问题
Can I stream a live video in WPF application from my web cam? If yes, then How?
回答1:
You will have to use DirectX Capture or something (is not in WPF right know, so use DirectX API's directly).
Look at: WPF Media Kit. It can grab the Vista Windows desktop manager DirectX Direct3D shared Surface, and use it as a visual brush in WPF. He does some nice things with it. Look at his blog where he explains it.
I hope this helps you on your way...
UPDATE 2009-11-06: The VideoRenderElement Codeplex project has an example on how to stream webcam content. This project looks like it would fit your requirment perfectly.
UPDATE 2013-02-18: Alternatively one can use the Expression Encoder SDK. For an example you can look at the WPF-Webcam-Control article on CodeProject
来源：https://stackoverflow.com/questions/412995/how-to-stream-webcam-in-wpf