6

I can resize the emacs frame to whatever size by mouse, is there a way that the frame size be set in init.el by pixels? Or anything similar in the window manager?

5

As of October 13, 2015, Feature request #21415 has been incorporated into the master branch (aka Emacs trunk), such that frame creation may now include a pixel specification -- this includes items such as the initial-frame-alist, default-frame-alist, and the make-frame function. The git commit identification number is d4fe840df0b5fdb3aed538fae2ced143a471f60a. It is built-in to the public release of Emacs 25.

Example of usage for the width parameter: '(width . (text-pixels . 1900))

Example of usage for the height parameter: '(height . (text-pixels . 1054))

Here is an example using make-frame -- the font I have chosen is available on OSX 10.6.8 (substitute your own favorite font in the example accordingly):

(defun my-example-make-frame ()
"Doc-string."
(interactive)
  (make-frame '(
   (name . "HELLO-WORLD")
   (font . "-*-Courier-normal-normal-normal-*-18-*-*-*-m-0-iso10646-1")
   (top . 100)
   (left . 100)
   (left-fringe . 8)
   (right-fringe . 8)
   (vertical-scroll-bars)
   (cursor-color . "yellow")
   (cursor-type . (bar . 1))
   (background-color . "black")
   (foreground-color . "white")
   (tool-bar-lines . 0)
   (menu-bar-lines . 0)
   (width . (text-pixels . 400))
   (height . (text-pixels . 400)))))'
4

I have a screen with resolution of 1024X600, but i set the display to 1024X724, here is my solution.

(setq frame-resize-pixelwise t)
(set-frame-position (selected-frame) 0 0)
(set-frame-size (selected-frame) 1024 600 t)

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