vc中GB2312，BIG5，Unicode相互转换

//GB2312 转换成 Unicode：

wchar_t* GB2312ToUnicode(const char* szGBString)

{

UINT nCodePage = 936; //GB2312

int nLength=MultiByteToWideChar(nCodePage,0,szGBString,-1,NULL,0);

wchar_t* pBuffer = new wchar_t[nLength+1];

MultiByteToWideChar(nCodePage,0,szGBString,-1,pBuffer,nLength);

pBuffer[nLength]=0;

return pBuffer;

}

//BIG5 转换成 Unicode：

wchar_t* BIG5ToUnicode(const char* szBIG5String)

{

UINT nCodePage = 950; //BIG5

int nLength=MultiByteToWideChar(nCodePage,0,szBIG5String,-1,NULL,0);

wchar_t* pBuffer = new wchar_t[nLength+1];

MultiByteToWideChar(nCodePage,0,szBIG5String,-1,pBuffer,nLength);

pBuffer[nLength]=0;

return pBuffer;

}

//Unicode 转换成 GB2312：

char* UnicodeToGB2312(const wchar_t* szUnicodeString)

{

UINT nCodePage = 936; //GB2312

int nLength=WideCharToMultiByte(nCodePage,0,szUnicodeString,-1,NULL,0,NULL,NULL);

char* pBuffer=new char[nLength+1];

WideCharToMultiByte(nCodePage,0,szUnicodeString,-1,pBuffer,nLength,NULL,NULL);

pBuffer[nLength]=0;

return pBuffer;

}

//Unicode 转换成 BIG5：

char* UnicodeToBIG5(const wchar_t* szUnicodeString)

{

UINT nCodePage = 950; //BIG5

int nLength=WideCharToMultiByte(nCodePage,0,szUnicodeString,-1,NULL,0,NULL,NULL);

char* pBuffer=new char[nLength+1];

WideCharToMultiByte(nCodePage,0,szUnicodeString,-1,pBuffer,nLength,NULL,NULL);

pBuffer[nLength]=0;

return pBuffer;

}

//繁体中文BIG5 转换成 简体中文 GB2312

char* BIG5ToGB2312(const char* szBIG5String)

{

LCID lcid = MAKELCID(MAKELANGID(LANG_CHINESE,SUBLANG_CHINESE_SIMPLIFIED),SORT_CHINESE_PRC);

wchar_t* szUnicodeBuff = BIG5ToUnicode(szBIG5String);

char* szGB2312Buff = UnicodeToGB2312(szUnicodeBuff);

int nLength = LCMapString(lcid,LCMAP_SIMPLIFIED_CHINESE, szGB2312Buff,-1,NULL,0);

char* pBuffer = new char[nLength + 1];

LCMapString(0x0804,LCMAP_SIMPLIFIED_CHINESE,szGB2312Buff,-1,pBuffer,nLength);

pBuffer[nLength] = 0;

delete[] szUnicodeBuff;

delete[] szGB2312Buff;

return pBuffer;

}

//简体中文 GB2312 转换成 繁体中文BIG5

char* GB2312ToBIG5(const char* szGBString)

{

LCID lcid = MAKELCID(MAKELANGID(LANG_CHINESE,SUBLANG_CHINESE_SIMPLIFIED),SORT_CHINESE_PRC);

int nLength = LCMapString(lcid,LCMAP_TRADITIONAL_CHINESE,szGBString,-1,NULL,0);

char* pBuffer=new char[nLength+1];

LCMapString(lcid,LCMAP_TRADITIONAL_CHINESE,szGBString,-1,pBuffer,nLength);

pBuffer[nLength]=0;

wchar_t* pUnicodeBuff = GB2312ToUnicode(pBuffer);

char* pBIG5Buff = UnicodeToBIG5(pUnicodeBuff);

delete[] pBuffer;

delete[] pUnicodeBuff;

return pBIG5Buff;

}