How to detect when laptop power cable has been disconnected?

Question

For the umpteenth time my laptop just shut down in the middle of my game because my power cable had disconnected without me noticing it.

Now I want to write a little

Answer 1

Here, is a little solution: using C# windows form application,

PowerStatus powerStatus = SystemInformation.PowerStatus;

if (powerStatus.PowerLineStatus == PowerLineStatus.Online)
{
    MessageBox.Show("Running On Power", Convert.ToString(powerStatus.BatteryLifePercent * 100) + "%");
}
else
{
    MessageBox.Show("Running On Battery", Convert.ToString(powerStatus.BatteryLifePercent * 100) + "%");
}

Hope, you got the idea, now you can use it in any way,...........