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c#windowssleep-modehibernate-mode

How can I know when Windows is going into/out of sleep or Hibernate mode?

Is it possible to subscribe to a Windows event that fires when Windows is going into or coming out of Sleep or Hibernate state?

I need my application to be made aware when the computer is going to sleep to do some cleanup and avoid timing issues when it comes out of sleep.

Solution

  • Microsoft.Win32.SystemEvents.PowerModeChanged event will give you this information. This event is available in all variants of the .NET framework released by Microsoft so far.