remove blue shadow of NSButton

Question

Always (programmatically or via IB) i get this blue shadow on the first set button:

I want to get rid of it.. how?

Answer 1

That's called the focus ring, and it's to visually indicate which view is the first responder for key events.

If you don't want it to show up, you can use the -[NSView setFocusRingType:] method with the NSFocusRingTypeNone constant. This is also settable in Interface Builder.