Turn on the screen in a virtual webcam

Question

Is there an application (preferably a Mac application) that turns your screen area into a virtual webcam so that it is available as an input source for other applications that want to access the webcam?

Answer 1

CamTwist (Mac)

Allows you to turn your desktop into a camera image. And it's free.

Download here

If you are on Windows, check out ManyCam

Answer 2

or how about:

webcam (Linux)

is it java, so should most ports have ports?

http://www.ws4gl.org/

http://code.google.com/p/webcamstudio/

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CamCamX (Mac)

($ 99!), , , , ... , CamTwist...

http://b-l-a-c-k-o-p.com/CamCamX.html