在 Windows 中捕获笔记本电脑盖关闭事件？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/4486674/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Capturing laptop lid closing event in windows?
提问by Bear of the Year
I am looking for a way to intercept the laptop lid closing event. In windows 7, the power management allows me to select a desired behavior when the lid is closed. So there must be a way windows knows when the lid is closed.
我正在寻找一种方法来拦截笔记本电脑盖关闭事件。在 Windows 7 中，电源管理允许我在关闭盖子时选择所需的行为。所以一定有办法让窗户知道盖子什么时候合上。
I did my research, but only found suggestions to monitor the sleep event. I would like to be more specific to only respond to lid closing.
我做了我的研究，但只找到了监测睡眠事件的建议。我想更具体地只响应盖子关闭。
Does anyone have a suggestion?
有人有建议吗？
Thanks!
谢谢！
采纳答案by Samuel Neff
You can register for notification when the lid is shut with RegisterPowerSettingNotification.
当盖子关闭时，您可以注册通知RegisterPowerSettingNotification。
AnswerLid Close Action change notification
AnswerLid 关闭操作更改通知
In Vista you can register for a callback for when the Lid Close Action changes. This is done by calling RegisterPowerSettingNotification (see http://msdn2.microsoft.com/en-us/library/aa373196.aspxfor details). The GUID for this power setting you're interested in is GUID_LIDCLOSE_ACTION. This is defined in wdm.h in the Platform SDK.
Once registered, a WM_POWERBROADCAST will be sent to your application with wParam set to PBT_POWERSETTINGCHANGE. This event is sent anytime the value for the lid close action changes. The lParam contains a pointer to a POWERBROADCAST_SETTING structure (see http://msdn2.microsoft.com/en-us/library/aa372723.aspx) containing information on the setting change.
在 Vista 中，您可以注册盖子关闭操作更改时的回调。这是通过调用 RegisterPowerSettingNotification 完成的（有关详细信息，请参阅http://msdn2.microsoft.com/en-us/library/aa373196.aspx）。您感兴趣的此电源设置的 GUID 是 GUID_LIDCLOSE_ACTION。这在平台 SDK 的 wdm.h 中定义。
注册后，WM_POWERBROADCAST 将发送到您的应用程序，并将 wParam 设置为 PBT_POWERSETTINGCHANGE。每当盖子关闭操作的值发生变化时，就会发送此事件。lParam 包含一个指向 POWERBROADCAST_SETTING 结构的指针（参见http://msdn2.microsoft.com/en-us/library/aa372723.aspx），其中包含有关设置更改的信息。
回答by Stefan
The question refers to GUID_LIDSWITCH_STATE_CHANGE not to GUID_LIDCLOSE_ACTION.
问题是指 GUID_LIDSWITCH_STATE_CHANGE 而不是 GUID_LIDCLOSE_ACTION。
GUID_LIDCLOSE_ACTION monitors if the user changes the power behavior when the lid is closing (Control Panel -> Power Settings -> Choose what the close lid does)
GUID_LIDCLOSE_ACTION 监控用户是否在合上盖子时更改电源行为（控制面板 -> 电源设置 -> 选择合上盖子的作用）
If you want to monitor the event of lid close/open, you need to register for GUID_LIDSWITCH_STATE_CHANGE. I used it a Windows service:
如果要监控盖子关闭/打开的事件，则需要注册 GUID_LIDSWITCH_STATE_CHANGE。我使用它作为 Windows 服务：
int ServiceMain(int argc, char** argv)
{
serviceStatusHandle = RegisterServiceCtrlHandlerExA(serviceName, (LPHANDLER_FUNCTION_EX) ServiceControlHandler, 0);
...
lidcloseRegHandle = RegisterPowerSettingNotification(serviceStatusHandle, &GUID_LIDSWITCH_STATE_CHANGE, DEVICE_NOTIFY_SERVICE_HANDLE);
...
}
And in service control handler:
在服务控制处理程序中：
/**
* Event handler for windows service.
*/
void WINAPI ServiceControlHandler(DWORD controlCode, DWORD evtype, PVOID evdata, PVOID Context)
{
switch (controlCode)
{...
case SERVICE_CONTROL_POWEREVENT:
WriteToLog("Service Control: SERVICE_CONTROL_POWEREVENT builds and fwd the msg");
msg.control = SERVICE_CONTROL_POWEREVENT;
msg.event_type = (int) evtype;
msg.event_data = evdata;
...
}
}
evtype is PBT_POWERSETTINGCHANGE and in evdata you have the event logged: 0 for closed and 1 for opened.
evtype 是 PBT_POWERSETTINGCHANGE 并且在 evdata 中记录了事件：0 表示关闭，1 表示打开。
More details here: https://msdn.microsoft.com/en-us/library/aa372723.aspxhttps://msdn.microsoft.com/en-us/library/hh769082(v=vs.85).aspx
更多详细信息：https: //msdn.microsoft.com/en-us/library/aa372723.aspx https://msdn.microsoft.com/en-us/library/hh769082(v=vs.85).aspx
