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Correct way to use WaitFor with a background worker.

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I have a background worker that I create with:

  FWorker := Parallel.BackgroundWorker

I queue jobs to this worker and everything works great .  I have a situation where I want to check if the worker is idle with a timeout, so I'm trying to use:


This seems to work in my test cases, however calling WaitFor calls "CompleteAdding" (which seems to make sense.)  However it never gets turned back on and future queueing of jobs raises "Adding to completed collection".


So is there a way to turn queueing back on, or am I doing something fundamentally wrong?   Thanks for any insight or tips!




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