Duplicate camera stream

I need to make a program that would allow me to capture camera stream with my 2 other programs simultaneously. Basically I need the functionality that ManyCams (http:/开发者_如何学JAVA/www.manycam.com/) offers.

How can I do this? I'm interested in a free c++ library, or some C#/C++ .net solution.

well, one easy step will be "share" rather than "duplicate" camera streams, your application can capture camera streams then provide api to share it between multiple applications. OpenCV worth a look.

I'm not sure but you probably need to have good understanding of how hardware work and know how to develop a driver for it. What you should do is to get the graphic from usb device's driver and use what you get from your camera as input source for your own virtual camera drivers.