Actor Frame's Basic - Launch Actor

[dgd.gomez]

I have a problem, I have a single "Actor Core". When we use the "Launch Actor" to "Open Actor Core Front Panel", it is possible to know if already "Actor Core" is launched actor, and put forward. I call several times to "Launch Actor", an "Actor Core" every time the call is made, instead opens, I want to have a single "Actor Core", and should be open, bring the front to the front panel. It's possible?

[tst · Accepted solution]

The answer is no - the AF is designed to launch multiple copies of the process. If you want to use a single copy (basically a variation on the singleton pattern, which is a term you can look up), you will need to code this yourself.

One simple option is to use a non-reentrant VI. On first call (there's a primitive which returns this) launch the actor and place its enqueuer into a shift register or feedback node. If first call is F, take the enqueuer from the feedback node and send an "open" message to the actor, or simply return its enqueuer.