[ltk-user] Icons

[Bill Ramsay]

I'm trying to add an image or icon to a menubutton (or regular button) 
and I don't quite get how it works.

What does the first parameter of image-load represent  (i.e. photo as in 
(image-load photo "x.ppm"))?
Should I be working with bitmaps instead of images?
How does the result of the load get assigned to the widget?
And how does the :anchor or :justify get placed on the icon as opposed 
to the button text or the button itself?

Is there an example of this anywhere?

Thanks,

Bill