How to check if Emacs is in GUI mode (and execute `tool-bar-mode` only then)?

Posted by dehmann on Server Fault See other posts from Server Fault or by dehmann
Published on 2010-04-13T18:19:50Z Indexed on 2010/04/13 18:23 UTC
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emacs

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macosx

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lisp

I have this line in my .emacs file:

(tool-bar-mode 0)

because I hate the toolbars in my GUI emacs (/Applications/Emacs.app/Contents/MacOS/Emacs).

But when I start up my other, text-based emacs in the terminal (/opt/local/bin/emacs) it complains about that command:

Symbol's function definition is void: tool-bar-mode

How can I add an if condition so that it executes the tool-bar-mode command only when I'm in the GUI emacs?

Thanks!

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