error C2065: 'AfxWinInit' : undeclared identifier
[code=C/C++][/code]
#include <afx.h>
#include <iostream>
using namespace std;

void Recurse(LPCTSTR pstr)
{
CFileFind finder;

// build a string with wildcards
CString strWildcard(pstr);
strWildcard += _T("//*.*");

// start working for files
BOOL bWorking = finder.FindFile(strWildcard);

while (bWorking)
{
bWorking = finder.FindNextFile();

// skip . and .. files; otherwise, we'd
// recur infinitely!

if (finder.IsDots())
continue;

// if it's a directory, recursively search it

if (finder.IsDirectory())
{
CString str = finder.GetFilePath();
cout << (LPCTSTR) str << endl;
Recurse(str);
}
}

finder.Close();
}

void _tmain()
{
if (!AfxWinInit(::GetModuleHandle(NULL), NULL,::GetCommandLine(), 0))
cout << "panic!" << endl;
else
Recurse(_T("C:"));
}

请问一下，为什么会出现error C2065: 'AfxWinInit' : undeclared identifier这种错误？

[解决办法]
摘自MSDN
// this file must be compiled with the /GX and /MT options:
// cl /GX /MT thisfile.cpp

#include <afx.h>
#include <afxdb.h>
#include <iostream.h>

int main()
{
// try to initialize MFC

if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
{
cerr << "MFC failed to initialize!" << endl;
return 1;
}

// try to connect to an ODBC database that doesn't exist
// (this wouldn't work at all without initializing MFC)

CDatabase db;
try
{
db.Open("This Databsae Doesn't Exist");

// we shouldn't realistically get here

cout << "Successful!" << endl;
cout << "Closing ... ";
db.Close();
cout << "Closed!" << endl;
}
catch (CDBException* pEx)
{
// we got an exception! print an error message
// (this wouldn't work without initializing MFC)

char sz[1024];

cout << "Error: ";
if (pEx->GetErrorMessage(sz, 1024))
cout << sz;
else
cout << "No error message was available";
cout << endl;

pEx->Delete();
return 1;
}

return 0;
}


[解决办法]

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