Q:

Capture Live Video from various Video Devices

I am not sure where I have to start to create .NET application (C#) to "Capture Live Video from various Video Devices."
Any clue?

A:

There is a code project project that does what you are looking for using directx. 
http://www.codeproject.com/Articles/7123/Capture-Live-Video-from-various-Video-Devices

