Interface with a precompiled program

Asked Jul 29 '21 at 07:07

Active Jul 29 '21 at 07:44

Viewed 49 times

How do I take an already - compiled program (Console App) and communicate with it via my C++ code? Such that "printing" into the program will be the same as a user that types what I print into the console of the program, and "reading" from it read what the program as written into the console?

Here is a pseudocode of what I want (preferably without external libraries):

//also start (run) the program somehow
ProgramStream programStream = createStream("somepath/someprogram.exe")

programStream << "This will be written into the console of someprogram.exe" <<endl;

string result;
ProgramStream >> result; //gets what the program prints back

edited Jul 29 '21 at 07:44

Botje

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asked Jul 29 '21 at 07:07

Aviv Vetaro

Boost.Process + Boost.Asio – Evg Jul 29 '21 at 07:09
@Evg isn't it an external ibrary? – Aviv Vetaro Jul 29 '21 at 07:20
It is. There is no standard way to do it. – Evg Jul 29 '21 at 07:24
Under Linux you can use PTYs and/or standard IOstream communication. – Botje Jul 29 '21 at 07:46
@Botje I use Windows – Aviv Vetaro Jul 29 '21 at 07:47
If you're using windows [this](https://learn.microsoft.com/en-us/windows/win32/procthread/creating-a-child-process-with-redirected-input-and-output?redirectedfrom=MSDN) might help. – Wahalez Jul 29 '21 at 07:53
@Evg how do I use this "boost" library? – Aviv Vetaro Jul 29 '21 at 09:14

Interface with a precompiled program

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