How to work with projector and camera?
How can I work with projector and cam? How to work with output/input?
What you mean by:
Classic video camera.
I don’t know if I misunderstood your problem or not :}
Digital video cameras have various interfaces. Usually they could be treated as normal storage devices when connected to PC. So you can work with files and folders in memory of your device. AFAIK there is nothing “Magic” with digital cameras, usb sticks and so on…
If you mean interacting with device in way of using it, probably you should consider about using openCV and TWAIN. I’m not sure but I think most of manipulators don’t allow users to connect their products programmaticaly. Obviously you can not use their special features like zoom, focus and etc with a normal program. Contact manipulator to obtain softwares and libraries (if any) to gain ability of interacting with device.