How do I make this Emacs frame keep its buffer and not get resized?

Question

My Emacs frame looks like this:

+---------------------------+
|             |             |
|             |             |
|             |      B      |
|             


        

Answer 1

One possibility is to dedicate the window to its buffer, using set-window-dedicated-p. This will not prevent the window from being resized manually, only protect it from being clobbered by display-buffer. For example,

(add-hook 'shell-mode-hook
      (lambda ()
        (interactive)
        (set-window-dedicated-p (selected-window) 1)))

Replace shell-mode-hook as necessary.