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<TITLE>sane-devel: Re: TODO list</TITLE>
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<META NAME="Author" CONTENT="Oliver Rauch (oliver.rauch@Wolfsburg.DE)">
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<META NAME="Subject" CONTENT="Re: TODO list">
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<H1>Re: TODO list</H1>
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<!-- received="Thu Nov 9 11:22:11 2000" -->
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<!-- name="Oliver Rauch" -->
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<!-- subject="Re: TODO list" -->
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<STRONG>From:</STRONG> Oliver Rauch (<A HREF="mailto:oliver.rauch@Wolfsburg.DE?Subject=Re:%20TODO%20list&In-Reply-To=<3A0AF882.F59447DE@wolfsburg.de>"><EM>oliver.rauch@Wolfsburg.DE</EM></A>)<BR>
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<STRONG>Date:</STRONG> Thu Nov 09 2000 - 11:18:26 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0148.html">Oliver Rauch: "Re: TODO list"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0146.html">Jochen Eisinger: "Re: TODO list"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0143.html">Henning Meier-Geinitz: "Re: TODO list"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0150.html">Henning Meier-Geinitz: "Re: TODO list"</A>
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<P>
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Henning Meier-Geinitz wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> I see. So maybe we can just add some sort of callback mechanism
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</EM><BR>
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<EM>> (pseudocode):
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> SANE_Status
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</EM><BR>
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<EM>> sane_set_message_callback (message_call_back_function_pointer m)
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> So with using this, the frontend tells the backend that it can handle
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</EM><BR>
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<EM>> messages.
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</EM><BR>
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<EM>>
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</EM><BR>
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<P>Hi Henning,
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<BR>
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<P>we should not add such "hacks" to the existing sane standard.
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<BR>
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We can think about adding a callback to sane-2.0, in that case
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<BR>
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the frontend does not need to tell the backend what it can do
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<BR>
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(SANE defines that a sane-2.0 backend will not work with a 1.0 frontend).
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<BR>
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<P><P><EM>> In your case you could pop up the message "Remaining time for warm-up:
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</EM><BR>
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<EM>> xx seconds. Do you want to scan immediately or wait for warm-up?"
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</EM><BR>
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<P>For this the backend should define a bool option
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<BR>
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"fast warmup" or a range "warmup time (1..300 sec)".
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<BR>
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(for sane-1)
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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:%20TODO%20list&In-Reply-To=<3A0AF882.F59447DE@wolfsburg.de>">Oliver.Rauch@Wolfsburg.DE</A>
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<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:%20TODO%20list&In-Reply-To=<3A0AF882.F59447DE@wolfsburg.de>">majordomo@mostang.com</A>
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</PRE>
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