進(jìn)入 Project-->Setting--> C/C++ Page,做以下修改: 1. 在Preprocessor definitions中加入_AFXDLL,加入后的設(shè)置大概是這樣的: WIN32,_DEBUG / NODEBUG,[_CONSOLE],[_MBCS],_AFXDLL 加入的_AFXDLL是關(guān)鍵 ,它欺騙MFC LIB,避免連接 MFC 的 WinMain 函數(shù)。 2. 修改Project Options,將 /MT或者 /ML標(biāo)志改為 /MD。 原因是在 afxver_.h 中會(huì)檢查_(kāi)AFXDL, _MT, _DLL 標(biāo)志是否同時(shí)設(shè)置,否則報(bào)錯(cuò)。盡管鏈接 For Multi-Threaded 版本的 Library 會(huì)損失一些性能,但是這個(gè)標(biāo)志的存在并不導(dǎo)致編譯器把 Project 編譯成 DLL。 3. 在Project的 stdafx.h 中包含必要的頭文件,或者直接從MFC AppWizard創(chuàng)建的stdafx.h中拷貝: #define VC_EXTRALEAN // Exclude rarely-used stuff from Windows headers
#include <afx.h> #include <afxwin.h> // MFC core and standard components #include <afxext.h> // MFC extensions #include <afxdtctl.h> // MFC support for Internet Explorer 4 Common Controls #ifndef _AFX_NO_AFXCMN_SUPPORT #include <afxcmn.h> // MFC support for Windows Common Controls #endif // _AFX_NO_AFXCMN_SUPPORT 4. 在Project的WinMain / main中加入MFC的初始化代碼,以下是_tWinMain和_tmain的情況: extern "C" int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { int nRetCode = 0; if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0)) { TRACE0("Fatal Error: MFC initialization failed.\n"); nRetCode = 1; } else { // Actual WinMain codes ... AfxWinTerm(); } return nRetCode; } int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]) { int nRetCode = 0; if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0)) { cerr << _T("Fatal Error: MFC initialization failed") << endl; nRetCode = 1; } else { // Actual main codes ... AfxWinTerm(); } return nRetCode; } 此外,在Virtual C++ 6.0創(chuàng)建的Win32 Dynamic-Link Library中也可以單獨(dú)使用MFC,這樣可以避免Project被MFC AppWizard和ATL COM AppWizard添加CWinApp實(shí)例,方法簡(jiǎn)單,如下構(gòu)造Project的DllMain函數(shù)即可: #include <afxdllx.h> static AFX_EXTENSION_MODULE ProjectDLL = { NULL, NULL }; extern "C" int APIENTRY DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved) { // Remove this if you use lpReserved. UNREFERENCED_PARAMETER(lpReserved); if (dwReason == DLL_PROCESS_ATTACH) { // Extension DLL one-time initialization. if (!AfxInitExtensionModule(ProjectDLL, hInstance)) { TRACE0("Project.DLL initialize its extension module failed!\n"); return FALSE; }
// CDynLinkLibrary’s destructor will be called in AfxTermExtensionModule. new CDynLinkLibrary(ProjectDLL); } elseif (dwReason == DLL_PROCESS_DETACH) { TRACE0("Project.DLL terminating...\n"); // Terminate the library before destructors are called. AfxTermExtensionModule(ProjectDLL); } return TRUE; // ok. } |
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來(lái)自: 3D建模仿真 > 《學(xué)習(xí)筆記》