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c++pythonstdinpiping

How can I make a C++ program read arguments passed into it with Python subprocess.call()?

Basically I am making a Python program and part of it needs to run a C++ executable, I am calling the exe with:

subprocess.call(["C:\\Users\\User\\Documents\\Programming\\Python\\Utilities\\XMLremapper\\TranslatorSource\\FileFixer.exe", "hi"])

But how do I make the C++ program read the input? I tried:

FILE * input = popen("pythonw.exe", "r");
cout<< input.getline() << endl << endl;

But that just outputs 0x22ff1c and definitely not "hi". What code is needed to pipe the input into the C++ program?

Solution

  • They are passed as parameters to the main function.

    main(int argc, char *argv[])

    argc is the length of argv. So it would be 

    main(int argc, char *argv[])
{
 cout<<argv[1];
 return 0;
}