try running it under gdb and take a backtrace?
allan
On Mon, 20 Jun 2005, Mohit Kumar wrote:
> Sorry for the confusion Allan. But no its not the case. Rather it is
> the following:
>
> else
> {
> //now for color
> }
> j++;
>
> Thanks,
> Mohit
>
> On 6/20/05, m. allan noah <an...@pfeiffer.edu> wrote:
>>
>> mohit, perhaps you mean
>>
>> else {
>> //now for color
>>
>> j++;
>> }
>>
>> note the braces.
>>
>> allan
>>
>> On Mon, 20 Jun 2005, Mohit Kumar wrote:
>>
>>> Hi All,
>>>
>>> I have the following piece of code: (kindly ignore the declarations..)
>>>
>>> options = sane_get_option_descriptor(handle, index); //index points to
>>> mode option
>>> int j=0;
>>> if(options!=NULL)
>>> {
>>> while(options->constraint.string_list[j])
>>> {
>>> if(strcmp(options->constraint.string_list[j] == "Grayscale"
>>> {
>>> SANE_Status status =
>>> sane_control_option(handle,index,SANE_ACTION_SET_VALUE,(SANE_String*)"Grayscale",0);
>>> .
>>> .
>>> .
>>> .
>>> }
>>> else
>>> //now for color
>>>
>>> j++;
>>> }
>>> }
>>>
>>> Now j=0 return Lineart, j=1 returns Halftone, j=2 returns Grayscale.
>>> But for j=3 (it should have returned "Color"), program crashes and it
>>> says cannot access memory at address 0x25.
>>>
>>> I have a HP ScanJet 6200C/6250C and I have verified it has all the four
>>> modes.
>>>
>>> Am i doing something wrong? I cannot understand why the fourth value
>>> is giving me problems while the first three have gone correct?
>>>
>>> Thanks,
>>> Mohit
>>>
>>> --
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>>>
>>
>> --
>> "so don't tell us it can't be done, putting down what you don't know.
>> money isn't our god, integrity will free our souls" - Max Cavalera
>>
>
--
"so don't tell us it can't be done, putting down what you don't know.
money isn't our god, integrity will free our souls" - Max Cavalera
