PJL FSDIRLIST ???

[Niels S. Eliasen]

On 2012-10-05, Helge Blischke <h.blischke at acm.org> wrote:
> Niels S. Eliasen wrote:
>
>> On 2012-10-05, Helge Blischke <h.blischke at acm.org> wrote:
>>> Niels S. Eliasen wrote:
>>>
>>>> hi guys
>>>> question: Having the PJL command:
>>>> 
>>>> ^[%-12345X at PJL FSDIRLIST NAME="0:\pcl\macros" ENTRY=1 COUNT=999999
>>>> ^[%-12345X
>>>> 
>>>> does not give any output of all the macros stored in the macro
>>>> directory... In fact this command does not give any output at all.....
>>>> 
>>>> Could someone please shed some light on this ?
>>>> 
>>>> PS: the command is stored in a textfile and printed using "lp -o raw
>>>> textfile -d printername"
>>>> 
>>>> tia
>>>> niels
>>>
>>> Where do you expect the response to appear?
>>> According to the PJL reference manual, the response is returned on the
>>> "backchannel" in CUPS speech.
>> ok.. according to the manuals that I have read.. it should come out on
>> paper.... I can be mistaken.. but that's the impression that I have
>> got.... "backchannel" ... means ??? or in other words any way to ge this
>> out on paper/mail/whatever?
>>>
>>> Helge
>>>
>
> Provided your cups version is recent enough, you'll find a DEBUG message in 
> the error_log indicating how many bytes of backchannel data have been 
> received. But, as far as I know, there currently is no default destination 
> where the backchannel data would be written to, but you may easily implement 
> a special filter that reads these data and digests it as you like, as the 
> standard filter and backend interface provides a file descriptor to read the 
> backchannel data from, fd number 3, if I remember correctly.
>
> Helge
>
Hello Helge
All very great! And thanks for the tips!
But please... As I am _not_ in any way a programmer type...
Could you elaborate a bit, as how to go about this ?