[sane-devel] [BUG] xcanimage: some buttons have to be disabled while scanning

[Aurelien Jarno]

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Le Jeudi 17 Octobre 2002 21:02, vous avez écrit :
[...]
> > - While scanning some options are disabled (for example gamma), but
> > if you change something in the "Preferences" menu, they are enabled
> > again.
>
> I can't reproduce that but my scanners don't have a gamma table. Are
> other options also enabled again? Can you show an example? Disabling
> "advanced options" during scanning seems to remove nearly all options
> when using the test backend :-/
>

I said gamma for example, but the problem is also present for others 
options such as "Scan Resolution".
To reproduce that:

- - Start a scan or a preview. 
All options in Scan Mode (Scan resolution ans Scan mode) and in 
Enhancement (Quality calibration, all Gamma options, Brightness, 
Contrast, Geometry options) are disabled, you can't change them.

- - Then in the Preferences menu, select "Length units" -> "millimeters"
All options are enabled again, but if you try to change them xscanimage 
return you "Failed to set value of option contrast: Device Busy"

Aurelien
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