xenadmin/XenAdmin/PowerManagment.cs

/* Copyright (c) Cloud Software Group, Inc. 
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using System.Diagnostics;
using System.Management;

namespace XenAdmin
{
    public static class PowerManagement
    {

        private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        public static bool CheckBatteryDischarging()
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_Battery");

                foreach (ManagementObject queryObj in searcher.Get())
                {
                    Debug.WriteLine("-----------------------------------");
                    Debug.WriteLine("Win32_Battery instance");
                    Debug.WriteLine("-----------------------------------");
                    Debug.WriteLine(string.Format("BatteryStatus: {0}", queryObj["BatteryStatus"]));
                    int result = 0;
                    if (int.TryParse(queryObj["BatteryStatus"].ToString(), out result))
                    {
                        if (result == 1)
                            return true;
                    }
                }
            }
            catch (ManagementException e)
            {
                log.Error("An error occurred while querying for WMI data: ",e);
            }

            return false;

        }
    }
}