On Thu, Jan 1, 2009 at 7:37 PM, Lachie <lachiec at gmail.com> wrote: > Cheque it: http://developer.apple.com/DOCUMENTATION/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/chapter_7_section_1.html#//apple_ref/doc/uid/TP40008048-CH100-SW1 see also: /usr/include/objc/runtime.h Dave