You may read this:

http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Articles/chapter_7_section_6.html#/ /apple_ref/doc/uid/TP30001163-CH15-TPXREF148


On 28.08.2008, at 12:14, Christian Giordano wrote:

Hi guys, I would like to create an Interface which will be eventually
implemented by some classes. I am a bit confused here, in objective-c
the .h files are basically already interfaces. Ok, but how could a .m
file implements more than one? I couldn't find any document explaining
how to implements multiple interfaces. In my ignorance I created a
normal .h file MyInterface.h and after importing it in my implementing
class header, I express it with the syntax that I've seen already:

@interface MyClass : NSObject <MyInterface> {
}

The problem is that I get a compiler error on the interface
declaration line saying: "cannot find protocol declaration for
'MyInterface'".

Does someone have any link or tips that might help me?


Thanks, chr
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