使用ASP.Net，是否有一种编程方式来截取浏览器内容？

I have an ASP.Net application which as desired feature, users would like to be able to take a screenshot. While I know this can be simulated, it would be really great to have a way to take a URL (or the current rendered page), and turn it into an image which can be stored on the server.I have an ASP.Net application which as desired