线程键盘钩子实例-游戏窗口中呼出外挂（VC、SDK）

///////////////////////
//GameDll.cpp
//生成DLL文件
//////////////////////
#include <windows.h>
#include "resource.h"

HHOOK hkGame;

int CALLBACK DlgProc(HWND hDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
    switch(uMsg)
    {
    case WM_CLOSE:
        {
            MessageBox(0,"关闭对话框",0,0);
            EndDialog(hDlg,0);
        }
        break;
    }
    return 0;
}

LRESULT CALLBACK KeyboardProc(
                              int code,       // hook code
                              WPARAM wParam,  // virtual-key code
                              LPARAM lParam   // keystroke-message information
                              )
{
    if (code<0)
        return CallNextHookEx(hkGame,code,wParam,lParam);
    if (wParam==VK_F10 && lParam&0x40000000)
    {
        MessageBox(0,"F10被按下",0,0);
        DialogBox(GetModuleHandle("GameDll.dll"),MAKEINTRESOURCE(IDD_DIALOG1),FindWindow(NULL,"MyGame"),DlgProc); //第一个参数也可以写作：(HMODULE)LoadLibrar("GameDll.dll")
        return 1;
    }
    return 0;
}

extern "C" __declspec(dllexport) void StartHook()
{
    DWORD TID=GetWindowThreadProcessId(FindWindow(NULL,"MyGame"),NULL);
    if (!TID)
    {
        MessageBox(0,"没打开游戏！",0,MB_OK);
        return;
    }

    hkGame=SetWindowsHookEx(WH_KEYBOARD,KeyboardProc,GetModuleHandle("GameDll.dll"),TID);
    if (!hkGame)
        MessageBox(0,"HOOK失败！",0,MB_OK);
}

 

// EXE.cpp : Defines the entry point for the application.
//注入器

#include "stdafx.h"
#include "resource.h"
#pragma comment(lib,"GameDll.lib")

__declspec(dllimport) void StartHook();

int CALLBACK DlgProc(HWND hDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
    switch (uMsg)
    {
    case WM_CLOSE:
        EndDialog(hDlg,0);
        break;
    case WM_COMMAND:
        {
            if (LOWORD(wParam)==IDB_HOOK)
            {
                StartHook();
            }
        }
        break;
    }
    return 0;
}

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
     // TODO: Place code here.
    return DialogBox(hInstance,MAKEINTRESOURCE(IDD_DIALOG1),NULL,DlgProc);
}