April 2015
Intermediate to advanced
556 pages
17h 47m
English
book
Cocoa Programming for OS X: The Big Nerd Ranch Guide
by Aaron Hillegass, Adam Preble, Nate Chandler
Content preview from Cocoa Programming for OS X: The Big Nerd Ranch Guide
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Challenge: Beep-beep!
Make your application beep when it gives up its active status. NSApplication posts an NSApplicationDidResignActiveNotification notification. Your AppDelegate is a delegate of NSApplication. NSBeep() will cause a system beep.