Re: Porting Visioneer USB scanner on SANE issues

From: Oliver Rauch (oliver.rauch@Wolfsburg.DE)
Date: Thu Sep 28 2000 - 10:34:19 PDT

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    kwlee wrote:
    >
    > Hi,
    >
    > > please start all tests with scanimage and xscanimage.
    > This is because when i tried xscanimage, it reported that GTK
    > is getting problem, so Karl Heinz Kremer suggest me use
    > xsane and it did work for my backend.
    >
    > The current problem is that I'm not much understand
    > the control flow about xsane if i use TWAIN concept
    > to figure it out.
    >
    > So to the topic about resolution_list, in xsane.c
    > xsane_resolution_widget_new(xsane_vbox_xsane_modus, xsane.well_known.dpi,
    > so I have to assign well_known.dpi in order to genertae resolution_list,
    > i can not find anywhere to query this value from my backend, if i assign
    > this value in xsane.c, then i can see the resolution_list:)
    >
    > Another problem, how can my backend know a "scan session"
    > is Preview or Real Scan, by Setting "resolution" or by tags ?

    Hi kw,

    did you read the sane standard? The well known options are
    explained there (resolution and preview-bit).

    Bye
    Oliver

    -- 
    Homepage:	http://www.wolfsburg.de/~rauch
    sane-umax:	http://www.wolfsburg.de/~rauch/sane/sane-umax.html
    xsane:		http://www.wolfsburg.de/~rauch/sane/sane-xsane.html
    E-Mail:		mailto:Oliver.Rauch@Wolfsburg.DE
    

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