<br><br><div class="gmail_quote">On Sun, Jun 21, 2009 at 11:33 AM, Jeffrey Ratcliffe <span dir="ltr"><<a href="mailto:jeffrey.ratcliffe@gmail.com">jeffrey.ratcliffe@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
2009/6/20 m. allan noah <<a href="mailto:kitno455@gmail.com">kitno455@gmail.com</a>>:<br>
<div class="im">> But, back to Jeffrey's request- is it enough to know ADF or not and Duplex<br>
> or not in the params struct, or do you need to know that sooner? Also, it<br>
> would be good to know which side of the duplex scan this is...<br>
<br>
</div>For me, it is all about predicting the page numbering. For a flatbed,<br>
you only want to scan one image, and for any more than that, provide a<br>
delay or a prompt giving the user time to change sheets. Scanning<br>
double-sided sheets from a non-duplex ADF require the page numbering<br>
to be inc/decremented by 2.</blockquote><div><br>unless the pages are single sided prints. it would seem that only the user could know that information, so it is probably a good idea to ask them instead of the backend... <br>
<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
It would be better for the frontend to know this sooner than the param<br>
struct, as that way you can only offer the options that are currently<br>
possible.</blockquote><div><br>agreed.<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> I assume, though, that this would require all options to be<br>
reloaded. If this is a problem, getting the information in the param<br>
struct would certainly be better that then current situation.</blockquote><div><br>Well, if we dont use params, our only choice with the current API is more well-known options. One advantage of moving maintained backends to a new package would be the possibility of regularizing/requiring such options...<br>
</div></div><br>allan<br>-- <br>"The truth is an offense, but not a sin"<br>