有没有人有幸在OS X上用CGEventCreateKeyboardEvent模拟Caps Lock keystroke?基本上我已尝试字母字符和字母数字字符好,但大写锁定。希望我想模拟大写锁定按键来打开/关闭LED。我不知道我的测试代码有什么问题。有没有人有过这样的经历?如何在OS X中使用CGEventCreateKeyboardEvent来模拟大写锁定击键操作
#include <stdio.h>
#include <ApplicationServices/ApplicationServices.h>
main()
{
bool wasCapsLockDown = CGEventSourceKeyState(kCGEventSourceStateHIDSystemState, 57);
if (wasCapsLockDown)
printf("On\n");
else
printf("Off\n");
ProcessSerialNumber psn;
GetFrontProcess(&psn);
CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateHIDSystemState);//CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
CGEventRef CapsLockDown = CGEventCreateKeyboardEvent(source, (CGKeyCode)57, true);
//CGEventFlags modifiers = 0;
//modifiers |= kCGEventFlagMaskAlphaShift;
//CGEventSetFlags(CapsLockDown, modifiers);
CGEventRef CapsLockUp = CGEventCreateKeyboardEvent(source, (CGKeyCode)57, false);
// simulate capslock down
CGEventPost(kCGHIDEventTap, CapsLockDown);
// simulate capslock up
CGEventPost(kCGHIDEventTap, CapsLockUp);
//CGEventPost(kCGAnnotatedSessionEventTap, CapsLockDown); /* doesn't work */
//CGEventPost(kCGAnnotatedSessionEventTap, CapsLockUp);
//CGEventPost(kCGSessionEventTap, CapsLockDown); /* doesn't work */
//CGEventPost(kCGSessionEventTap, CapsLockUp);
//CGEventPostToPSN(&psn, CapsLockDown); /* doesn't work */
//CGEventPostToPSN(&psn, CapsLockUp);
CFRelease(CapsLockUp);
CFRelease(CapsLockDown);
CFRelease(source);
}
编译如下命令
gcc test.c -framework ApplicationServices
与此相同,http://stackoverflow.com/q/2334022/236738 – MacGeek