Interprocess Communication with WCF - Part 2

In Part 1 I showed you how you can use WCF with named pipes to send messages from a client to a server. Now I will show you how we can modify that code to send messages in the other direction, from the server back to the client. We do this by creating a callback interface and referencing it in our service contract. We then implement the callback interface in our client.

Interprocess Communication with WCF - Part 1

With the introduction of Microsoft's Windows Communication Foundation from .NET 3.0 onwards we have been provided with a powerful framework for communicating across process boundaries, whether they are on the same machine, the same network or even across the internet. A huge range of configuration options are available for the many scenarios that WCF can be used as part of our solution and they can seem overwhelming to begin with.