cocoa - 如何在 Mac OSX 中模拟 ctrl+up？

Question

我正在尝试模拟键盘输入Ctrl + Up来打开任务控制，并引用了这里的代码:

https://stackoverflow.com/a/10745616/8556692

#import <Cocoa/Cocoa.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSLog(@"Open Mission Control");
        CGEventSourceRef src =
          CGEventSourceCreate(kCGEventSourceStateHIDSystemState);

        CGEventRef ctrld = CGEventCreateKeyboardEvent(src, 0x3B, true);
        CGEventRef ctrlu = CGEventCreateKeyboardEvent(src, 0x3B, false);
        CGEventRef upd = CGEventCreateKeyboardEvent(src, 0x7E, true);
        CGEventRef upu = CGEventCreateKeyboardEvent(src, 0x7E, false);

        CGEventSetFlags(upd, kCGEventFlagMaskControl);
        CGEventSetFlags(upu, kCGEventFlagMaskControl);

        CGEventTapLocation loc = kCGHIDEventTap; // kCGSessionEventTap also works
        CGEventPost(loc, ctrld);
        CGEventPost(loc, upd);
        usleep(20000);
        CGEventPost(loc, upu);
        CGEventPost(loc, ctrlu);

        CFRelease(ctrld);
        CFRelease(ctrlu);
        CFRelease(upd);
        CFRelease(upu);
        CFRelease(src);
    }
    NSLog(@"Done");
    return 0;//NSApplicationMain(argc, argv);
}

但是失败了。

我尝试用这段代码来模拟Cmd+Space(0x38 + 0x31 + Command Mask)，成功了一次，我想我的代码一定有问题......

Answer 1

我也遇到了这个问题。除 kCGEventFlagMaskControl 之外的所有标志(kCGEventFlagMaskCommand、kCGEventFlagMaskShift)均有效。我添加了 kCGEventFlagMaskSecondaryFn ，如下所示 Simulated key command not working since OS upgrade现在可以了。

CGEventSetFlags(upd, kCGEventFlagMaskControl | kCGEventFlagMaskSecondaryFn);
CGEventSetFlags(upu, kCGEventFlagMaskControl | kCGEventFlagMaskSecondaryFn);