Jak zapisać do stringa wiersz z konsoli?

#include <iostream>
#include <windows.h>


std::string read()
{
    CONSOLE_SCREEN_BUFFER_INFO csbi;
    GetConsoleScreenBufferInfo( GetStdHandle( STD_OUTPUT_HANDLE ), & csbi );
    COORD coord;
    coord.X = 0;
    coord.Y = csbi.dwCursorPosition.Y;
    char tab[ 80 ];
    unsigned long read;
    ReadConsoleOutputCharacter( GetStdHandle( STD_OUTPUT_HANDLE ), tab, 80, coord, & read );
   
    std::string result;
    result.append( tab, read );
   
    return result;
}

int main()
{
    std::cout << "Hello world!";
    std::string linia = read();
    std::cout << std::endl << std::endl << linia;
   
   
    return 0;
}