Comment 28 for bug 538449

This bug was as far as I understand it created because switching between different Windows of the same application is not as fast and as no-brain as it could be. The current way to do this is via text, the only thing that distinguishes two windows from each other on a right click is the title.

The problem from a technical perspective as I understand it is to get that image of each window. What interface can provide that information that works across all situations where Docky is deployed.