从命令行锁定屏幕与OS X上的Keychain Access一样

我刚刚找到了解决方案:https://apple.stackexchange.com/a/123738/72534

#import <objc/runtime.h>
#import <Foundation/Foundation.h>

int main () {
    NSBundle *bundle = [NSBundle bundleWithPath:@"/Applications/Utilities/Keychain Access.app/Contents/Resources/Keychain.menu"];

    Class principalClass = [bundle principalClass];

    id instance = [[principalClass alloc] init];

    [instance performSelector:@selector(_lockScreenMenuHit:) withObject:nil];

    return 0;
}

另存为lockscreen.m并编译:

clang -framework Foundation -o lockscreen lockscreen.m

完美地工作,因为它只调用与状态栏图标相同的例程.