[sane-devel] [sane-commit] [SCM] SANE backends - scanner drivers branch, master, updated. RELEASE_1_0_21-248-gaaa34de

[m. allan noah]

On Mon, Nov 1, 2010 at 10:45 AM, stef <stef.dev at free.fr> wrote:
> Le Monday 01 November 2010 14:51:59 m. allan noah, vous avez écrit :
>> We need a way for authors of button handling programs to figure out
>> what sensors a scanner exposes. Yes, they can use libsane to query the
>> options, but then a third user would have to install the button
>> daemon, just to find out if there are any sensors. I'd rather that
>> scanimage could tell us.
>>
>> We have several options- improve the 'read only' text, change
>> fetch_options() to print an improved warning if the user tries to set
>> those options, or your suggestion of hiding them unless an arg is
>> given. I would pick something other than '--query', but any of these
>> choices is fine with me.
>>
>> Opinions?
>>
>> allan
>
>        Hello,
>
>        I think there are different points to answer. First there is a bug to
> fix: the --help argument (which is geared to scanimage command line usage)
> shouldn't print command line options that cannot be used.
>        Second listing all the options a backend provides including buttons is
> useful. It will better served with a specific argument (--list-options / --
> list-buttons / --show-options ?). I'll submit a patch that brings such an
> argument for everyone to review.

how about --all-options?

allan

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