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Background tasks using SharedObjects
  1. New
  2. How-to
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  1. Bernhard Stoeter
  2. PowerBuilder
  3. Tuesday, 23 December 2025 08:50 AM UTC

Hi together,

 

I start a background task (is uses a “callback” nvo):

…
for li_I = 1 to 1024
      OutputDebug( string( li_I ))
      Sleep(1)
end for
…

Watching the output via SysInternals DebugViewer shows that it works as expected: 1, 2, 3, … every second.

When I call i.e. Sleep(5) in the foreground/GUI task the execution of the background task is interrupted and continues running after 5 seconds.

What is the reason for this behaviour and how can I “sleep” the foreground/GUI task without disturbing the background task (same process id different thread id)?

Btw: Using Windows Kernel32.dll sleep() I run into the same problem.

Thanks in advance,

Bernhard

 Merry Christmas Everyone! [ERROR]The sdk file pb_sdk.pbd does not exist in PB2025 - 37...
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