Howto capture VIDEO, not only acquire a single image from a usb we

[Guest]

We need to access to a webcam in .net c#

We need to show the video in a form from a web cam, and when push a buttom
record it to a file .....

How can we do it ??

Samples on google (c# webcam) show only how to acquire one single image, no
record video to a file

Thanks a lot

 

[Vadym Stetsyak]

at fist you need to get acquainted with the technologies available for you.
AFAIK there are 2 of them VfW and DirectX.

First one is rather old, it is better not to use it.
About the second one you can read here:

( http://msdn.microsoft.com/msdnmag/ issues/02/07/DirectShow/default.aspx )

In brief you will have to create custom or use standard filter in the
filter graph.

All this involves COM-based knowledge...