Tried to redirect cout & cerr to QTextEdit instead of Console, but not working!

[danadam]

QDebugStream cout(std::cout, textEdit);
    QDebugStream cerr(std::cerr, textEdit);
    cout <<"Hello! We are ready for working" << endl;

QDebugStream cout(std::cout, textEdit);
    QDebugStream cerr(std::cerr, textEdit);
    cout <<"Hello! We are ready for working" << endl;

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You are trying to write to QDebugStream and you should write to std::cout, so try this:

std::cout <<"Hello! We are ready for working" << std::endl;

std::cout <<"Hello! We are ready for working" << std::endl;

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instead.