Quote Originally Posted by high_flyer View Post
This is camera/driver specific, there is no general way to do this with any camera.
So first you need to know which camera you are using, and usually it will come with a lib that will allow an application to interface with it, and operate it, including image acquisition.
This is NOT a Qt issue.
Um, thats why I posted it in the General Programming-forum, for "non-Qt programming issues".

The problem is, I don't know what cameras the users will have. Are there no standard libraries that works with most of the common cameras? How do other programs make it? Do one have to write different code for every single webcam that the program must support?

Thanks for the answer so far!