[sane-devel] sane_read() parameters

[m. allan noah]

maxlen is provided by the caller of the function, to tell the backend
how much memory the caller has allocated for image data.

allan

On Tue, Mar 8, 2016 at 3:09 AM, ky gcp <kygcpsample at gmail.com> wrote:
> hi,
>
> how is the argument maxlen determined in sane_read() function?
>
> SANE_Status sane_read (SANE_Handle h, SANE_Byte * buf, SANE_Int maxlen,
> SANE_Int * len);
>
> Thanks for your help.
>
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