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);
}