Re: XBM images sometimes inverted on Windows

[Jason Rumney]

Neil Roberts wrote:
> Hi,
>
> I've noticed that when running Emacs under Windows, if you create an
> XBM image where the :data keyword is set to a string containing the
> actual bits of the bitmap then the foreground and background colours
> are swapped. 
>   
> (defconst smiley-data '(#x00 #x00 #x24 #x00 #x00 #x24 #x18 #x00))
>
>
> (defun smiley-from-xbm-bytes ()
>   ;; Make an image using the bytes directly in a string
>   (list 'image :type 'xbm :ascent 100 :width 8 :height 8
>       :data (apply 'string smiley-data)))
>   

Does this result in a valid xbm image? There is no width and height
specified, and the data is not in the textual format that an xbm is
supposed to be in.