First of all im new here and to C# so easy on me guys 
and forgive my english.
I'm building an application on Motion Detection, actually its my graduation project and i can use all the help i can get... i dont need you to write the code for me i just need your help to understand it..
im using the DirectX class library.. and so far i was able to preview and capture the video from the digital cameras to the hard disk.. but i can't find a way to compare frams or detect the motion... some told me to use the DirectShow filters.. i looked for its documentation but didnt find any..
any help on the documentation or any ideas that might help me enhance the application will be very helpfull.
thank you
DshowNet and DirectX
setuc
Thank you cgraus.. i have seen this article before and it was very usefull, as a matter of fact is was the lunch base to my project, but when i digged deeper in his code i got confused and everything was fuzzy, dont forget that im new to c sharp, if he only included a documentation for the librarys he used.
i apreciate your help but what i want to do is ( read documentation, understand basic structure, write the code ) while explanation on that article is limited to main topics.
thanx again, really apriciate it.
Mooseboy2358
Here is an article on exactly this.
http://www.codeproject.com/csharp/motion_detection.asp
Hopefully it will give you everything you need to get started.
Nitin Badole