Is there a way to record the screen, either desktop or window, using .NET technologies.
My goal is something free. I like the idea of small, low cpu usage, and simple, but would consider other options if they created a better final product.
In a nutshell, I know how to take a screenshot in C#, but how would I record the screen, or area of the screen, as a video?
Thanks a lot for your ideas and time!
There is no need for a third party DLL. This simple method captures the current screen image into a .NET Bitmap object.
private Image CaptureScreen()
{
Rectangle screenSize = Screen.PrimaryScreen.Bounds;
Bitmap target = new Bitmap(screenSize.Width,screenSize.Height);
using(Graphics g = Graphics.FromImage(target))
{
g.CopyFromScreen(0,0,0,0,new Size(screenSize.Width,screenSize.Height));
}
return target;
}
I am sure you can figure out how to capture a smaller portion of the screen, if that is needed :-).
You can use Windows media Encoder SDK to build a c# application to record the screen. There are in-built options to record the entire desktop, a particular window or a portion of the screen.
There is a dll out there that can do it. Don't remember the name of it but it's used by Jing. A friend of mine implemented a screen recorder in just a few minutes by using that dll, just for testing. Check out Jing and you'll probably find the dll they use.
You can use Media Encoder SDK but it is not supported on Windows 7.
You may try this opensource utility: ScreenRecord (http://screenrecord.codeplex.com/) it's based on AForge.NET
来源：https://stackoverflow.com/questions/397754/record-video-of-screen-using-net-technologies