How can I get mouse selection to work in emacs and iTerm2 on Mac?

macos emacs iterm
Chris picture Chris · Apr 19, 2011 · Viewed 16.4k times · Source

after turning on xterm-mouse-mode, any click on the in the screen returns "mouse-1 is undefined". What should I be defining "mouse-1" as? Is there some reason my mouse clicks are returning this event, and not others its suspecting?

Answer

bfroehle picture bfroehle · Jan 14, 2012

For Emacs in iTerm 2, I've found that the following bit in my ~/.emacs file works very well, providing the ability to insert the character at an arbitrary location, mark a region, and use the scroll wheel:

;; Enable mouse support
(unless window-system
  (require 'mouse)
  (xterm-mouse-mode t)
  (global-set-key [mouse-4] (lambda ()
                              (interactive)
                              (scroll-down 1)))
  (global-set-key [mouse-5] (lambda ()
                              (interactive)
                              (scroll-up 1)))
  (defun track-mouse (e))
  (setq mouse-sel-mode t)
)

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