Bug: get-face-font: Xemacs21.5.29: org-preview-latex-fragment [7.5]

[Julian Bradfield]

On 2012-01-28, Uwe Brauer <oub at mat.ucm.es> wrote:
>>> On Sat, 28 Jan 2012 14:59:23 +0100, Uwe Brauer <oub at mat.ucm.es> wrote:
>
>    > The problem seems to be here:
>
>    > (defun org-dvipng-color (attr)
>    >   "Return an rgb color specification for dvipng."
>    >   (apply 'format "rgb %s %s %s"
>    > 	 (mapcar 'org-normalize-color
>    > 		 (color-values (face-attribute 'default attr nil)))))
>
>    > Xemacs complains about color-values and of course face-attribute.
>
> It seems that GNU emacs color-values, corresponds to Xemacs 
> x-color-values, but how should be 

You could start with
  (face-property 'default (intern (substring (symbol-name attr) 1)))

but then there's more to do, because an XEmacs color is a specifier,
not a color name.
So then you want
   (color-rgb-components
     (face-property 'default (intern (substring (symbol-name attr) 1))))


(Ten minutes with the manual, while cooking risotto.)