[sane-devel] scanimage and scanadf command line args

m. allan noah anoah@pfeiffer.edu
Sat, 21 Jun 2003 15:53:31 -0400 (EDT)

the options you are discussing are backend specific.

with no scanner attached to the machine, if you run scanimage --help and 
scanadf --help, you will see nothing about scanning options, only input 
and output file, and file format.

the threshold and paper size options are provided by the scanner backend, 
so if they malfunction, it is probably my fujitsu 4120 code :)

the fact that one of them works, but is hidden, perhaps is because that 
option is set to SANE_CAP_ADVANCED, which hides it from most users (try 
using xsane, you will see the advanced option in menu, iirc).


On Fri, 20 Jun 2003, Peter Santoro wrote:

> My application makes use of scanimage and scanadf (sane 1.0.12 backend and 1.0.11 frontend) and it appears that there 
> are a few inconsistencies with respect to the command line args of these sane front-ends.
> For instance, when using my fujitsu fi-4120c, "scanadf --help" shows that there is a "--paper_size" option available. 
> Actually, it needs to be entered as "paper_size".  Also, there is no "--threshold" option listed on the help screen, but 
>   it can be entered and it does appear to work correctly.  There are other apparent inconsistencies I've run across 
> using scanimage, but I don't remember them now.
> None of these issues are a big deal, but I was wondering if I was missing something here.
> Thanks for your help,
> Peter
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