While I have worked in the engineering of such things, the feature you want should be in the product manual. If not, cancel the order and find one that does what you want.
Yes, I see something in your post about a C# library but that's not working either so cut your loss of time and money and find one that does what you wanted.
Bob
I have ordered a Sricam AP006 IP dome camera from China for security purposes. The basic functions work well (including PTZ motion control), but I would like to build some additional features to improve its efficiency.
The first and foremost is that I need customized video recording, but I can not figure out how to do that.
In more details: I want to capture and save the video stream while the camera is panning between a specified 'A' and 'B' points. I do not want to record all day long, only within a specified time interval.
Instead of using a dedicated DVR or NVR, I would apply a software-based solution. (I prefer .NET languages, especially C#.) I have made some researches and I think the easiest way to implement this feature if I use a camera library. But I can not see Sricam in the list of cameras supported by the only one C# camera library that I found.
Can anybody help me to get started? Any idea would be appreciated!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic