I wrote a VB app that can power off my Samsung display and would like to trigger it when windows turns off my display (from the power management settings).   How can I hook it?

 Maybe the following c# snippet helps (I think the orginal code came from MSDN):

    class Program
    {
        static ManagementEventWatcher _watcher;
 
        static void Main(string[] args)
        {
            WqlEventQuery query = new WqlEventQuery("Win32_PowerManagementEvent");
            _watcher = new ManagementEventWatcher(query);
            _watcher.EventArrived += new EventArrivedEventHandler(watcher_Event);
            _watcher.Start();

           do something ..

         }

        static void watcher_Event(object sender, EventArrivedEventArgs e)
        {
                int eventType = Convert.ToInt32(e.NewEvent.Properties["EventType"].Value);
                switch (eventType)
                {
                    case 4:  // PBT_APMSUSPEND
                        ...
                        break;
                    case 18:  // PBT_APMRESUMEAUTOMATIC
                        // don't use PBT_APMRESUMESUSPEND because user isn't always present
                        ...
                        break;
                    case 7:  // PBT_APMRESUMESUSPEND
                        ...
                        break;
                    default:
                        ...
                        break;
                }
        }
 

absalom

Maybe the following c# snippet helps

Thanks!