title: Accessing the Main thread with the callback
body: <p>I have a program in C# that connects to a server using a DuplexChannelFactory, and that server can call methods from client side by callback, the problem is that I have no idea how to access the Main Thread were the connection was created from the callback methods. Is there any way to do this, by means of passing an object, or do I have to implement an additional communication layer (BD, files, whatever)?</p>
  
  <p>Hope this was not much confusing.</p>
  
  <p>Thanks in advance.</p>