在objective-c中使用CGEvent的关键组合

Question

我试图通过软件按Ctrl +右箭头（这应该将我的窗口切换到右侧窗口）键组合。我正在使用CGEvents按Ctrl键然后按向右箭头键（仍然按下Ctrl键），但我的窗口没有改变。

//
//  main.m
//
#import <Cocoa/Cocoa.h>
// CGEvent functions
#import <ApplicationServices/ApplicationServices.h>

// kVK_* values
#import <Carbon/Carbon.h>

int main(int argc, const char * argv[]) {
    int virtualKeys[] = {kVK_Control, kVK_RightArrow };
    CGEventSourceRef sourceRef = CGEventSourceCreate(kCGEventSourceStateHIDSystemState);

    // press the Ctrl key
    CGEventRef event = CGEventCreateKeyboardEvent(sourceRef, virtualKeys[0], true);
    CGEventPost(kCGHIDEventTap, event);

    // press the right arrow key
    CGEventRef event2 = CGEventCreateKeyboardEvent(sourceRef, virtualKeys[1], true);
    CGEventPost(kCGHIDEventTap, event2);

    // wait .1 seconds
    usleep(100000);

    // release the right arrow key
    event2 = CGEventCreateKeyboardEvent(NULL, virtualKeys[1], NO);
    CGEventPost(kCGHIDEventTap, event2);
    CFRelease(event2);

    // release the ctrl key
    event = CGEventCreateKeyboardEvent(NULL, virtualKeys[0], NO);
    CGEventPost(kCGHIDEventTap, event);
    CFRelease(event);
}

此代码通过xcode运行。