如何从WPF applicatioin使用WMI让电池充电状态？ [英] How to get Battery charging status from WPF applicatioin using WMI?

问题描述

我试图让充电％，而正是在Windows显示相同的文字 - 不充电，充满电，充电

I'm trying to get charging percent, and exactly the same text that is Windows showing - Not Charging, Full Charged, Charging

我使用WMI查询。

我不想硬code的文本，因为它每一次的工作不同。 有时，它显示95百分比不充电，也可以充电。

I don't want to hard-code that texts, because it's working differently every time. Sometimes it's showing 95 percent- Not Charging, or can be Charging.

有没有办法得到这一结果的文本？

Is there any way to get that result text?

我能做些什么，只是为了检查，如果它是100％的充电，显示充满电。

What I can do, just to check if it is 100 percent charged, to display Full Charged.

但对于96％，这是不同的工作，有时Windows显示带电或不充电

But for 96 percent, it is working differently, sometimes Windows display Charged, or Not Charging

推荐答案

使用的 Win32_Battery 类：

static string GetBatteryStatus() {
    ManagementScope scope = new ManagementScope("//./root/cimv2");
    SelectQuery query = new SelectQuery("Select BatteryStatus From Win32_Battery");
    using(ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query)) {
        using(ManagementObjectCollection objectCollection = searcher.Get()) {
            foreach(ManagementObject mObj in objectCollection) {
                PropertyData pData = mObj.Properties["BatteryStatus"];
                switch((Int16)pData.Value) { 
                    //...
                    case 2:return "Not Charging";
                    case 3:return "Fully Charged";
                    case 4:return "Low";
                    case 5: return "Critical";
                    //...
                }
            }
        }
    }
    return string.Empty;
}

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