Shutdown Display on Ignition Off

This article will describe how to shutdown the display when the Ignition Input is turned off as of version 4.x.

• In OpenPV from the Extensions tab add the IO Service Extension
• In your code base add the nuget package Ahsoka.Extensions.IO.
• Add the following code

using Ahsoka.Services.IO; //added to support ignition input
//In Main add the following
IOServiceClient IOClient = new();
// Listen to the IO Service Client for Ignition Input Messages
Dispatcher.Default.RegisterCallback<IOServiceClient.AhsokaNotificationArgs>(HandleIngition, IOClient);

//Add the following function
private static void HandleIngition(object sender, IOServiceClient.AhsokaNotificationArgs args)
{
  if (args is IOServiceClient.AhsokaNotificationArgs e)
  {
  //When the ignition input state changes Ahsoka will send a event message
    if (e.TransportId == IOMessageTypes.Ids.IgnitionOnNotification)
    {
    AhsokaLogging.LogMessage(AhsokaVerbosity.Medium, $"Ignition On");
    }
  else if (e.TransportId == IOMessageTypes.Ids.IgnitionOffNotification)
    {
    AhsokaLogging.LogMessage(AhsokaVerbosity.Medium, $"Ignition Off");
    //Send a system message to Reboot which will shutdown power but since the ign pin is
    //off it wont reboot and will stay off.
    SystemServiceClient systemClient = new();
    systemClient.RequestServiceShutdown(ShutdownTypes.Reboot);
    }
  }
}