I did not see your search, but you either looked in wrong place, and, most likely, used too narrow search criteria. If you are using C++/CLI, the article or answer using any CLI language would suite you; note that most publications are written using C#. Also, you need to understand that "embedded camera" is just one of the Web (or USB) cameras installed; normally, you list all installed cameras and pick one for your operations. Also, the mode when you watch video from camera is often called "preview"; this is the way it is documented in camera APIs and other places.
CodeProject-only search gave me 4312 matches: http://www.codeproject.com/search.aspx?q=preview+video+Web+camera+%28%22.NET%22+OR+%22C%23%22+OR+%22VB.NET%22+OR+%22C%2b%2b%2fCLI%22%29&doctypeid=1%3b2%3b3%3b13%3b14
From the other hand, it would be good to limit your search with certain UI framework/library: what is it, WPF,
or something else? It would make the major difference. You can also limit you CodeProject search to articles.