ansi-unicode-utf8

wchar_t* AnsiToUnicode(const char* str)
{
	int textlen;
	wchar_t *result;

	textlen = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0); 
	result = (wchar_t *)malloc((textlen + 1) * sizeof(wchar_t)); 
	memset(result, 0,(textlen + 1) * sizeof(wchar_t)); 
	MultiByteToWideChar(CP_ACP, 0, str, -1, result, textlen); 
	return result; 
}

char* UnicodeToUTF8(const wchar_t* str)
{
	char *result;
	int  textlen;

	textlen = WideCharToMultiByte(CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
	result =(char *)malloc((textlen + 1) * sizeof(char));
	memset(result, 0, sizeof(char) * (textlen + 1));
	WideCharToMultiByte(CP_UTF8, 0, str, -1, result, textlen, NULL, NULL);
	return result;
}

char *AnsiToUTF8(const char* str)
{
	wchar_t *lpUnicode = ANSIToUnicode(str);
	char *lpUtf8 = UnicodeToUTF8(lpUnicode);

	free(lpUnicode);
	return lpUtf8;
}