I need to quit Cocoa App when I click the red button on upper left.
I found this page saying
So what you need to do first is have the window you want to close be connected to an IBOutlet in the nib. For this example i connected the window to an outlet named "mainWindow".
How can I do this? I found Windows in xib file, but how can I connect it to an IBOutlet in the nib?
Or, is there any way to quit the cocoa app clicking red button?
EDIT
I should have put the code in the automatically generated delegate file
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