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In ANSI C on Windows what is the best/easiest way to transfer data between two programs running locally without needing to write/read from a file? Data will be basic text and only one program will be sending and the other receiving. Thanks.
Inter-process communication is inherently platform-dependent; “ANSI C” doesn’t have anything to say about this, but you should start here for Windows:
http://msdn.microsoft.com/en-us/library/aa365574(VS.85).aspx
Much depends on the kinds of applications you’re talking about, and the volume of data, and how tightly coupled the processes are.