Re: quick note from the TWAIN/SANE meeting at OLS

From: Stephen Williams (steve@icarus.com)
Date: Tue Aug 08 2000 - 07:58:40 PDT

  • Next message: Oliver Rauch: "Re: Code freeze for 1.0.3"

    David.Mosberger@acm.org said:
    > Of course, a scanner vendor would want/need to provide a custom front
    > end to be able to make use of these options. However, I think this is
    > different from simply trying to write a fancy-looking custom frontend
    > for the standard SANE options, so I think we should keep them
    > separate.

    Right.

            (i) how to customize the look of the scanner dialog

    Right and I think this is not a concern of SANE, but of the higher layer
    that is TWAIN/Linux. All that sane needs (and already supports) is a
    means to describe that option for automatic dialog generators, which
    aren't expected to make it look as pretty as a custom one.

    The SANE method is similar to (but more general then) the ISIS method.

            (ii) how to provide an "escape" or "pass-through" mechanism that
                 permits for more extensibility (and how to do this without
                 completely breaking interoperability)

    Right. SANE has already got that (to a degree) but only lacks an improved
    means of sending different image formats. I believe a mechanism was proposed
    in the last big discussion that supported this in a way that did not burden
    generic applications.

    In a nutshell, a new well known image format type was discussed, and the
    SANE driver requireded to support a small subset [grayscale, RGB] in
    addition to any other formats it adds. Simple and elegant. I think we
    all agreed it was nifty, and will certainly accommodate the needs of
    any scanner I can think of, without complexifying things like xscanimage.

    -- 
    Steve Williams                "The woods are lovely, dark and deep.
    steve@icarus.com              But I have promises to keep,
    steve@picturel.com            and lines to code before I sleep,
    http://www.picturel.com       And lines to code before I sleep."
    

    -- Source code, list archive, and docs: http://www.mostang.com/sane/ To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com



    This archive was generated by hypermail 2b29 : Tue Aug 08 2000 - 07:59:26 PDT