private void Window_Loaded(object sender, RoutedEventArgs e)
{
if (Current != null)
{
// if old instance exists, close the new instance
this.Close();
String errMsg = "Timer is already active!\nPress OK to go to the Timer Window";
System.Windows.MessageBox.Show(errMsg, "Paint Night", System.Windows.MessageBoxButton.OK, MessageBoxImage.Error);
if (!Current.IsActive)
{
Current.Activate();
}
if (!Current.IsFocused)
{
Current.Focus();
}
}
else
{
// a new instance
Current = this;
}
dt.Interval = TimeSpan.FromSeconds(1);
dt.Tick += Dt_Tick;
printTime();
}
private void Window_Closed(object sender, EventArgs e)
{
// If user closes the window -- this is the new instance, Current is the old one
if ((Current == this) && (Current != null))
{
Current = null;
}
dt.Stop();
}
private void btnTimer_Click(object sender, RoutedEventArgs e)
{
tw = new TimerWindow();
tw.Show();
}