The most common idiom for in-process communication on Windows?

Question

I have a very simple interface that needs to communicate between processes. Currently it is implemented in a very simple way (all separate processes):

bool GetFoo(struct Foo *outFoo);
bool GetBar(struct Bar *getBar);

For instance:

Foo foo;
if (!GetFoo(&foo))
{
    ReportError();
}

GetFoo fills the Foo data structure with clean data (that is, without pointers, this is purely flashing data).

I need to convert this call while working between two processes on the same machine (in this case, it is always the same machine). Is there a common idiom for cross calls in C ++ on Windows? Is there any kind of communication within the process supported by Windows? Should I use shared memory instead?

One note: I don't want to depend on anything other than the Windows API, if at all possible.

Answer 1

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IPC, Windows.

Answer 2

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Answer 3

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Answer 4

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