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<TITLE>sane-devel: Re: Xsane-0.55: scan resolution selection (Epson 12</TITLE>
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<META NAME="Author" CONTENT="Oliver Rauch (oliver.rauch@Wolfsburg.DE)">
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<META NAME="Subject" CONTENT="Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)">
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<H1>Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)</H1>
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<STRONG>From:</STRONG> Oliver Rauch (<A HREF="mailto:oliver.rauch@Wolfsburg.DE?Subject=Re:%20Xsane-0.55:%20scan%20resolution%20selection%20(Epson%201200S,%20CVS%20Sane)&In-Reply-To=<38AE8B54.2DD432B5@wolfsburg.de>"><EM>oliver.rauch@Wolfsburg.DE</EM></A>)<BR>
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<STRONG>Date:</STRONG> Sat Feb 19 2000 - 04:23:49 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0220.html">Harry E. Clarke: "Re: New CVS snapshot 20000213"</A>
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<UL>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0218.html">Jonathan Buzzard: "USB scanners under Sane/Linux"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0215.html">John Vickers: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0222.html">Karl Heinz Kremer: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0222.html">Karl Heinz Kremer: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<HR NOSHADE><P>
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John Vickers wrote:
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<BR>
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<P><EM>> Hi.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> I had a bit more of a poke around, and I think the problem is in xsane.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> (After making sure I really was linking with the sane I thought
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</EM><BR>
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<EM>> I was linking with...)
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> xsane uses quite different code for the preview resolution slider
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</EM><BR>
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<EM>> and for the main resolution slider.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> For the preview slider, the xsane resets the slider value to the
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</EM><BR>
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<EM>> resolution value returned by the backend, so that a subsequent
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</EM><BR>
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<EM>> change to the slider value, via cursor keys or mouse clicks
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</EM><BR>
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<EM>> is relative to the valuye returned by the backend.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> For the main resolution slider, the slider value is never reset.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> HTH. I'll do some more digging. But this GUI stuff is a bit high level
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</EM><BR>
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<EM>> for me. Can't you write it in VHDL ? ;-)
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> John.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Karl Heinz Kremer wrote:
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > Hmmm... The Epson backend uses a range for both the scan and
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</EM><BR>
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<EM>> > preview resolution. What is the "recommended" way of handling
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</EM><BR>
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<EM>> > the resolution list? I've checked all the backends in the CVS
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</EM><BR>
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<EM>> > and I see word lists, string lists, and ranges. I have the
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</EM><BR>
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<EM>> > feeling that I should change this... Oliver, do you have
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</EM><BR>
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<EM>> > any advise on which of the lists is more useable from a
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</EM><BR>
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<EM>> > frontend perspective?
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</EM><BR>
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<EM>> >
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</EM><BR>
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<P>Hello Karl Heinz,
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<BR>
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<P>the sane standard defines only one "resolution" as well known option.
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<BR>
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It does not make sense to have a "preview resolution" option because
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<BR>
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the frontend has to set the correct resolution in each case and like defined
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<BR>
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in the standard xscanimage and xsane do set the option "resolution".
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<BR>
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<P>If the preview resolution option is removed from the epson backend
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<BR>
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everything will work fine.
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<BR>
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<P>Bye
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<BR>
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Oliver
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<BR>
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<P><PRE>
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--
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Homepage: <A HREF="http://www.wolfsburg.de/~rauch">http://www.wolfsburg.de/~rauch</A>
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sane-umax: <A HREF="http://www.wolfsburg.de/~rauch/sane/sane-umax.html">http://www.wolfsburg.de/~rauch/sane/sane-umax.html</A>
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xsane: <A HREF="http://www.wolfsburg.de/~rauch/sane/sane-xsane.html">http://www.wolfsburg.de/~rauch/sane/sane-xsane.html</A>
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E-Mail: mailto:<A HREF="mailto:Oliver.Rauch@Wolfsburg.DE?Subject=Re:%20Xsane-0.55:%20scan%20resolution%20selection%20(Epson%201200S,%20CVS%20Sane)&In-Reply-To=<38AE8B54.2DD432B5@wolfsburg.de>">Oliver.Rauch@Wolfsburg.DE</A>
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<P><P><P><P>--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Xsane-0.55:%20scan%20resolution%20selection%20(Epson%201200S,%20CVS%20Sane)&In-Reply-To=<38AE8B54.2DD432B5@wolfsburg.de>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0220.html">Harry E. Clarke: "Re: New CVS snapshot 20000213"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0218.html">Jonathan Buzzard: "USB scanners under Sane/Linux"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0215.html">John Vickers: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0222.html">Karl Heinz Kremer: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0222.html">Karl Heinz Kremer: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Sat Feb 19 2000 - 04:25:36 PST</EM>
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