Source Code File 08-02_keywait1

08-02_keywait1.c

#include <ncurses.h>
   
int main()
{
    int value = 0;
    
    initscr();

    addstr("Press any key to begin:\n");
    refresh();
    getch();
    
/* turn off getch() wait */
    nodelay(stdscr,TRUE);
    addstr("Press any key to stop the loop!\n");
    while(getch() == ERR)
    {
        printw("%d\r",value++);
        refresh();
    }   
    
    endwin();   
    return 0;
}

Output Screenshot

Notes

* In this configuration, with nodelay() set, the getch() function returns ERR when a key is unavailable. Returning this constant doesn't indicate a problem, just that a key isn't waiting.

← 08-01_yourname.c — 08-03_keywait2.c →