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 that constant doesn't indicate a problem, just that a key isn't waiting.
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