Tip of the day - VIDEO SYNC w/o degrading performance

[John Esak]

Ken,
Thanks! This is very good to have. Much appreciated.
John



> -----Original Message-----
> From: filepro-list-bounces at lists.celestial.com
> [mailto:filepro-list-bounces at lists.celestial.com]On Behalf Of Kenneth
> Brody
> Sent: Thursday, January 12, 2006 12:31 PM
> To: filePro mailing list
> Subject: Tip of the day - VIDEO SYNC w/o degrading performance
>
>
> As I'm sure you know, filePro updates the screen only once a second while
> doing things like building an index or generating output.  (Unlike what it
> used to do, which was update the screen every 100 records, which nowadays
> would be nearly continuously.)
>
> Also, there are times in your own code where you want the screen to be
> updated as you're doing things, so you put a VIDEO SYNC at places, to make
> sure that the messages are shown.  However, doing so may also slow things
> down if you are forcing the screen to be updated rapidly.
>
> Here's a quick routine to get the screen updated, but only once a second.
> Rather than doing a VIDEO SYNC, call this routine:
>
>     VidSync
>         Then:  Declare LastTime(8,hms,g)
>           If:  LastTime ne @tm
>         Then:  video sync ; LastTime = @tm
>         Then:  return
>
> Of course, there may be times you need to use VIDEO SYNC directly, but in
> the cases where it's not completely necessary (perhaps you have a loop in
> output processing, and you want the status to be updated to let the user
> know it's not frozen, as filePro won't force the update except between
> records), this subroutine could be quite handy.
>
> --
> +-------------------------+--------------------+------------------
-----------+
> | Kenneth J. Brody        | www.hvcomputer.com |
>            |
> | kenbrody/at\spamcop.net | www.fptech.com     | #include
> <std_disclaimer.h> |
> +-------------------------+--------------------+------------------
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