Changing color of keywords in Emacs editor

Technote (FAQ)


How do you change the color of keywords if you are using the Emacs editor?

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If you are using Emacs editor with IBM Rational Apex, it is possible to change the color of keywords.

To do this place the following in your .emacs file:

(add-hook 'c-mode-hook 'turn-on-font-lock)
(add-hook 'ada-mode-hook 'turn-on-font-lock)

In Apex, Emacs windows obtain color definitions from the same Apex X resources that apply to Apex's non-emacs (Motif) windows. Note that this is different from the usual methods that are used to define colors in standard Emacs.

The default values for these X resources are defined in file $APEX_HOME/app-defaults/Rational-color. These resources settings may be user defined by copying them from file Rational-color into a file in your home directory called "Rational", which you may need to create. Then simply change the color name to one of the color names defined in file /usr/openwin/lib/rgb.txt. The changes will take effect the next time you start Apex.

Cross reference information
Segment Product Component Platform Version Edition
Software Development Rational Ada Developer --

Document information

More support for:

Rational Apex

Software version:

3.0.0b, 3.0.1, 3.2.0b, 4.0.0b, 4.0.0c, 4.2.0b, 4.2.2b, 4.4.0

Operating system(s):

AIX, HP-UX, IRIX, Linux, Solaris, TRU64 UNIX

Reference #:


Modified date:


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