Stencil Frames

I’m having trouble figuring out how to use the stencil buffer to create a frame. Currently I have a 3d scene that I can walk around in. ( I want to create a blood red frame around all edges of my screen. Basically, keep the red frame static and whenever i change my view, everything updates within the frame. Any suggestions on how to do this or any good examples to look at? Thanks.

Sorry, but we don’t do people’s homework for them.

I wasn’t asking for anyone to do my homework for me. I’ve been working on this project for a while, if the code didn’t show this. I was asking for references so I could figure out how to do it myself. I have the Red Book and have not been able to figure out how to do it based on those examples. I am taking this course so I can get into computer game development. Did you automatically understand everything about OpenGL by reading it in the book and not looking at multiple examples? I understand the basics of stencils, but not enough from my reading to do what I want to do.