以下四个函数分别实现：
大五码转GBK码/GBK转大五码
GB2312码转GBK码/GBK码转GB2312码
于是有人要问了，为什么没有GB2312转BIG5和BIG5转GB2312呢，我们有GBK，能够做一下中转啊。能够将GB2312转成GBK，再将GBK转成BIG5，反之亦然。假如您嫌麻烦，能够自己写一个GB2BIG5/BIG52GB。
//---------------------------------------------------------------------------
// 大五码转GBK码：
// い地チ㎝瓣 --> 中華人民共和國
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转大五码
// 中華人民共和國 --> い地チ㎝瓣
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
// 中华人民共和国 --> 中華人民共和國
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
// 中華人民共和國 --> 中华人民共和国
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，通过GBK中转
strcpy(szBuf, Edit1->Text.c_str());
GB2GBK(szBuf);
GBK2BIG5(szBuf);
Edit3->Text = String(szBuf);
