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C语言实现GBK/GB2312/五大码之间的转换

以下四个函数分手实现:

大年夜五码转GBK码/GBK转大年夜五码

GB2312码转GBK码/GBK码转GB2312码

//---------------------------------------------------------------------------

// 大年夜五码转GBK码:

void __fastcall BIG52GBK(char *szBuf)

{

if(!strcmp(szBuf, ""))

return;

int nStrLen = strlen(szBuf);

wchar_t *pws = new wchar_t[nStrLen + 1];

try

{

int nReturn = MultiByteToWideChar(950, 0, szBuf, nStrLen, pws, nStrLen + 1);

BOOL bValue = false;

nReturn = WideCharToMultiByte(936, 0, pws, nReturn, szBuf, nStrLen + 1, "?", &bValue);

szBuf[nReturn] = 0;

}

__finally

{

delete[] pws;

}

}

//---------------------------------------------------------------------------

// GBK转大年夜五码

void __fastcall GBK2BIG5(char *szBuf)

{

if(!strcmp(szBuf, ""))

return ;

int nStrLen = strlen(szBuf);

wchar_t *pws = new wchar_t[nStrLen + 1];

try

{

MultiByteToWideChar(936, 0, szBuf, nStrLen, pws, nStrLen + 1);

BOOL bValue = false;

WideCharToMultiByte(950, 0, pws, nStrLen, szBuf, nStrLen + 1, "?", &bValue);

szBuf[nStrLen] = 0;

}

__finally

{

delete[] pws;

}

}

//----------------------------------------------------------------------------

// GB2312码转GBK码

void __fastcall GB2GBK(char *szBuf)

{

if(!strcmp(szBuf, ""))

return;

int nStrLen = strlen(szBuf);

WORD wLCID = MAKELCID(MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED), SORT_CHINESE_PRC);

int nReturn = LCMapString(wLCID, LCMAP_TRADITIONAL_CHINESE, szBuf, nStrLen, NULL, 0);

if(!nReturn)

return;

char *pcBuf = new char[nReturn + 1];

try

{

wLCID = MAKELCID(MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED), SORT_CHINESE_PRC);

LCMapString(wLCID, LCMAP_TRADITIONAL_CHINESE, szBuf, nReturn, pcBuf, nReturn + 1);

strncpy(szBuf, pcBuf, nReturn);

}

__finally

{

delete[] pcBuf;

}

}

//---------------------------------------------------------------------------

// GBK码转GB2312码

void __fastcall GBK2GB(char *szBuf)

{

if(!strcmp(szBuf, ""))

return;

int nStrLen = strlen(szBuf);

WORD wLCID = MAKELCID(MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED), SORT_CHINESE_BIG5);

int nReturn = LCMapString(wLCID, LCMAP_SIMPLIFIED_CHINESE, szBuf, nStrLen, NULL, 0);

if(!nReturn)

return;

char *pcBuf = new char[nReturn + 1];

try

{

wLCID = MAKELCID(MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED), SORT_CHINESE_BIG5);

LCMapString(wLCID, LCMAP_SIMPLIFIED_CHINESE, szBuf, nReturn, pcBuf, nReturn + 1);

strncpy(szBuf, pcBuf, nReturn);

}

__finally

{

delete []pcBuf;

}

}

//---------------------------------------------------------------------------

// 测试代码

void __fastcall TForm1::Button1Click(TObject *Sender)

{

char szBuf[255];

// 从GB2312转到GBK

strcpy(szBuf, Edit1->Text.c_str());

GB2GBK(szBuf);

Edit2->Text = String(szBuf);

// 从GB2312转到BIG5,经由过程GBK中转

strcpy(szBuf, Edit1->Text.c_str());

GB2GBK(szBuf);

GBK2BIG5(szBuf);

Edit3->Text = String(szBuf);

}

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