Moving with a character in ASCII ART

[JordyB]

Hey I'm a student and I have a little problem. I don't know how I can navigate with a character in an txt file. Some people said to me that I must use GetAsyncKeyState

  int main ()
{

    SetWindow(170,60);
    string line;
    ifstream myfile ("images/Megahero.txt");
    if (myfile.is_open())
    {
        while ( getline (myfile,line) )
        {
            cout << line << endl;
        }
        myfile.close();
    }

    else cout << "Unable to open file";
    cout<<" \nPress any key to continue\n";
    cin.ignore();
    cin.get();
    system("cls");

    intro();


    return 0;
}
void SetWindow(int Width, int Height)
{
    _COORD coord;
    coord.X = Width;
    coord.Y = Height;

    _SMALL_RECT Rect;
    Rect.Top = 0;
    Rect.Left = 0;
    Rect.Bottom = Height - 1;
    Rect.Right = Width - 1;

    HANDLE Handle = GetStdHandle(STD_OUTPUT_HANDLE);      // Get Handle
    SetConsoleScreenBufferSize(Handle, coord);            // Set Buffer Size
    SetConsoleWindowInfo(Handle, TRUE, &Rect);            // Set Window Size
}
void world()
{
    string line;
    ifstream myfile ("images/map.txt");
    if (myfile.is_open())
    {
        while ( getline (myfile,line) )
        {
            cout << line << endl;
        }
        myfile.close();
    }

    else cout << "Unable to open file";
}