Arguments and changing the value - c#-4.0

Question

A newbie, please excuse the terms and explanation.
I have a program that accepts arguments which are in seconds. This in turn runs a timer that shows on the form. I want to give the user the ability to pause the timer for a set amount of time. I am having difficulty in trying to add time after the user Clicks the button as the method that runs the timer and countdown I have a method that gets the parameters of the argument.
I would like to maybe just get the parameters/arguments globally and then use them in all the different methods or threads. I am trying to do this in c# and wpf.
Code below:
public partial class MainWindow : Window
{
//int TimeOutPeriod = Int32.Parse("3600");
//private Timer timer;
System.Timers.Timer timer = new System.Timers.Timer();
public MainWindow()
{
InitializeComponent();
//timer = new Timer(1000);
timer = new System.Timers.Timer(1000);
timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
timer.Start();
string[] param = Environment.GetCommandLineArgs();
int TimeOutPeriod = Int32.Parse(param[1]);
ProgressBar1.Maximum = TimeOutPeriod;
}
void timer_Elapsed(object sender, ElapsedEventArgs e)
{
string [] param = Environment.GetCommandLineArgs();
int TimeOutPeriod = Int32.Parse(param[1]);
int InYourFaceDisplay = Int32.Parse(param[2]);
this.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Normal, (Action)(() =>
{
if (ProgressBar1.Value < TimeOutPeriod)
{
ProgressBar1.Value += 1;
RebootCDown.Content = "Machine will reboot in : " + (TimeOutPeriod - ProgressBar1.Value) + " Secs";
if ((TimeOutPeriod - ProgressBar1.Value) < InYourFaceDisplay)
{
this.Activate();
}
}
else
{
ShutDownWindows("0");
timer.Stop();
this.Close();
}
}));
}
private void SnoozeNow_Click(object sender, RoutedEventArgs e)
{
WindowState = WindowState.Minimized;
System.Windows.Forms.NotifyIcon ni = new System.Windows.Forms.NotifyIcon();
ShowInTaskbar = false;
ni.Icon = new System.Drawing.Icon("C:\\temp\\RebootIco.ico");
ni.Visible = true;
ShowInTaskbar = false;
ni.ShowBalloonTip(5000, "Test App", "Notify icon is working! Right click to access the context menu.", System.Windows.Forms.ToolTipIcon.Info);
Task.Delay(10000);
ShowInTaskbar = true;
}
}