Is it possible in Silverlight to stream a live video screencast of the desktop?

I would like to develop a web conferencing system (or web classroom) as a graduation project using Silverlight similar to

iVocalize

which is a java applete .

I don't k开发者_如何学运维now if what is possible for a java applete to perform on the PC is also possible for Silverlight, or is SL more restricted.

There are two functionalities (which are related i guess) that iVocalize provides which i would also like to include in my SL application, which are:

1. A participant may broadcast a live video stream of the desktop to other participants so that they will be able to follow all activities performed on the computer.
2. A participant may take a snapshot of the desktop

If the previous functionalities are not possible in SL than do you think that WPF may be used instead?

Thank you vey much.

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1. Actually, you can use Silverlight 4 Web cam features.
2. With Silverlight 4, you can develop full-trust Silverlight application that can capture the snapshot of user desktop.

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Using Silverlight it is possible.. Have a look at this open source silverlight project. Its has desktop sharing as one of the module

http://silverlightvideochat.codeplex.com/