Lap Cat Software Blog » Blog Archive » Everything you always wanted to know about NSApplication This is a very interesting blog article, accompanied by an equally interesting test application. The author wanted to figure out precisely the order in which NSApplication calls events and objects as it opens. Now, I can confirm that he's not alone in this curiosity, and I'm very appreciative that he took the time to document it. The app writes very verbosely to the Console, delineating each teeny tiny step that takes place.