wchar to char转换

//将string转换成wstring<br/> wstring StringToWString(const string& str)<br/> {<br/> wstring result;<br/> //获取缓冲区大小，并申请空间，缓冲区大小按字符计算<br/> int len = ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.size(), NULL, 0);<br/> TCHAR* buffer = new TCHAR[len + 1];<br/> //多字节编码转换成宽字节编码<br/> ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.size(), buffer, len);<br/> buffer[len] = '/0'; //添加字符串结尾<br/> //删除缓冲区并返回值<br/> result.append(buffer);<br/> delete[] buffer;<br/> return result;<br/> }

//将wstring转换成string
string WstringToString(const wstring& wstr)
{
string result;
//获取缓冲区大小，并申请空间，缓冲区大小事按字节计算的
int len = ::WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), wstr.size(), NULL, 0, NULL, NULL);
char* buffer = new char[len + 1];
//宽字节编码转换成多字节编码
::WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), wstr.size(), buffer, len, NULL, NULL);
buffer[len] = '/0';
//删除缓冲区并返回值
result.append(buffer);
delete[] buffer;
return result;
}

#include <string><br/> #include <windows.h><br/> using namespace std;<br/> //Converting a WChar string to a Ansi string<br/> std::string WChar2Ansi(LPCWSTR pwszSrc)<br/> ...{<br/> int nLen = WideCharToMultiByte(CP_ACP, 0, pwszSrc, -1, NULL, 0, NULL, NULL);

if (nLen<= 0) return std::string("");

char* pszDst = new char[nLen];
if (NULL == pszDst) return std::string("");

WideCharToMultiByte(CP_ACP, 0, pwszSrc, -1, pszDst, nLen, NULL, NULL);
pszDst[nLen -1] = 0;

std::string strTemp(pszDst);
delete [] pszDst;

return strTemp;
}

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/ice197983/archive/2007/03/19/1533878.aspx

std::wstring Ansi2WChar(LPCSTR pszSrc, int nLen)

...{
int nSize = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pszSrc, nLen, 0, 0);
if(nSize <= 0) return NULL;

WCHAR *pwszDst = new WCHAR[nSize+1];
if( NULL == pwszDst) return NULL;

MultiByteToWideChar(CP_ACP, 0,(LPCSTR)pszSrc, nLen, pwszDst, nSize);
pwszDst[nSize] = 0;

if( pwszDst[0] == 0xFEFF) // skip Oxfeff
for(int i = 0; i < nSize; i ++)
pwszDst[i] = pwszDst[i+1];

wstring wcharString(pwszDst);
delete pwszDst;

return wcharString;
}

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/ice197983/archive/2007/03/19/1533878.aspx