[sane-devel] help with a frontend, please

[m. allan noah]

what makes you say that the values are unchangeable, do you get an error?

allan

On Wed, 22 Mar 2006, Felix Rubio Dalmau wrote:

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> Hi!
> here is the part of the code I want to use to change the settings,
> but they are still unchangeable. Is there anything wrong?
>
>    valor2=Xo;
>
> estat=sane_control_option(gestor,22,SANE_ACTION_SET_VALUE,&valor2,valor);
>    printf("%s: ",sane_strstatus(estat));
>    valor2=Yo;
>
> estat=sane_control_option(gestor,23,SANE_ACTION_SET_VALUE,&valor2,valor);
>    printf("%s: ",sane_strstatus(estat));
>    valor2=Xo+WIDTH;
>
> estat=sane_control_option(gestor,24,SANE_ACTION_SET_VALUE,&valor2,valor);
>    printf("%s: ",sane_strstatus(estat));
>    valor2=Yo+HEIGHT;
>
> estat=sane_control_option(gestor,25,SANE_ACTION_SET_VALUE,&valor2,valor);
>    printf("%s\n",sane_strstatus(estat));
>
> What should I write to make the changes permanent? I need to change
> the dimensions of what is scanned, but I don't know how to do it.
>
> Message: 4
> Date: Tue, 21 Mar 2006 10:33:41 -0500 (EST)
> From: "m. allan noah" <anoah at pfeiffer.edu>
> Subject: Re: [sane-devel] Help with a frontend, plis
> To: sane-devel at lists.alioth.debian.org
> Message-ID: <Pine.LNX.4.61.0603211032280.9757 at limos.pfeiffer.edu>
> Content-Type: text/plain; charset="iso-8859-1"
>
> are you calling sane_get_parameters() after you have changed the options?
>
> allan
>
> - --
> Josep Felix Rubio Dalmau
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