/// <summary>
/// Gets the status of battery.
/// </summary>
/// <returns>Battery status.</returns>
/// <exception cref="PowerManagerException">
/// Call to native API has raised an error.
/// </exception>
public BatteryStatus GetBatteryStatus()
{
bool systemPowerStatus = false;
BatteryStatus batteryStatus = new BatteryStatus();
try
{
SystemPowerStatus powerStatus = new SystemPowerStatus();
//Get BatteryLifePercent and BatteryFlag values
systemPowerStatus =
(PowerManagementNativeMethods.GetSystemPowerStatus(out powerStatus));
batteryStatus.BatteryLifePercent = powerStatus.BatteryLifePercent;
batteryStatus.BatteryFlag = (BatteryFlag)powerStatus.BatteryFlag;
if ((powerStatus.BatteryFlag & (byte)BatteryFlag.Charging) ==
(byte)BatteryFlag.Charging)
{
batteryStatus.Charging = true;
}
else
{
batteryStatus.Charging = false;
}
if ((powerStatus.BatteryFlag & (byte)BatteryFlag.NoSystemBattery) ==
(byte)BatteryFlag.NoSystemBattery)
{
batteryStatus.BatteryPresent = false;
}
else
{
batteryStatus.BatteryPresent = true;
}
}
catch (Exception exception)
{
throw new PowerManagerException(exception.Message, exception);
}
if (!systemPowerStatus)
{
throw new PowerManagerException(PowerManagementResource.Win32ErrorCodeMessage
+ Marshal.GetLastWin32Error());
}
return batteryStatus;
}
internal static extern bool GetSystemPowerStatus(
out SystemPowerStatus sysPowerStatus);
internal static extern bool GetSystemPowerStatus(
out SystemPowerStatus sysPowerStatus);