Open non-diff window in vimdiff

Question

Sometimes I use vimdiff and want to capture the code and drop it in the third window / buffer for later reference. However, when this window is open, almost everything is identified as diff (because it is intentionally different from the other two files). How can I open a window in diff-free mode when using vimdiff?

Answer 1

You can prevent the window from the other distinction, completing :diffoffin this window.

See also :h :diffoff.