In Emacs how can I resize a buffer so it only takes a small

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Editorial Team

Asked: May 25, 20262026-05-25T22:50:42+00:00 2026-05-25T22:50:42+00:00

In Emacs how can I resize a buffer so it only takes a small part of the screen ?

Is there any way ?

I would like to have the src taking 70% of the screen and a file manager in the other 30%

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Editorial Team · Answer 1 · 2026-05-25T22:50:42+00:00

Editorial Team

Set width of current window on current frame to ~ 70%:

(window-resize nil (- (truncate (* 0.7 (frame-width))) (window-width)) t)

The other windows are shrunk automatically. If you want to adjust more than one it gets more difficult.

As command:

(defun window-resize-to-70-percent ()
  (interactive)
  (window-resize nil (- (truncate (* 0.7 (frame-width))) (window-width)) t))

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