How to show context menu from NSButton in macOS

func showQuitMenu() { let menu = NSMenu() let aboutItem = NSMenuItem( title: "About", action: #selector(onAboutTouched(_:)), keyEquivalent: "" ) let quitItem = NSMenuItem( title: "Quit Hacker Pad", action: #selector(onQuitTouched(_:)), keyEquivalent: "" ) aboutItem.target = self quitItem.target = self menu.addItem(aboutItem) menu.addItem(quitItem) menu.popUp( positioning: aboutItem, at: bottomView.quitButton.frame.origin, in: bottomView ) } 

let menuHandler = MenuHandler() menuHandler.add(title: "About", action: { NSWorkspace.shared.open(URL(string: "https://onmyway133.github.io/")!) }) menuHandler.add(title: "Quit Hacker Pad", action: { NSApp.terminate(nil) }) menuHandler.show(from: self.bottomView.gearButton, in: self.bottomView)