Event for Red Close button of NSWindowController

Question

How can I handle an event where I click on the red close button of a NSWindowController?

Reason for asking is that I have a video playing in a new NSWindowController window and when user clicks on the red close button, the audio continues playing, so I want to use the event to close the video.

score 52 · Accepted Answer · answered May 03 '11 at 05:42

Make your NSWindowController subclass conform to the NSWindowDelegate protocol and be the delegate of the corresponding window. Having done that, implement:

- (void)windowWillClose:(NSNotification *)notification {
    // whichever operations are needed when the
    // window is about to be closed
}

in your NSWindowController subclass.

score 1 · Answer 2 · answered Jun 23 '17 at 12:50

1

In my case, I need to observe the event, see https://stackoverflow.com/a/44721893/1418457

NotificationCenter.default.addObserver(self, selector: #selector(windowWillClose(_:)), name: Notification.Name.NSWindowWillClose, object: nil)

answered Jun 23 '17 at 12:50

onmyway133

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Event for Red Close button of NSWindowController

2 Answers2