gistfile1.c

  GSEventType eventType = GSEventGetType((GSEventRef)event);
  GSEventFlags modFlag = GSEventGetModifierFlags((GSEventRef)event);
  UniChar keyCode = GSEventGetKeyCode((GSEventRef)event);
  NSLog(@"----------event: %d", eventType);
  NSLog(@"----------modifier: %d", modFlag);
  NSLog(@"----------keycode: %d", keyCode);
  uint fCTRL  = (modFlag & 1048576) ? YES : NO;
  uint fSHIFT = (modFlag & 131072)  ? YES : NO;
  uint fALT   = (modFlag & 524288)  ? YES : NO;
  uint fCMD   = (modFlag & 65536) ? YES : NO;