Mac应用程序中拦截命令退出？ [英] Intercept Command-Quit in Mac App?

问题描述

我想为Mac（Mavericks）制作一个不处理命令退出选项的应用程序。

I would like to make an app for Mac (Mavericks) that does not handle the command-quit option.

我找到了以下解决方案，但它必须是因为我收到错误：

I found the following solution but it must be out of date because I get an error:

    CFMachPortRef eventTap = CGEventTapCreate(kCGHIDEventTap,
                                          kCGHeadInsertEventTap,
                                          kCGEventTapOptionDefault,
                                          CGEventMaskBit(kCGEventKeyDown),
                                          &KeyDownCallback,
                                          NULL);

CFRunLoopSourceRef runLoopSource = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, eventTap, 0);
CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopCommonModes);
CFRelease(runLoopSource);
CGEventTapEnable(eventTap, true);

另一种方法？感谢。

推荐答案

只要让应用程式委托代码实作 applicationShouldTerminate： 方法：

Just have your application delegate implement the applicationShouldTerminate: method:

- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
{
    // work out whether to actually quit or not
    BOOL shouldQuit = /* insert logic here */;
    if (shouldQuit)
        return NSTerminateNow;
    else
        return NSTerminateCancel;
}

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