C# Halting Windows Shutdown to run method

[ewokspy]

I have a C# windows application that runs with a form hidden and a system tray icon. Now I have read about WndProc and overriding that function to capture windows messages, but When I override it with this:

		protected override void WndProc(ref Message m)
		{
			
			// WM_QUERYENDSESSION
			if (m.Msg == 0x0011)
			{
				this.parentThreader.EndOfDayCheckout();
			}//end if

			base.WndProc(ref m);

		}//WndProc

the EndOfDayCheckou t() doesn't ever run. Now is there some special call or thread I need to set up to get EndProc to retrieve messages, or is there something else I need to get the system to halt shutdown until the method I call has finished?

[Plater]

Does your program close down too fast?
You might have have it spawn something to run that when it closes?

[ewokspy]

Does your program close down too fast?
You might have have it spawn something to run that when it closes?

Yes the program does seem to close down quite fast. The EndoFDayCheckou t is this:

		/// <summary>
		/// ************************************************************
		/// Name: EndOfDayCheckout
		/// 
		/// Description: This method sets the EndofDay flag to stop further
		///		DB inquiries, then gets the full list of print jobs from
		///		today, and populates them into the EndofDay form. Then
		///		displays the form.
		///	
		///	Input Parameters: None
		///	Output Parameters: None
		///	Returns: None
		///	Restrictions: None
		///	************************************************************ 
		/// </summary>
		public void EndOfDayCheckout()
		{
			//Ensure no further DB Calls are made by DB thread
			this.EndOfDay = true;

			//Do a final pull of the DB
			//Connect to Database
			PrintAlertDB = new DBConnect(this.Path);

			//Query DB for this user
			PrintAlertDB.LoadSQLTableReader(GetWindowsUserID());

			//Populate the Dataset
			frmEOD.PopulateGridWithJobs(PrintAlertDB.SQLTable);

			//Show the End of Day Form
			frmEOD.ShowDialog();
			frmEOD.Refresh();

		}//EndOfDayCheckout

So it supposed to perform a DB query, populate the data grid and display the form. Everything just shuts down though.

So what kind of spawn do I need to do?