Why does OpenCV give me a black screen?

Question

I\'m currently trying to use OpenCV (using the Processing library). However, when I try to run any examples (either the Processing ones or the C ones included with OpenCV),

Answer 1

OpenCV 2.1 still has a few problems with 64bits OS. You can read this topic on the subject.

If you're looking for working/compilable source code that shows how to use the webcam, check this out.

Let us know if it helped you.