality out-of-focus bokeh effect! Everyone needs a gorgeous personalized background for a social profile, blog, Web/UI design, presentation... Read more
VMware Fusion 6.0.3 - Run Windows apps a...
VMware Fusion allows you to create a Virtual Machine on your Mac and run Windows (including Windows 8.1) and Windows software on your Mac. Run your favorite Windows applications alongside Mac... Read more
BitTorrent Sync 1.3.93 - Sync files secu...
BitTorrent Sync allows you to sync unlimited files between your own devices, or share a folder with friends and family to automatically sync anything. File transfers are encrypted. Your information... Read more

Latest Forum Discussions

See All

Spin It Review
Spin It Review By Jordan Minor on April 24th, 2014 Our Rating: :: SPIN ME RIGHT ROUNDUniversal App - Designed for iPhone and iPad Spin It has a fine puzzle game model, but its execution lacks energy.   | Read more »
The Sandbox Gets Update, Receives New Ca...
The Sandbox Gets Update, Receives New Campaign and New Elements Posted by Tre Lawrence on April 24th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Football Management Simulator One For El...
Football Management Simulator One For Eleven Released Worldwide Today for iOS Posted by Simon Reed on April 24th, 2014 [ permalink ] Free-To-Play football management title One For E | Read more »
Leo’s Fortune Review
Leo’s Fortune Review By Jordan Minor on April 24th, 2014 Our Rating: :: FORTUNATE SONUniversal App - Designed for iPhone and iPad Leo’s Fortune delivers a platforming experience as creative and refined as any console game.   | Read more »
Suited Up (Games)
Suited Up 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Suited Up is a difficult, one-touch platformer that requires players to visualize each jump. The controls in Suited Up are simple,... | Read more »
MyTP One Mountain - Ski, Freeski and Sno...
MyTP One Mountain - Ski, Freeski and Snowboard 1.0.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0.0 (iTunes) Description: As real snow is melting away in the snow parks around the northern hemisphere, it's now time... | Read more »
Tank Battle: East Front 1943 (Games)
Tank Battle: East Front 1943 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Tank Battle: East Front 1943 is the third in the successful ‘Tank Battle: East Front’ series of games for iPhone... | Read more »
Third Eye Crime: Act 1 (Games)
Third Eye Crime: Act 1 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: "You have to see Third Eye Crime" Touch Arcade "Third Eye Crime is unlike anything currently available for mobile... | Read more »
Wayward Souls (Games)
Wayward Souls 1.00 Device: iOS Universal Category: Games Price: $4.99, Version: 1.00 (iTunes) Description: **Buy the game now at an introductory sale price of $4.99 USD. Every time we do a big content update, we will raise the price... | Read more »
Leo's Fortune (Games)
Leo's Fortune 1.0.2 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0.2 (iTunes) Description: Leo’s Fortune is a platform adventure game where you hunt down the cunning and mysterious thief that stole your gold.... | Read more »

Price Scanner via MacPrices.net

16GB 1st generation iPad mini available for $...
Radio Shack has a select number of refurbished 1st generation 16GB WiFi iPad minis available for $199.99 on their online store. Choose free shipping or free ship-to-store. We expect these to sell out... Read more
13-inch 2.5GHz MacBook Pro on sale for $100 o...
B&H Photo has the 13″ 2.5GHz MacBook Pro on sale for $1099 including free shipping plus NY sales tax only. Their price is $100 off MSRP. Read more
iPad Sales “Lull” A Reality Correction Of Unm...
I have lots of time for Jean-Louis Gassée, the former Apple Computer executive (1981 to 1990) who succeeded Steve Jobs as head of Macintosh development when the latter was dismissed in 1985. Mr.... Read more
Apple Makes OS X Betas Available To All – Wit...
Apple’s OS X Beta Seed Program, which lets you install the latest pre-release builds, try it out, and submit your feedback, is now open to anyone who wants to sign on rather than to developers and... Read more
Apple Releases iOS 7.1.1 Update
The latest iOS 7.1.1 update contains improvements, bug fixes and security updates, including: • Further improvements to Touch ID fingerprint recognition • Fixes a bug that could impact keyboard... Read more
Logitech Announces Thinner, Lighter, More Fle...
Logitech has announced an update to its Ultrathin for iPad Air, iPad mini and iPad mini with Retina display, improving the flexibility and design of its award-winning predecessor with an even thinner... Read more
Logitech Introduces Hinge, Big Bang and Turna...
Logitech has announced expansion of its tablet product line with three new cases – the Logitech Hinge, the Logitech Big Bang and the Logitech Turnaround – each for the iPad Air, iPad mini and iPad... Read more
WaterField’s Rough Rider Leather Messenger Ba...
WaterField Designs have announced the new 15-inch size of their popular Rough Rider leather messenger bag, a vintage-looking bag that combines Old West charm and ruggedness with distinctly modern... Read more
New Mac Pro on sale, save $100 on the 4-Core...
J&R has the new 4-Core Mac Pro in stock today and on sale for $2899 including free shipping plus NY sales tax only. Their price is $100 off MSRP, and it’s the lowest price available for this... Read more
Apple refurbished iMacs available for up to $...
The Apple Store has Apple Certified Refurbished 2013 iMacs available for up to $300 off the cost of new models. Apple’s one-year warranty is standard, and shipping is free. - 27″ 3.4GHz iMac – $1699... Read more

Jobs Board

*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
Position Opening at *Apple* - Apple (United...
…customers purchase our products, you're the one who helps them get more out of their new Apple technology. Your day in the Apple Store is filled with a range of Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
*Apple* Inc. Research Data Specialist - Appl...
…of Worldwide Market Research & Intelligence. The team is responsible for conducting Apple branded consumer market research. It is also responsible for analyzing data Read more
*Apple* Automotive Parts Department position...
Apple Automotive is one of the fastest growing dealer…and it shows. Consider making the switch to the Apple Automotive Group today! At Apple Automotive, we Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.