以编程方式把Mac进入睡眠 [英] Programmatically put a Mac into sleep

问题描述

我找不到任何指令如何将一个Mac以编程方式进入休眠模式（在Objective-C）。

I can't find any instructions how to put a Mac programmatically into sleep mode (in Objective-C). I'm sure it should be only one line, but could you give me a hint?

推荐答案

SendAppleEventToSystemProcess(kAESleep);

OSStatus SendAppleEventToSystemProcess(AEEventID EventToSend)
{
    AEAddressDesc targetDesc;
    static const ProcessSerialNumber kPSNOfSystemProcess = { 0, kSystemProcess };
    AppleEvent eventReply = {typeNull, NULL};
    AppleEvent appleEventToSend = {typeNull, NULL};

    OSStatus error = noErr;

    error = AECreateDesc(typeProcessSerialNumber, &kPSNOfSystemProcess, 
                                            sizeof(kPSNOfSystemProcess), &targetDesc);

    if (error != noErr)
    {
        return(error);
    }

    error = AECreateAppleEvent(kCoreEventClass, EventToSend, &targetDesc, 
                   kAutoGenerateReturnID, kAnyTransactionID, &appleEventToSend);

    AEDisposeDesc(&targetDesc);
    if (error != noErr)
    {
        return(error);
    }

    error = AESend(&appleEventToSend, &eventReply, kAENoReply, 
                  kAENormalPriority, kAEDefaultTimeout, NULL, NULL);

    AEDisposeDesc(&appleEventToSend);
    if (error != noErr)
    {
        return(error);
    }

    AEDisposeDesc(&eventReply);

    return(error); 
}

有关 http://developer.apple.com/library/mac/#qa/qa1134/_index.html

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