On Fri, Mar 27, 2020 at 8:01 PM Douglas von Roeder <dvonroe...@gmail.com>
wrote:

> Peter:
>
> "Worker cannot display anything.”
> Why do you say that?
>

My understanding of a worker is a process that can (potentially) run on
different core or processor - what means, communicating with other
processes with messages only, limited ability to share data, no
interprocess variables, no GET / SET PROCESS VARIABLE and no UI.

However, thinking about it, as user process is a worker, and it should be
able to display UI, collaborative workers may be able to display UI. But
all 4D examples of worker's code use CALL FORM to display UI, so I would
not try to display UI from a worker.

Peter Bozek
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