1. Sivaprakash BKR
  2. PowerBuilder
  3. Thursday, 30 November 2023 05:15 AM UTC


PB 2022 R2 build 2819

Is it possible to fire multi-timer events from one (service) application.   Say, if I want to

a.  Send Email, by checking a table for new records, every 10 seconds.
b.  Send SMS, by checking another table for new recrods, every 1 hour.
c.  To take backup of database according to a settings, [ every one hour or at a prefixed time of a day eg. 5 pm everyday ]

The list could expand.
I've done one task in one service application, by using windows timer event.  Don't have any idea how to accomplish multi-timer events in one application.

Any idea would be greatly appreciated.

Also for point c above, how to fire an event at a particular time every day? Should we check the system's time every 1 second?

Happiness Always
BKR Sivaprakash


Miguel Leeuwe Accepted Answer Pending Moderation
  1. Thursday, 30 November 2023 05:40 AM UTC
  2. PowerBuilder
  3. # 1


Yes it's possible. Simply use a timer object for each of your tasks.

For c), I'd rather use a windows task, but it's not impossible doing so from PB either.


  1. Chris Pollach @Appeon
  2. Friday, 1 December 2023 15:44 PM UTC
Hi Miguel;

I agree 100% to use the TIMIER object class in PB to implement these timed activities! I use this feature in my STD Framework exclusively for various time based activities. The key advantages are that: A) You can use them on non-Windows Apps; B) Both visual & non-Visual objects can use it; C) The Timer object features can be encapsulated; D) Multi-Threaded Apps can use this in each "thread", etc. Very versatile IMHO!


Regards ... Chris
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