Getting the attribute dictionaries from a NSAttributedString

Question

How can I obtain the attributes of an NSAttributedString?

I thought using enumerateAttributesInRange:NSMakeRange(0, str.length) and then saving every attributes in a NSMutableDictionaries but I'd like to know if exists a better way.

EDIT------ My problem is that I have a NSAttributedString and i want to use this function on its attributes...

CTFramesetterSuggestFrameSizeWithConstraints(framesetter,range, __ATTRIBUTES__, size , NULL);

Answer 1

 NSDictionary *attributesFromString = [string attributesAtIndex:0 longestEffectiveRange:nil inRange:NSMakeRange(0, string.length)];