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kbhit() Function in C++ Programming Language
kbhit() Function in C++
The kbhit is basically the Keyboard Hit. This function is present at conio.h header file. So for using this, we have to include this header file into our code. The functionality of kbhit() is that, when a key is pressed it returns nonzero value, otherwise returns zero.
kbhit() is used to determine if a key has been pressed or not. If a key has been pressed then it returns a non zero value otherwise returns zero.
Syntax for kbhit() Function in C++
#include <conio.h>
int kbhit();
/* kbhit() function is not defined as part of the ANSI C/C++ standard. It is generally used by Borland's family of compilers. It returns a non-zero integer if a key is in the keyboard buffer. It will not wait for a key to be pressed. */
// C++ program code example to fetch key pressed using kbhit()
#include <conio.h>
#include <iostream>
int main()
{
char ch;
while (1) {
if (kbhit) {
// Stores the pressed key in ch
ch = getch();
// Terminates the loop
// when escape is pressed
if (int(ch) == 27)
break;
cout << "Key pressed= " << ch;
}
}
return 0;
}
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