Possible Duplicate:
How do I connect to a USB webcam in .NET?
I just got a USB camera and have to write code in order to get the image/video stream.
What I'm not understanding is how to open the USB port like uart/rs232 and send/receive the data?
And one more thing, is what is HID (usb hid) and why we need it?
I found a couple of examples here but I'm not understanding the concept.