[屏幕刷新率] 离奇变化 & 无辜log（出现频率：很低 1次）

```log
18:28:22.299 [Debug] #PowerSettingChange: Screen Power: true
18:28:22.299 [Debug] #Power: true
18:28:28.647 [Debug] #PowerSettingChange: Screen Power: false
19:08:15.073 [Debug] #Resume from sleep | hibernate
19:08:17.491 [Debug] #Resume from sleep | hibernate
19:08:17.533 [Debug] #PowerSettingChange: Screen Power: true
19:08:17.534 [Debug] #Power: true
19:08:17.583 [Debug] #PowerStatusChanged
19:08:17.584 [Debug] #Power: true
```
这是一段离奇的log
18:28:22 我打开屏幕
18:28:28 我手动休眠PC 准备回家 （此时还是360HZ刷新率）
19:08:15 到家 插电 开电脑 发现是60HZ刷新率

可以看到整段log里，没有修改刷新率的部分
而且 18:28:28 关闭PC时，Screen Power: false ，意味着屏幕关闭，也不会再去修改屏幕属性了
```cpp
else if(msg->wParam == PBT_APMPOWERSTATUSCHANGE){ //检测通断电 or 电量变化 具体需要手动检测
    qDebug() << "#PowerStatusChanged";
    if(isScreenOn) //息屏时操作屏幕可能导致问题
        emit powerSwitched(Win::isPowerOn());
}else if(msg->wParam == PBT_POWERSETTINGCHANGE){
    POWERBROADCAST_SETTING* pbs = (POWERBROADCAST_SETTING*)(msg->lParam);
    if (pbs->PowerSetting == GUID_MONITOR_POWER_ON){ // 显示器的电源设置（息屏/亮屏）
        isScreenOn = *(pbs->Data); // 获取显示器的电源状态
        qDebug() << "#PowerSettingChange: Screen Power:" << isScreenOn;
        if(isScreenOn)
            emit powerSwitched(Win::isPowerOn()); //等待亮屏再操作
    }
}
```
而且进入powerSwitched，修改屏幕属性前，一定会输出log：#Power: true/false
```cpp
connect(this, &Widget::powerSwitched, this, [=](bool isPowerOn, bool force) {
        qDebug() << "#Power:" << isPowerOn;
```
休眠/唤醒前后都没有修改刷新率的log，但是为什么刷新率变了！！
但是貌似MSI Center也没有设置修改刷新率啊！！
怎么回事
我记得Qt写log文件是同步的aaaa！
誰だ！

等一下 在早上10:07去开会，拔掉电源，切换为60HZ之后，log中居然没有插电(10:38)恢复360HZ的信息！
10:38插电之后触发了 #Set Brightness: 22 ，但是没有 Change Screen Reflash 这不科学！！
```text
10:07:30.350 [Debug] #PowerStatusChanged
10:07:30.350 [Debug] #Power: false
10:07:31.887 [Debug] #Change Screen Reflash Rate(API): 60 true 0
10:07:36.656 [Debug] #Set Brightness: 0
10:29:23.838 [Debug] #PowerSettingChange: Screen Power: false
10:38:04.066 [Debug] #PowerStatusChanged
10:38:05.059 [Debug] #Resume from sleep | hibernate
10:38:07.681 [Debug] #Resume from sleep | hibernate
10:38:08.104 [Debug] #PowerSettingChange: Screen Power: true
10:38:08.105 [Debug] #Power: true
10:38:09.606 [Debug] #Set Brightness: 22
...
11:18:24.512 [Debug] #PowerStatusChanged
11:18:24.512 [Debug] #Power: true
...
11:43:59.060 [Debug] #PowerSettingChange: Screen Power: false
12:12:59.754 [Debug] #PowerSettingChange: Screen Power: true
12:12:59.755 [Debug] #Power: true
...
14:09:21.964 [Debug] #PowerSettingChange: Screen Power: false
14:10:17.311 [Debug] #PowerSettingChange: Screen Power: true
14:10:17.312 [Debug] #Power: true
...
17:00:03.933 [Debug] #PowerSettingChange: Screen Power: false
17:00:14.256 [Debug] #PowerSettingChange: Screen Power: true
17:00:14.257 [Debug] #Power: true
17:53:47.723 [Debug] #PowerSettingChange: Screen Power: false
18:19:55.866 [Debug] #PowerSettingChange: Screen Power: true
18:19:55.866 [Debug] #Power: true
18:22:18.939 [Debug] #PowerSettingChange: Screen Power: false
18:28:22.299 [Debug] #PowerSettingChange: Screen Power: true
18:28:22.299 [Debug] #Power: true
18:28:28.647 [Debug] #PowerSettingChange: Screen Power: false
```
代码中，他俩是一起执行的，而且setScreenReflashRate在前
```cpp
setScreenReflashRate(screenSetting.reflash[isPowerOn], true, 1000);
Win::setBrightness(screenSetting.brightness[isPowerOn]);
```
而且在setScreenReflashRate()中，如果修改了刷新率，必然输出log
除非是 if (rate == (int)getCurrentScreenReflashRate()) return true;
```cpp
bool Win::setScreenReflashRate(int rate)
{
    if (rate < 0) return false;
    if (rate == (int)getCurrentScreenReflashRate()) return true;

DEVMODE lpDevMode;
    ...
    LONG ret = ChangeDisplaySettings(&lpDevMode, CDS_UPDATEREGISTRY); 
    //&保存于注册表 如果使用0，会导致Apex时有可能重置回60HZ（注册表
    qDebug() << "#Change Screen Reflash Rate(API):" << rate << (ret == DISP_CHANGE_SUCCESSFUL) << ret;
    return (ret == DISP_CHANGE_SUCCESSFUL);
}
```
那么就意味着，此时的刷新率已经是360HZ了，那么是谁改的，不是Follower，另有其人！
但是MSI Center的刷新率切换开关已经关了
而且关闭Follower后，断电也没有自动切换60HZ
18点由于不是Follower手动切换的刷新率，所以开机后也不会检测到hasPower != isPowerOn 进而不会修改刷新率 核理
但是为什么18点下班回家时刷新率会被改为60HZ呢？谁干的
总不可能是从开完会一直是60HZ吧，那也不对 首先是Follower肯定会切回来 其次是我肉眼也能看出来
！！Why 誰だ！

蔡姬/Follower v2.0

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蔡姬/Follower v2.0 .gitee-modal { width: 500px !important; }

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