如何在基于MFC对话框的应用程序中使用计时器? [英] How to Use Timer in MFC Dialog based Application?

问题描述

我正在Visual Studio 2008中开发基于MFC对话框的应用程序.我想使用在应用程序启动时启动并继续运行并调用执行我的任务的函数的计时器吗?我该怎么办?

I am developing MFC Dialog based application in Visual Studio 2008. I want to use timer that start on start of the application and continue to run and calls a function that performs my task? How can I do this?

谢谢

推荐答案

只需使用SetTimer方法，并传递两个参数:计时器ID(任意数字)和超时(以毫秒为单位).然后编写OnTimer实现，并在BEGIN_MESSAGE_MAP...END_MESSAGE_MAP内写一个条目ON_WM_TIMER.

Just use SetTimer method, and pass two arguments: Timer ID (any number), and the timeout in milliseconds. Then write up OnTimer implementation, and an entry ON_WM_TIMER inside BEGIN_MESSAGE_MAP...END_MESSAGE_MAP.

CWnd :: SetTimer 接受3个参数，但仅需要2个.将第三个参数传递为NULL.

CWnd::SetTimer takes 3 parameters, but only 2 are required. Pass third argument as NULL.

CWnd :: OnTimer

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