How to compile/run simple programs in Windows 8.1 from terminal?

[robgeek]

Hi!

I have Windows 8.1 64bit and i installed QtCreator 5.4.1 with MinGw 4.9.1. I would like to make some simple console programs using
my text editor, not QtCreator, and compile/run them using the terminal.

//test code.
#include <QCoreApplication>
#include <iostream>
 
using namespace std;
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
 
    cout << "Hello!" << endl;
 
    return a.exec();
}

//test code.
#include <QCoreApplication>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    
    cout << "Hello!" << endl;

    return a.exec();
}

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Terminal command i used:

g++ -o test main.cpp

g++ -o test main.cpp

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Error message:

main.cpp:1:28: fatal error: QCoreApplication: No such file or directory
#include <QCoreApplication>
compilation terminated.

I added "C:\Qt\Tools\mingw491_32\bin" in "Environment Variables" so, when i enter with g++ --version in terminal i get "g++ ... 4.9.1".

How can i do what i want?