how to detect key presses

[maxum]

I am making a REAL program, named shUI. It is a shell program
designed to help those whose computer isn't strong enough to
support the X window system.
I'm stuck here:

#include <iostream>
#include <fstream>
#include <stdlib.h>
using namespace std;
int main(){
int frm1();
frm1();
};
void frm1(){
cout << " ________________________\n";
cout << "|   \\_____Setup______/   |\n";
cout << "| ______________________ |\n";
cout << "||  Welcome to shUI's   ||\n";
cout << "||installation program! ||\n";
cout << "||                      ||\n";
cout << "||                      ||\n";
cout << "||                      ||\n";
cout << "||______________________||\n";
cout << "| <Quit |        | Next> |\n";
cout << "`------------------------'";
cout << "";
}

I want to move through the installation with the direction keys.

[Peter87]

It's not possible using standard C++. You will have to use system calls or use a library like ncurses.

[Pravesh Koirala]

#include <iostream>
#include <fstream>
#include <conio.h>
using namespace std;

const unsigned char Key1 = 224;
const unsigned char LEFT = 75;
const unsigned char RIGHT = 77;
const unsigned char UP = 72;
const unsigned char DOWN = 80;


int main(){
int frm1();
frm1();
};
void frm1(){
cout << " ________________________\n";
cout << "|   \\_____Setup______/   |\n";
cout << "| ______________________ |\n";
cout << "||  Welcome to shUI's   ||\n";
cout << "||installation program! ||\n";
cout << "||                      ||\n";
cout << "||                      ||\n";
cout << "||                      ||\n";
cout << "||______________________||\n";
cout << "| <Quit |        | Next> |\n";
cout << "`------------------------'";
cout << "";

unsigned char choice = getch();
cout << endl;
if (choice == Key1)
    {
        unsigned char choice2 = getch();
        switch(choice2)
        {
            case LEFT:
                cout << "You Pressed Left ";
                break;
            case RIGHT:
                cout << "You Pressed Right";
                break;
            case UP:
                cout << "You Pressed Up";
                break;
            case DOWN:
                cout << "You Pressed Down";
                break;
        }
    }

return ;

}

[Peter87]

I doubt the maxum wants to use conio.

I can recommend ncurses.

[maxum]

I need to ask you the following things:
1. How to make cout (or a variant of it) scroll horizontally if the text exceeds the determined limit?
2. How to set where cout will print on the screen