Question

I want function that combines the functions kbhit() and getch().
In other words, I want when the program works, if I pressed on ‘q’ key the program stops without has stopped temporarily in order to receive the character as does getch() function .
I want to combine between kbhit() advantage and getch() advantage .

I hope you understood my purpose .

Answer 1

kbhit tells you whether there’s a character waiting. getch will return the next character, wiating for one if it needs to. The only natural combination of the two that I can think of is one that will return a character if there is one, but won’t wait if there isn’t a character available. That’s easy to do, given you already have kbhit and getch:

/* Returns a character from stdin, if there is one.
 * Otherwise, returns -1. */
int getch_nonblocking(void)
{
  return kbhit() ? getch() : -1;
}