[sane-devel] SANE 1.1.0 Release discussion

m. allan noah kitno455 at gmail.com
Mon May 26 12:25:58 UTC 2008

sorry rene- this should have gone to list...

On 5/26/08, m. allan noah <kitno455 at gmail.com> wrote:
> On 5/26/08, René Rebe <rene at exactcode.de> wrote:
> > Hi Allan,
>  >
>  >  can you explain the paper width option to me? Why can we
>  >  not simply use br x/y?
>  >
>  >  Actually I got a Fujitsu scanner here and find the duplicate
>  >  paper width option annoying at best.
> it is not duplicate. it is used by the backend to properly center the
>  users x/y params to the moving paper guides. otherwise, if they want
>  to scan an entire sheet of A5, they have to set the tl_x/y to some
>  weird value that they have to calculate from the scanner's maximum
>  width.
>  how do you handle this in avision now?
>  >
>  >  Aside the already mentioned button to use some more extend-able
>  >  XML encoding instead of a hardcoded set, I wonder if it is
>  >  good to expose sensors, frontends would rarely (if ever?) want
>  >  to check for them explicitly and the backend must check the
>  >  sensors before or during scan to generate proper errors
>  >  accordingly anyway.
> don't assume that sensors only indicate errors. the paper-in signal is
>  quite useful in high volume apps- the front-end can start scanning
>  immediately.
>  xml does not fix this problem, cause we would still have to define a
>  schema so that front-ends could interpret it. so, lets just avoid the
>  xml dependency.
>  allan
>  --
>  "The truth is an offense, but not a sin"

"The truth is an offense, but not a sin"

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