MFC中获取命令行参数的几种方法

参考了http://www.qingfengju.com/article.asp?id=92、http://www.cnblogs.com/oskycar/articles/1313355.html

和http://www.codeguru.com/forum/showthread.php?t=386406

 

不妨设应用程序名为CmdTest，在命令行输入CmdTest Hello World

 

方法一:

CString str = ::GetCommandLine();ASSERT(0 == str.Compare("CmdTest Hello World"));

方法二:

ASSERT(3 == __argc);ASSERT(0 == strcmp(__argv[0],"CmdTest"));ASSERT(0 == strcmp(__argv[1],"Hello"));ASSERT(0 == strcmp(__argv[2],"World"));

方法三:

ASSERT(0 == strcmp("Hello World",AfxGetApp()->m_lpCmdLine));

方法四:

使用MFC中的CCommandLineInfo类。

首先，将下面的代码注释，主要是不要生成对话框。

CCmdTestDlg dlg;m_pMainWnd = &dlg;int nResponse = dlg.DoModal();if (nResponse == IDOK){ // TODO: Place code here to handle when the dialog is // dismissed with OK}else if (nResponse == IDCANCEL){ // TODO: Place code here to handle when the dialog is // dismissed with OK}

创建CCommandLineInfo的派生类

//MyCmdLineInfo.hclass CMyCmdLineInfo : public CCommandLineInfo {public:CMyCmdLineInfo();virtual ~CMyCmdLineInfo();virtual void ParseParam(const char* pszParam, BOOL bFlag, BOOL bLast);CStringArray m_arCommd;};//MyCmdLineInfo.cppCMyCmdLineInfo::CMyCmdLineInfo(){m_arCommd.RemoveAll();}CMyCmdLineInfo::~CMyCmdLineInfo(){}void CMyCmdLineInfo::ParseParam(const char* pszParam, BOOL bFlag, BOOL bLast){CString str = pszParam;m_arCommd.Add(str);}

在CCmdTestApp::InitInstance最后，return FALSE之前加上，注意要#include对应头文件

CMyCmdLineInfo cmdInfo; cmdInfo.m_nShellCommand = CCommandLineInfo::FileNothing; ParseCommandLine(cmdInfo);ASSERT(2 == cmdInfo.m_arCommd.GetSize());ASSERT(0 == cmdInfo.m_arCommd[0].Compare("Hello"));ASSERT(0 == cmdInfo.m_arCommd[1].Compare("World"));

方法五:

使用控制台应用程序(Win32 console application)，并在接下来的对话框中选择“An application that supports MFC”

单击Finnish按钮，会自动生成_tmain函数

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]){int nRetCode = 0;// initialize MFC and print and error on failureif (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0)){// TODO: change error code to suit your needscerr << _T("Fatal Error: MFC initialization failed") << endl;nRetCode = 1;}else{// TODO: code your application's behavior here.//将下面代码注释掉换成自己的代码即可CString strHello;strHello.LoadString(IDS_HELLO);cout << (LPCTSTR)strHello << endl; }return nRetCode;}