> The limitation of Tk is that it natively supports gif, but not jpg or png
> (although there are add on libraries that do)
>
> However, since you are rinning Linux, Gtk+ works great on that (windows,
> so-so, Linux, great)

Now seems like a good time for me to pipe up and say that FOX (and FXRuby)
support a variety of popular image file formats (GIF, PNG, BMP, JPEG and
XPM). And unlike GTK it works great on both Linux/Unix and Windows. For more
information about FXRuby, the Ruby language bindings for FOX, see the FXRuby
home page:

    http://fxruby.sourceforge.net

and for more general information about FOX's features, etc., see the FOX
home page:

    http://www.cfdrc.com/FOX/fox.html

> The Ruby GTK library has a viewer program in the /samples/gdkimlib subdir
of
> the distribution folder named rbview which reads jpg and png (and gif)
very
> nicely. Ruby GTK can be found on RAA.

The next drop of FXRuby (due early next week) will include in its examples a
new image viewer program, capable of reading and manipulating all of the
image file formats supported by FOX.