I'm not convinced that FSPACE(fn,-1) really does work reliably with CM KSAM:
How can it?  All the docs I've read (ie not all of them!) indicate that the
indices are single-threaded, leaving reliable backspace theoretically
impossible: there is no backward pointer like there is on Image paths.
Please tell me I'm wrong?

Tracy (expecting correction) Pierce

> -----Original Message-----
> From: Jeff Kell [mailto:[log in to unmask]]
> Sent: Thursday, April 10, 2003 7:10 PM
> To: [log in to unmask]
> Subject: Re: FSPACE and KSAM
>
>
> John Pitman wrote:
>  > Having found that FSPACE(fn ,-1) does a logical (key
> sequence) backup
>  > in CM KSAM, does anybody know if it will also work on NM
> KSAM please?
>
> It works in the positive direction at least.  We have a common routine
> (name search) that pulls a screenful (20 recs) of matches
> from a common
> starting point by ffindbykey/fspace(x) to the starting point
> of the next
> screen, read 20 recs, display, if they want more, x=+20, iterate.
>
> In this case, CM code works on KSAMXL :-)
>
> Jeff
>
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