如何在 CWinApp 中获取 WM_POWERBROADCAST 消息?

How to get WM_POWERBROADCAST message in CWinApp?(如何在 CWinApp 中获取 WM_POWERBROADCAST 消息?)

问题描述

我创建了继承CWinApp的类，这个类有一个定时器(使用窗口定时器).

I create the class that inherited CWinApp and this class has a timer (use a window timer).

当 PC 进入睡眠模式并唤醒时，定时器回调称为唤醒的确切时间.当PC从挂起恢复时，我想不调用定时器回调.

When PC go sleep mode and wake-up, timer callback is called exact time of wake-up. I want to make to not call the timer callback when PC is resuming from suspend.

所以我尝试使用 WM_POWERBROADCAST 消息.但是此消息没有在 PreTranslateMessage() API 中捕获.我也尝试了 SetWindowLong() 与我自己的 API，但仍然没有捕捉到 WM_POWERBROADCAST 消息.

So I tried to use WM_POWERBROADCAST message. But this message didn't catch in PreTranslateMessage() API. Also I tried SetWindowLong() with my own API but still didn't catch the WM_POWERBROADCAST message.

有没有办法在CWinApp中获取WM_POWERBROADCAST?

推荐答案

在 Visual Studio C++ MFC 应用程序中，您需要将 ON_MESSAGE() 添加到消息映射中以查找 WM_POWERBROADCAST 消息如本例:

In a Visual Studio C++ MFC application you will need to add an ON_MESSAGE() to your message map looking for the WM_POWERBROADCAST message as in this example:

BEGIN_MESSAGE_MAP(CFrameworkWndApp, CWinApp)
    //{{AFX_MSG_MAP(CFrameworkWndApp)
    ON_WM_CHAR()
    ON_WM_TIMER()
    /