以编程方式让Mac进入睡眠状态

Question

我找不到任何有关如何将Mac以编程方式置于睡眠模式的指令(在Objective-C中).我敢肯定它应该只有一行,但你可以给我一个提示吗？

Answer 1

#include <stdio.h> 
#include <CoreServices/CoreServices.h>
#include <Carbon/Carbon.h>

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); 
}

有关详细信息,请访问https://developer.apple.com/library/content/qa/qa1134/_index.html

Answer 2

您还可以使用脚本桥.草案代码是

SystemEventsApplication *systemEvents = [SBApplication applicationWithBundleIdentifier:@"com.apple.systemevents"];
[systemEvents sleep]; 

Answer 3

汤姆是对的.如果显示器处于休眠状态,AE方法将失败.pmset sleepnow 100%工作.

NSTask  *pmsetTask = [[NSTask alloc] init];
pmsetTask.launchPath = @"/usr/bin/pmset";
pmsetTask.arguments = @[@"sleepnow"];
[pmsetTask launch];

Answer 4

您可以使用AppleScript

NSAppleScript *script = [[NSAppleScript alloc] initWithSource:@"tell application \"System Events\" to sleep"];
NSDictionary *errorInfo;
[script executeAndReturnError:&errorInfo];
[script release];