private void OnNewTag(string tag)
{
// from https://msdn.microsoft.com/en-us/library/w369ty8x.aspx
// Make a temporary copy of the event to avoid possibility of
// a race condition if the last subscriber unsubscribes
// immediately after the null check and before the event is raised.
EventHandler <NewTagEventArgs> handler = NewTagEvent;
// Event will be null if there are no subscribers
if (handler != null)
{
NewTagEventArgs e = new NewTagEventArgs(tag);
handler(this, e);
}
}
private void Login(object sender, NewTagEventArgs e)
{
this.Invoke((MethodInvoker) delegate { this.LoginMain(e.Tag); });
}