A demonstration network ink-chat application exploring some aspects of .NET 3.5, WPF and WCF.
At the highest level, DrawMe uses a client-server architecture with the server hosted on one of the client's computers. When a user starts DrawMe they are given the choice of creating a new server to locally host ink drawings, or connecting to an existing DrawMe server which can be either local or remote. When a user draws on the ink canvas, the drawing strokes are broadcast to all clients registered with the main DrawMe server. In this way users can participate in real-time collaborative drawing. Although this concept isn't new, the goal of this article was to see how easy this would be to implement using WPF and WCF.