CGEventRef sDown, sUp;
sDown = CGEventCreateKeyboardEvent (
			NULL,
			(CGKeyCode)1,
			<strong>true</strong>
);
<strong class="red">CGEventSetFlags(sDown, kCGEventFlagMaskShift);</strong>  
 
// setting flags with special function. 
<em>// Setting it via CGCreateKeyboardEvent
// would work only for the first time it's run</em>
 
CGEventPost(kCGHIDEventTap, sDown);
 
sUp = CGEventCreateKeyboardEvent (
			NULL,
			(CGKeyCode)1,
			<strong>false</strong>
);
CGEventPost(kCGHIDEventTap, sUp);
 
CFRelease(sDown);
CFRelease(sUp);

CGEventRef mouseEvent;
mouseEvent = CGEventCreateMouseEvent (
			NULL,
			kCGEventMouseMoved,
			CGPointMake(100, 100),
			kCGMouseButtonLeft
);
CGEventPost(kCGHIDEventTap, mouseEvent );

CGPostKeyboardEvent (0,5,true);
CGPostKeyboardEvent (0,5,false);