Jim,
Miyako's post is a concise primer for modern 4D forms. Being able to pass a
pointer to a dynamic form variable to another process, even one running on
the server, is a great feature and one I've been using for several years.
Let me share a couple of things I've learned doing this:
- avoid
there is a "poor man's interprocess messaging" technique, that works without
workers or preemptive processes.
on your form, you have objects. the data source can be form local (a.k.a.)
variables.
you get pointers to the objects (OBJECT Get pointer).
you pass those objects to New process. the
I am looking into using CALL WORKER / CALL FORM for an interface where certain
actions will query a service, which could take up to a few seconds. Using CALL
WORKER and CALL FORM would allow me to split the long-running part to the
worker without having to roll my own IP messaging and the On
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