You're thinking in the wrong direction, it happens to all of us from time to time. IE is an interface used to interpret text from a source, usually one on the internet. Assuming it's HTML to keep this simple, it is sent to your system as plain text instructions. The images, sounds and interfaces that you see and use are all created or fetched by your workstation using IE and rendered into what you see based on those instructions.
If what you want is the text from a website, then you need to have something to connect to the site and pull data from it. So a good place to start would be the WinSock2 API.