How do I capture a web applications screen to attach to an e-mail on error?

I am working on a web application and we would like to capture the screen (either the applications current screen or the whole screen) and attach this to an e-mail that is automatically generated for error messages. I've seen a few posts about how to do this in a winform app, but nothing really on how to do it in a web app. Is it the same process? Any sites that have helpful steps on how to achieve this in a web app are appreciated.

EDIT: Is it possible for us to achieve something similar with screen scraping? I'm not too familiar with what all can be done with a scree开发者_C百科n scrape so any suggestions are also welcomed.

---

There's no screen in a web application. You have to do this on the client machine, who has a browser capable of transforming the HTML to some interface worth capturing.

What you could do in your web application is to register for the Application_Error event in global.asax and send an email for each exception.

---

instead of such screen shot, using Server.GetLastError() to capture the error and sending to admins has more meaning

---

Not much of a .NET guy but, there should be some way to get the Response object in your exception catching code and then include a serialized representation of it in your email. Things like headers and session variables are also useful, FWIW...