How to reference Protocol in Objective-C?

Question

I know the directive for a protocol is @protocol just like @selector, but what is the "type" for referencing a Protocol (eg. SEL for @Selector)? In MacOSX stack, it's Protocol *?

Answer 1

You reference it as:

id<TheNameOfTheProtocol> aVariableToThatProtocol;

Or if a message wants a (Protocol *) object:

[myObject conformsToProtocol:@protocol(TheNameOfTheProtocol)];