Im trying to use my digital camera as a web cam and it wont let me, why not?

not all digital cams are able to be used as a webcam. did the one your using say it could on the box if so you need to put the drivers into your system and try again.

It doesn't have the function as a web cam, duh? /:)

Because its not a webcam and its not intended on working like a webcam. Duh.