def SendKey(self, key: int, waitTime: float = OPERATION_WAIT_TIME) -> None:
self.SetFocus()<EOL>SendKey(key, waitTime)<EOL>
Make control have focus first and type a key.
`self.SetFocus` may not work for some controls, you may need to click it to make it have focus.
key: int, a key code value in class Keys.
waitTime: float.