尝试不阻塞地读取键盘输入（Windows，C ++）

Question

I'm trying to write a Windows console application (in C++ compiled using g++) that will execute a series of instructions in a loop until finished OR until ctrl-z (or some other keystroke) is pressed. The code I'm currently using to catch it isn't working (otherwise I wouldn't be asking, right?):

if(kbhit() && getc(stdin) == 26)
  //The code to execute when ctrl-z is pressed

If I press a key, it is echoed and the application waits until I press Enter to continue on at all. With the value 26, it doesn't execute the intended code. If I use something like 65 for the value to catch, it will reroute execution if I press A then Enter afterward.

Is there a way to passively check for input, throwing it out if it's not what I'm looking for or properly reacting when it is what I'm looking for? ..and without having to press Enter afterward?

Answer 1

尝试使用ReadConsoleInput以避免cooked模式，并使用GetNumberOfConsoleInputEvents来避免阻塞。

Answer 2

If G++ supports conio.h then you could do something like this:

#include <conio.h>
#include <stdio.h>

void main()
{
    for (;;)
    {
        if (kbhit())
        {
            char c = getch();
            if (c == 0) {
                c = getch(); // get extended code
            } else {
                if (c == 'a') // handle normal codes
                    break;
            }
        }
    }
}

This link may explain things a little more for you.