Comment by sdcfgy

It's distinctly problematic there unfortunately. Particularly the moment you add any UI toolkits to it. I've had so many problems with stuff that uses Qt because Qt takes a while to catch up with things Apple broke inside their Cocoa internals. Very irritating platform to work on.

Edit: love how I get downvoted for facts?! They literally broke Cocoa so it was throwing hopeless useless exceptions at the bottom of the stack when they changed the native file open boxes to run in another process. Two bits of software I use couldn't raise an open file dialog window any more.