如何在Catalina (10.15)上以编程方式启动键盘？

#import <Foundation/Foundation.h>
#import <ApplicationServices/ApplicationServices.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        // 获取键盘服务
        CFMachPortRef eventTap = CGEventTapCreate(kCGSessionEventTap,
                                                  kCGHeadInsertEventTap,
                                                  kCGEventTapOptionDefault,
                                                  kCGEventMaskForAllEvents,
                                                  NULL,
                                                  NULL);
        if (!eventTap) {
            NSLog(@"无法创建事件监听");
            return 1;
        }
        
        // 创建事件源
        CFRunLoopSourceRef runLoopSource = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, eventTap, 0);
        CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopCommonModes);
        
        // 启动事件循环
        CGEventTapEnable(eventTap, true);
        CFRunLoopRun();
        
        // 清理资源
        CFRelease(eventTap);
        CFRelease(runLoopSource);
    }
    return 0;
}