How to Implement the getch () function and the getch Function

How to Implement the getch () function and the getch Function
To use the getch () function, you must first introduce the conio. h header file.

However, I use cygwin as the compiling environment and cannot find conio. h. Therefore, I can only find an alternative method or construct a function with similar functions by myself.

Unfortunately, it wasn't long before I learned programming. At the moment, I didn't think of a proper alternative method. If I say I constructed this function myself, it would be even harder.

So Baidu finally found a clever way.

The principle is: temporarily disable the terminal cache and use getchar () to directly obtain the buttons, instead of waiting for the Enter key to take effect.

The test code is as follows:

1 # include

2 # include

3

4 int my_getch (void );

5

6 int main (void ){

7

8 while ('q '! = My_getch ()){

9 printf ("hello \ n ");

10}

11

12 return 0;

13}

14

15

16

17 int my_getch (void ){

18 char;

19 system ("stty-icanon"); // disable the terminal Buffer

20 system ("stty-echo"); // disable Terminal echo

21 a = getchar ();

22 system ("stty icanon"); // open the terminal Buffer

23 system ("stty echo"); // enable terminal echo

24 return;

25}