Listen for window resize event in Swift / Objective-C

Question

Is it possible to iterate over all open windows of any application in OSX and listen to their resize events in Swift? I want to create custom window manager that would move

Answer 1

first step，you should add NSWindowDelegate and function windowWillResize，full code like this：

class MainWindowController: NSWindowController, NSWindowDelegate {

    override var windowNibName: String? {
        return "MainWindowController"
    }

    override func windowDidLoad() {
        super.windowDidLoad()
    }

    func windowDidResize(notification: NSNotification) {
        //listen the event
    }

}

then you should set the delegate property，set MainWindowController.xib include file window's delegate property to File's Owner.