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<TITLE>sane-devel: Re: short comment about graphical frontends</TITLE>
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<META NAME="Author" CONTENT="Nick Lamb (njl98r@ecs.soton.ac.uk)">
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<META NAME="Subject" CONTENT="Re: short comment about graphical frontends">
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<H1>Re: short comment about graphical frontends</H1>
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<STRONG>From:</STRONG> Nick Lamb (<A HREF="mailto:njl98r@ecs.soton.ac.uk?Subject=Re:%20short%20comment%20about%20graphical%20frontends&In-Reply-To=<20000814044638.A17650@ecs.soton.ac.uk>"><EM>njl98r@ecs.soton.ac.uk</EM></A>)<BR>
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<STRONG>Date:</STRONG> Sun Aug 13 2000 - 20:46:38 PDT
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<LI><STRONG>In reply to:</STRONG> <A HREF="0094.html">Nick Lamb: "Re: short comment about graphical frontends"</A>
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On Thu, Aug 10, 2000 at 06:31:53PM +0200, mh wrote:
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<EM>> I first noticed this when I tried to implement my own frontend.
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</EM><BR>
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<EM>> Sometimes the image size seemed to be wrong.
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</EM><BR>
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<EM>> Therfore I made a short test with xscanimage1.0.2 and xsane0.59...
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</EM><BR>
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<EM>> same problem :-(
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> At least the backend I'm using (plustek V0.36-18)doesn't allow you
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</EM><BR>
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<EM>> to set a tlx/tly value that's bigger than the brx/bry value, even
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</EM><BR>
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<EM>> if this is only an intermediate state.
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</EM><BR>
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<P>On Fri, Aug 11, 2000 at 03:24:17PM +0100, I wrote:
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<EM>> Well, I would think that's probably best fixed in xsane/ xscanimage
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</EM><BR>
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<EM>> for now, a quick and easy solution is to set tlx, tly, then brx, bry
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</EM><BR>
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<EM>> and then tlx, tly again to be sure.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> In fact, I think I've seen this problem, but I couldn't swear which
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</EM><BR>
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<EM>> backend I've seen the behaviour you describe on.
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</EM><BR>
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<P>I have now confirmed this behaviour in the HP backend too, in fact
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<BR>
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for this backend (or perhaps for XSane?) the tlx...bry options are
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<BR>
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reset under all sorts of conditions.
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<BR>
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<P>Since this is quite legal, and might even be necessary for some
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<BR>
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backends (I can't say if it is for HP) it seems XSane should do what
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<BR>
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it can to improve the user experience,
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<BR>
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ie: Whenever the backend resets tlx...bry, try to change them back
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<BR>
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<P>Also, as I said before, it would be nice if it set the top-left
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twice, so that the annoying behaviour mh and I saw stops.
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<BR>
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In the _very unlikely_ occasion that I have free time next weekend
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<BR>
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I will try to write a patch, but Oliver knows the code far better
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<BR>
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so hopefully he will be able to sort this out.
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<BR>
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<P>Nick. -- Using an HP again for the first time in months
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<BR>
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<P><PRE>
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--
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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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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0117.html">Harald Finster: "Re: ScanMaker X6EL vertical line artifact"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0094.html">Nick Lamb: "Re: short comment about graphical frontends"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Sun Aug 13 2000 - 20:43:42 PDT</EM>
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