func WaitKey(delay int) int {
	key := C.cvWaitKey(C.int(delay))
	return int(key)
}
func WaitKey(delay int) int {
	key := C.cvWaitKey(C.int(delay))
	return int(key)
}
func WaitKey ( delay int ) int { key := C . cvWaitKey ( C . int ( delay ) ) return int ( key ) }
/* wait for key event infinitely (delay<=0) or for "delay" milliseconds */
/ * wait for key event infinitely ( delay< = 0 ) or for delay milliseconds