在OSX Cocoa中接收笔记本电脑电源线打开/关闭的通知

#import <Foundation/Foundation.h>
#import <IOKit/ps/IOPowerSources.h>
#import <IOKit/ps/IOPSKeys.h>

void powerSourceChanged(void *context);

CFRunLoopSourceRef powerSourceRunLoopSource = IOPSNotificationCreateRunLoopSource(powerSourceChanged, NULL);
CFRunLoopAddSource(CFRunLoopGetCurrent(), powerSourceRunLoopSource, kCFRunLoopDefaultMode);
CFRelease(powerSourceRunLoopSource);

void powerSourceChanged(void *context) {
    CFTypeRef powerInfo = IOPSCopyPowerSourcesInfo();
    CFArrayRef powerSources = IOPSCopyPowerSourcesList(powerInfo);

    for (CFIndex i = 0; i < CFArrayGetCount(powerSources); i++) {
        CFTypeRef powerSource = CFArrayGetValueAtIndex(powerSources, i);
        CFDictionaryRef powerSourceInfo = IOPSGetPowerSourceDescription(powerInfo, powerSource);

        // 获取电源状态
        CFStringRef powerSourceType = CFDictionaryGetValue(powerSourceInfo, CFSTR(kIOPSTypeKey));
        if (CFStringCompare(powerSourceType, CFSTR(kIOPSACPowerValue), 0) == kCFCompareEqualTo) {
            NSLog(@"电源线已连接");
            // 执行相关操作
        } else if (CFStringCompare(powerSourceType, CFSTR(kIOPSBatteryPowerValue), 0) == kCFCompareEqualTo) {
            NSLog(@"电源线已断开");
            // 执行相关操作
        }
    }

    CFRelease(powerSources);
    CFRelease(powerInfo);
}