Hi, On Sat, May 24, 2003 at 12:00:12PM +0200, pierre wrote: > I'm developping a front end with GTK 1.2
That's nice. You know that there are already a few of those (XSane, xscanimage, xcam)? > with sane_get_parameters I always recieve SANE_FRAME_RGB (=1) format > otherwise i set the option mode = 0 Which backend do you use? > I try with > sane_control_option(h,i,SANE_ACTION_SET_VALUE,&integer,&n) > where i = 1,integer = 0 Have you checked what kind of option "mode" is? I would be surprised if it is an integer option. If it's a string option with a string list constraint you must use a pointer to a string, not a pointer to an integer. See the SANE standard for details. > Is there any solution or the scanner will always scan in RGB and the > frontend should convert RGB to Black and white ? Depends on the backend and scanner but I guess most scanner can do gray scans. Bye, Henning
