External Writing Help

[Brent Anderson]

Hello.

Here is a quick followup to this message, in case anyone is  
interested. After digging through Apple and Revolution Mailing lists  
and learning Objective-C basics, we discovered that the only way to  
link an Objective-C framework to a Revolution application is through  
the use of C++ (A footnote in a newsletter found here: http:// 
www.runrev.com/newsletter/november/issue13/newsletter5.php).  
Fortunately, Objective-C interoperates rather well with C++, so this  
won't be too difficult to achieve. A great article on this can be  
found here:

http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/ 
Articles/chapter_4_section_10.html

Although we haven't tested it (yet) we have been able to successfully  
build the Revolution external when compiled using the Objective-C++  
compiler. From there, all we have to do is link the Framework in  
question with our xcode project, write up the "glue" interface from  
Revolution to C++ to Objective C, and then start interfacing with the  
Framework from within Revolution. In a nutshell, use .mm as the  
extension to glue Objective C to C++, include your referencing code  
inside that, and build your external as you would normally. I think  
it might be possible to write up an Objective-C Framework to External  
maker since the process seems relatively straightforward, however I'm  
not up to that challenge at the moment.

Thanks,
Brent Anderson
www.FieryFerret.com
www.SpaceCampUtah.org