Swift NSEvent不起作用 [英] Swift NSEvent not working

问题描述

下面是我的简单 AppDelegate.swift 类.

//  AppDelegate.swift

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {

    func applicationDidFinishLaunching(aNotification: NSNotification) {
        NSEvent.addGlobalMonitorForEventsMatchingMask(NSEventMask.KeyDownMask, handler: keyDown);
    }

    func keyDown(event:NSEvent!) {
        print("key down is \(event.keyCode)");
    }

}

为什么不打印按键事件?我想念什么? 我已经尝试过搜索，但是找不到.

How come key down events are not being printed? What am I missing? I've tried searching around but can't figure it out.

推荐答案

根据addGlobalMonitorForEventsMatchingMask:handler:上的NSEvent.h:

仅在启用辅助功能的情况下，才可以监视与键有关的事件 或者您的应用程序是否受访问权限的信任(请参阅 AXUIElement.h中的AXIsProcessTrusted).请注意，您的处理程序不会 被发送到您自己的应用程序的事件被调用.

Key-related events may only be monitored if accessibility is enabled or if your application is trusted for accessibility access (see AXIsProcessTrusted in AXUIElement.h). Note that your handler will not be called for events that are sent to your own application.

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