VS GBK encoding and UTF-8 encoding conversion

#include <Windows.h>

Note: multibyte includes GBK and UTF-8

int Gbk2utf8 (char *szgbk,char *szutf8,int Len)

{

Converts multibyte GBK (CP_ACP or ANSI) to wide characters first UTF-16

The number of memory characters required after the conversion is obtained

int n = MultiByteToWideChar (cp_acp,0,szgbk,-1,null,0);

Number of characters multiplied by sizeof (WCHAR) to get the number of bytes

WCHAR *str1 = new Wchar[sizeof (WCHAR) * n];

Transformation

MultiByteToWideChar (CP_ACP,//multibyte code page

0,//additional signs, related to phonetic transcription

SZGBK,//input GBK string

-1,//input string length, 1 means internal calculation by function

STR1,//output

N//output required memory allocated

);

Convert wide character (UTF-16) to multibyte (UTF-8)

n = WideCharToMultiByte (Cp_utf8, 0, STR1,-1, NULL, 0, NULL, NULL);

if (n > Len)

{

DELETE[]STR1;

return-1;

}

WideCharToMultiByte (Cp_utf8, 0, STR1,-1, SzUtf8, n, null, NULL);

DELETE[]STR1;

STR1 = NULL;

return 0;

}

UTF-8 GBK

int UTF82GBK (char *szutf8,char *szgbk,int Len)

{

int n = MultiByteToWideChar (Cp_utf8, 0, SzUtf8,-1, NULL, 0);

WCHAR * WSZGBK = new Wchar[sizeof (WCHAR) * n];

memset (WSZGBK, 0, sizeof (WCHAR) * n);

MultiByteToWideChar (Cp_utf8, 0,szutf8,-1, WSZGBK, N);

n = WideCharToMultiByte (CP_ACP, 0, WSZGBK,-1, NULL, 0, NULL, NULL);

if (n > Len)

{

DELETE[]WSZGBK;

return-1;

}

WideCharToMultiByte (cp_acp,0, WSZGBK,-1, SZGBK, n, null, NULL);

DELETE[]WSZGBK;

WSZGBK = NULL;

return 0;

}

VS GBK encoding and UTF-8 encoding conversion