I want to be able to jump to definition with control left click when editing c++ code. I tried

(define-key c++-mode-map [C-mouse-1] 'rtags-find-symbol-at-point)

This does not seem to work because emacs (24.5.1) already define a global behavior for C-mouse-1 (buffer navigation in graphical mode). The contextual window opens, but rtags-find-symbol-at-point is not called. Any way to make this work ?

2 Answers 2



(define-key c++-mode-map [C-down-mouse-1] 'rtags-find-symbol-at-point)
  • 1
    If you do f1 k then hold control and click it tells you that you pressed C-down-mouse-1, so this is probably what you should bind.
    – dshepherd
    May 25, 2016 at 11:20
  • @dshepherd what is f1 k?
    – sid-kap
    Dec 20, 2016 at 17:29
  • @sid-kap I meant press the F1 key, then press the k key.
    – dshepherd
    Dec 20, 2016 at 18:41

For me the C-down-mouse-1 solution worked, but still used the point from before the click. Thus I use now:

(define-key c-mode-base-map [C-down-mouse-1] 'mouse-drag-region)
(define-key c-mode-base-map [C-mouse-1] 'rtags-find-symbol-at-point)

so now, first the point gets set, then we find the correct symbol.

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