Implement best way for console apps to "talk to each other"?

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There are two apps on a machine. I would like to have a way for these apps to see variable values of the other. App A has a changing variable called "foo." App B (running the same machine) would like to know what value this variable foo is but cannot. Thank you computer gurus.

What I have tried:

I have the two apps running at the same time, but not quite sure how to have the variables be "shared".

Posted 6-Sep-24 3:20am

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CHill60 · Accepted Answer · 2024-09-06T03:35:00

Historically (and I do mean "a long time ago") we did this with Memory Mapped Files (Search CodeProject[^]) and also with Named Pipes (Search CodeProject[^]). You could also do it with Sockets (Search CodeProject[^]) - I haven't personally done that.
"Best" is an objective word - do the research (see the links) and you decide which method is best for what you are trying to do