Most of the text editors/IDEs that I use these days have a feature where it can display a line at a certain character length in the text buffer. It's useful when you want to keep lines of text under a certain length.
Is there any way to get vim to do this (preferably to use the already-defined textwidth value)? It will automatically wrap at that point, but I'd really like to be able to see where it is as well.
In case it matters, I'm mainly using gVim on Windows, but I'd love it if the solution works across vim versions.