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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 C# program that detects when my power cable disconnects and then emits a nice long System beep. What API could I use for that?
This should be trivial to implement using the SystemInformation.PowerStatus property. And even though that lives in Windows.Forms, it should be perfectly usable from a system service.
For a solution that also works on the Compact Framework, see HOWTO: Get the Device Power Status