How to detect whether Windows is shutting down or restarting

Question

I know that when Windows is shutting down, it sends a WM_QUERYENDSESSION message to each application. This makes it easy to detect when Windows is shutting down. However, is

Answer 1

Possible experimental solution for Windows7 could be the following. (I'm not sure if this works well with other localizations, therefore I would call it a workaround)

using System.Diagnostics.Eventing.Reader;

namespace MyApp
{
public class RestartDetector : IDisposable
{
    public delegate void OnShutdownRequsted(bool restart);
    public OnShutdownRequsted onShutdownRequsted;

    private EventLogWatcher watcher = null;

    public RestartDetector()
    {
        try
        {
            EventLogQuery subscriptionQuery = new EventLogQuery(
                "System", PathType.LogName, "*[System[Provider[@Name='USER32'] and (EventID=1074)]]");

            watcher = new EventLogWatcher(subscriptionQuery);

            // Make the watcher listen to the EventRecordWritten
            // events.  When this event happens, the callback method
            // (EventLogEventRead) is called.
            watcher.EventRecordWritten +=
                new EventHandler(
                    EventLogEventRead);

            // Activate the subscription
            watcher.Enabled = true;
        }
        catch (EventLogReadingException e)
        {
        }
    }

    public void EventLogEventRead(object obj, EventRecordWrittenEventArgs arg)
    {
        bool restart = false;
        try
        {
            // Make sure there was no error reading the event.
            if (arg.EventRecord != null)
            {
                String[] xPathRefs = new String[1];
                xPathRefs[0] = "Event/EventData/Data";
                IEnumerable xPathEnum = xPathRefs;

                EventLogPropertySelector logPropertyContext = new EventLogPropertySelector(xPathEnum);
                IList