The samples at http://www.ratajik.com/VisInterface/ show how to use the VisInterface classes.

The VisWrapper sample is a full application.  The VisSimple is VERY much a sample.. but it is the easiest to understand, as it only has a few lines of code to run visualizations against a set of data

Some points of interest in VisWrapper:

• A CSampleDataLoader class was derived from CVisDataLoader.  It will load the buffers with either a simple wave form or random data.
• At the bottom of LoadDLLList inside of the main Dialog, you can see how a Interface is created.
• Inside of the main Dialog (CVisWrapperDlg.cpp), when OnPbStart is selected, you can see how to start the Render thread, passing in the CVisInterface to use and the Data Loader (CSampleDataLoader, in this case).