Hey,

I'm trying to select a region using set-mark and goto-char. It works, except
that I do not see the region. This simple test function for example will
select the region, but not highlight it.

(defun test ()
  (interactive)
  (let ((region (buffer-substring-no-properties (point) (mark))))
    (delete-region (point) (mark))
    (forward-char 1)
    (insert region)
    (set-mark 2)
    (goto-char 20)))

Any idea why that might be?

Thanks!