Henning Meier-Geinitz wrote: > * All backends should check for TL_X < BR_X and TL_Y < BR_Y to > avoid segfaults or even scanner damage. This should NOT be done > in sane_control_option, it should be possible to temporary set > TL_X > BR_X or TL_ > BR, otherwise it is hard for a frontend to > set the correct values. Hi, Henning. I take it sane_start is the correct place to check for this, right? What is the correct response? Perhaps it should return SANE_STATUS_INVAL, but the SANE standard doesn't list this as a possibility. Another option, which is what I did in the hpoj backend, would be for the backend to keep shadow copies of the "effective" values for these options and swap the top and bottom values for X and Y if necessary.
David
