public static extern uint CallNtPowerInformation(
PowerInformationLevel InformationLevel,
IntPtr lpInputBuffer,
int nInputBufferSize,
ref SystemBatteryState lpOutputBuffer,
int nOutputBufferSize
);
public SystemBatteryState GetSystemBatteryState()
{
var sbs = new SystemBatteryState();
uint retval = PowerManagementInterop.CallNtPowerInformation(
PowerInformationLevel.SystemBatteryState,
IntPtr.Zero,
0,
ref sbs,
Marshal.SizeOf(sbs));
if (retval != statusSuccess)
{
throw new Exception("GetSystemBatteryState not success");
}
return(sbs);
}