钩子

在client.cpp中包含wgdlg.h
CDLGWG * GameForm = NULL;
HWND GameHwnd = NULL;
//钩子回调函数
LRESULT CALLBACK GameProc(int nCode,WPARAM wParam,LPARAM lParam)
{
    AFX_MANAGE_STATE(AfxGetStaticModuleState());
    PMSG pMsg=(PMSG)lParam;
    if (pMsg->message==WM_KEYUP)
    {
        if (pMsg->wParam==VK_HOME)
        {
            if (GameForm==NULL)
            {
                GameHwnd = pMsg->hwnd;
                GameForm=new CDLGWG();
                GameForm->Create(IDD_DIALOG_WG);
                GameForm->ShowWindow(TRUE);
            }
            else
                if (GameForm->IsWindowVisible())
                {
                    GameForm->ShowWindow(FALSE);
                }
                else
                {
                    GameForm->ShowWindow(TRUE);
                }
        }
    }
    return CallNextHookEx(0,nCode,wParam,lParam);
}
//安装钩子
void StartHook()
{
    AFX_MANAGE_STATE(AfxGetStaticModuleState());
    HWND hGame = FindWindow(_T("TianLongBaBu WndClass"),NULL);
    if (hGame==0)
    {
        MessageBox(NULL,_T("未找到游戏"),_T("提示"),NULL);
        return;
    }
    DWORD tid=GetWindowThreadProcessId(hGame,NULL);
    ::SetWindowsHookEx(WH_GETMESSAGE,GameProc,::GetModuleHandle(_T("GameDll.dll")),tid);
    
}
; GameDll.def : 声明 DLL 的模块参数。

LIBRARY

EXPORTS
    ; 此处可以是显式导出
    StartHook
//调用钩子处导出函数声明
#pragma comment(lib,"GameDll.lib")
_declspec(dllimport) void StartHook();

//退出时不保证游戏崩溃
在dll头文件中类的重写属性中添加退出事件

int CGameDllApp::ExitInstance()

{  

 if (GameHwnd!=0)

 {   

    delete GameForm;   

    GameForm= NULL;  

}

 return CWinApp::ExitInstance();

}