转自在游戏中使用keybd_event的问题

今天发现在游戏中，keybd_event不能使用，结果发现游戏是使用directinput实现读取键盘的，关键还是扫描码的问题，我抄了一段老外的代码，经测试有效（在金庸中测试重复输入空格）：

#include <iostream>

#include <windows.h>

// for key pushing

BYTE scan_code(DWORD pKey)

{

    const DWORD result = MapVirtualKey(pKey, MAPVK_VK_TO_VSC);

    return static_cast<BYTE>(result);

}

void press_key(DWORD pKey)

{

    keybd_event(static_cast<BYTE>(pKey), scan_code(pKey), 0, 0);

}

void release_key(DWORD pKey)

{

    keybd_event(static_cast<BYTE>(pKey), scan_code(pKey), KEYEVENTF_KEYUP, 0);

}

// for testing

#define PRESS(x) press_key(x); std::cout << "Press: " #x << std::endl

#define RELEASE(x) release_key(x); std::cout << "Release: " #x << std::endl

// test

int main(void)

{

    for (;;)

    {

        PRESS(VK_LEFT);

        Sleep(10); // hold it for 1/100'th of a second

        RELEASE(VK_LEFT);

        Sleep(1000); // wait for a second

        PRESS(VK_RIGHT);

        Sleep(10); // hold it for 1/100'th of a second

        RELEASE(VK_RIGHT);

        Sleep(1000); // wait for a second

    }

}