Pfthb

I have been looking for an equivalent to kbhit() and I have read several forums on this subject, and the majority seems to suggest using ncurses.

How should I go about checking if a key is pressed in c++ using ncurses.

The function getch() provided by ncurses reads character from the window.
I would like to write a function that only checks if there is a key press and then I want to do getch().

Thanks in advance.

You can use the nodelay() function to turn getch() into a non-blocking call, which returns ERR if no key-press is available. If a key-press is available, it is pulled from the input queue, but you can push it back onto the queue if you like with ungetch().

#include <ncurses.h>
#include <unistd.h> /* only for sleep() */

int kbhit(void)

 int ch = getch();

 if (ch != ERR) 
 ungetch(ch);
 return 1;
 else 
 return 0;
 


int main(void)

 initscr();

 cbreak();
 noecho();
 nodelay(stdscr, TRUE);

 scrollok(stdscr, TRUE);
 while (1) 
 if (kbhit()) 
 printw("Key pressed! It was: %dn", getch());
 refresh();
 else 
 printw("No key pressed yet...n");
 refresh();
 sleep(1);