If you're using timers to track events and to make sure messages arrive in a timely manner, it's important to cancel these timers when a message is received.
如果您使用计时器跟踪事件，以确保消息及时到达，重要的是要在收到消息后取消这些计时器。
Lastly, a timer can be canceled by sending a control message with the "cancel" action.
最后，可以通过发送具有“CANCEL”操作的控制消息来取消计时器。
A message can be displayed to the user if the required fields aren't populated and false can be returned to cancel the update to the panel.
如果未填充必要的字段，则可以向用户显示一条消息，并返回False取消对面板的更新。
If the message box has no Cancel button, pressing ESC has no effect.
如果消息框没有消息按钮，按下esc键将不会产生效果。
Cancel the shutdown process just by pressing a button on the warning message box.
取消关机过程只需按下一个按钮的警告消息框。
The prompt message box, which includes OK and Cancel buttons, provides a text field that accepts text in response to a prompt.
提示消息框包含“确定”和“取消”按钮，提供的文本字段接受响应提示的文本。
The prompt message box, which includes OK and Cancel buttons, provides a text field that accepts text in response to a prompt.
提示消息框包含“确定”和“取消”按钮，提供的文本字段接受响应提示的文本。
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