我假设您使用的是Emacs 24；我没有在任何早期版本中测试过此答案，也不知道何时将专用窗口的概念添加到Emacs中。我已经提到过它的使用始于2011年，因此我认为Emacs 23（至少）也具有此功能。
您可以通过将窗口专用于其缓冲区来阻止Emacs在给定窗口中打开新缓冲区。
在最简单的情况下，您可以通过选择您要专用的窗口，确保当前当前显示您要专用的缓冲区来执行此操作，然后执行M-: (set-window-dedicated-p (selected-window) t)。这将阻止Emacs在决定在哪个窗口中显示缓冲区时考虑如此修改的窗口。要删除奉献，请计算相同的表达式，将第二个参数替换为nil。
您可以阻止Emacs尝试拆分显示给定缓冲区的窗口，该窗口将固定于缓冲区的局部变量window-size-fixed设置为非nil值。
在最简单的情况下，您可以通过选择窗口并执行来执行此操作M-: (setq window-size-fixed t)。要仅固定显示缓冲区的窗口的高度或宽度，请使用'height或'width作为第二个参数求值相同的表达式；要删除限制，请用替换第二个参数nil。
在一般情况下，我发现您的问题很有趣，可以破解一个解决方案，您可以将该解决方案放入加载路径(require)，并使用：
;;; dedicate-windows-manually.el --- Manually (un)dedicate windows
;; Copyright (C) 2013 Aaron Miller
;; <me@aaron-miller.me>
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2 of
;; the License, or (at your option) any later version.
;; This program is distributed in the hope that it will be
;; useful, but WITHOUT ANY WARRANTY; without even the implied
;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;; PURPOSE. See the GNU General Public License for more details.
;; You should have received a copy of the GNU General Public
;; License along with this program; if not, write to the Free
;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
;; MA 02111-1307 USA
;;; Commentary:
;; Introduction
;; ============
;; The functions here defined allow you to manually dedicate and
;; undedicate windows, that is, prevent `set-window-buffer' from
;; considering them when selecting a window in which to display a
;; given buffer.
;; Windows dedicated in this fashion will also be protected from
;; splitting by setting `window-size-fixed'.
;; Installation
;; ============
;; Place this file in your load path; then, place the following
;; command somewhere in your initialization file:
;; (require 'dedicate-windows-manually)
;; Now you can use M-x dedicate-window to dedicate the selected window
;; to its currently displayed buffer, M-x undedicate-window to release
;; a dedication so applied, and M-x dedicate-window-toggle to switch
;; between the states.
;; These functions will operate only on manually dedicated or
;; undedicated windows; that is, M-x dedicate-window will not dedicate
;; a window which is already dedicated (i.e. "(window-dedicated-p
;; window) -> t", and M-x undedicate-window will not undedicate a
;; window which was not dedicated by way of M-x dedicate-window.
;; If you find yourself frequently doing M-x dedicate-window-toggle,
;; you might wish to place something like this in your init file:
;; (global-set-key (kbd "C-x 4 C-d") 'dedicate-window-toggle)
;; Bugs:
;; * Changing the lighter string while you have windows dedicated is
;; probably not a good idea.
;; * I should certainly find a better way to change the mode line.
;;; Code:
(defcustom dedicated-window-lighter-string " [D]"
"A string, propertized with `dedicated-window-lighter-face', prepended
to the mode line of manually dedicated windows.")
(defvar dedicated-windows-by-hand nil
"A list of windows known to have been manually dedicated. Windows not
in this list will not be undedicated by `undedicate-window'.")
(defun dedicate-window-was-by-hand-p (window)
(let ((result nil))
(loop for w in dedicated-windows-by-hand
collect (if (eq w window) (setq result t)))
result))
(defun dedicate-window (&optional window flag)
"Dedicate a window to its buffer, and prevent it from being split.
Optional argument WINDOW, if non-nil, should specify a window. Otherwise,
or when called interactively, the currently selected window is used.
Optional argument FLAG, if non-nil, will be passed verbatim to
`set-window-dedicated-p'."
(interactive nil)
(if (eq nil window) (setq window (selected-window)))
(if (eq nil flag) (setq flag t))
(if (window-dedicated-p window)
(message "Window is already dedicated.")
(progn
(add-to-list 'dedicated-windows-by-hand window)
(setq mode-line-format
(append `(,dedicated-window-lighter-string) mode-line-format))
(setq window-size-fixed t)
(set-window-dedicated-p window flag))))
(defun undedicate-window (&optional window)
"Un-dedicate a window from its buffer.
Optional argument WINDOW, if non-nil, should specify a window listed in
`dedicated-windows-by-hand'. Otherwise, or when called interactively,
the currently selected window is used.
If WINDOW is not in `dedicated-windows-by-hand', a complaint will be
issued and nothing will be done."
(interactive nil)
(if (eq nil window) (setq window (selected-window)))
(if (not (window-dedicated-p window))
(message "Window is not dedicated.")
(if (not (dedicate-window-was-by-hand-p window))
(message "Window is not dedicated by hand.")
(progn
(setq dedicated-windows-by-hand
(remove window dedicated-windows-by-hand))
(setq mode-line-format
(remove dedicated-window-lighter-string mode-line-format))
(setq window-size-fixed nil)
(set-window-dedicated-p window nil)))))
(defun dedicate-window-toggle (&optional window)
"Toggle a window's manual buffer dedication state.
Optional argument WINDOW, if non-nil, should specify a window. Otherwise,
or when called interactively, the value of `selected-window' is used."
(interactive nil)
(if (eq nil window) (setq window (selected-window)))
(if (window-dedicated-p window)
(undedicate-window window)
(dedicate-window window)))
(provide 'dedicate-windows-manually)
;;; dedicate-windows-manually.el ends here