get ascii code for keys

arrow.c

// gcc -o arrow arrow.c -lcurses
#include <curses.h>
#include <stdio.h>

int main(void)
{
    int ch = 0;

    initscr();
    cbreak();
    noecho();
    nonl();
    intrflush(stdscr, FALSE);
    keypad(stdscr, TRUE);
    
    printw("Type a key. Use 'q' to quit\n");
    while (ch != 'q') {
        ch = getch();
        printw("You typed: '%c' which is ASCII %d\n", (char) ch, ch);
    }

    endwin(); 
    return 0;
}