Looks good so far, Ed. I like the layout, with the combined histo on top, and the RGB histos superimposed.
I'm sure there will be a raging torrent of suggestions on more gongs and whistles to add. I would like to see some way of connecting the histograms to the numbers entered in the WP, BP, and gamma settings, but I am not sure about the best way to do this. I like the way it is done in Nikon Scan, with sliders, numeric fields, and a button to toggle between before/after histos. But that's a bit complex. BTW, in my neck of the woods "slider" is the term we use to decribe greasy hamburgers. Here's one request that I think makes sense, and which would be easy to implement. If the user is viewing the Prev Hist tab and then executes a Preview or Prev Mem, leave the Prev Hist tab in front, rather than switching to the Preview tab. Chances are, the user wants to see the effects of the new scan on the histogram. Similarly, if Scan Hist is in front, leave it in front if the user does a Scan or Scan Mem. My own preference would be for disabling automatic flipping of the display and histo tabs altogether, and let me choose when to flip them. -- Julian Vrieslander <mailto:[EMAIL PROTECTED]>