在Linux上使用kbhit（）和getch（） [英] Using kbhit() and getch() on Linux

问题描述

在Windows上，我有以下代码来查找输入，而不中断循环：

On Windows, I have the following code to look for input without interrupting the loop:

#include <conio.h>
#include <Windows.h>
#include <iostream>

int main()
{
    while (true)
    {
        if (_kbhit())
        {
            if (_getch() == 'g')
            {
                std::cout << "You pressed G" << std::endl;
            }
        }
        Sleep(500);
        std::cout << "Running" << std::endl;
    }
}

但是，看到没有 conio.h ，在Linux上实现这个最简单的方法是什么？

However, seeing that there is no conio.h, whats the simplest way of achieving this very same thing on Linux?

推荐答案

上面引用的ncurses如何帮助。下面是一个例子，说明如何使用ncurses如conio示例：

The ncurses howto cited above can be helpful. Here is an example illustrating how ncurses could be used like the conio example:

#include <ncurses.h>

int
main()
{
    initscr();
    cbreak();
    noecho();
    scrollok(stdscr, TRUE);
    nodelay(stdscr, TRUE);
    while (true) {
        if (getch() == 'g') {
            printw("You pressed G\n");
        }
        napms(500);
        printw("Running\n");
    }
}

注意，对于ncurses， iostream 头不使用。这是因为混合stdio和ncurses可能有意想不到的结果。

Note that with ncurses, the iostream header is not used. That is because mixing stdio with ncurses can have unexpected results.

ncurses，顺便说一句，定义 TRUE code> FALSE 。正确配置的ncurses将使用与ncurses bool 相同的数据类型作为用于配置ncurses的C ++编译器。

ncurses, by the way, defines TRUE and FALSE. A correctly configured ncurses will use the same data-type for ncurses' bool as the C++ compiler used for configuring ncurses.

这篇关于在Linux上使用kbhit（）和getch（）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！