任意文件读取转换UNICODE问题

[clhposs]

void MyFile::JudgeFile(LPCWSTR lpFileName, LPWSTR lpType)
{
	FILE *fp;

	if ((fp = _wfopen(lpFileName, L"r")) == NULL)
	{
		return;
	}
	BYTE btHead[3];
	
	// 读取文件前3个字节
	size_t uRead = fread(btHead, 1, 3, fp);

	if (uRead == 3 && btHead[0] == 0xEF && btHead[1] == 0xBB && btHead[2] == 0xBF)
	{
		swprintf(lpType, L"r, ccs=UTF-8");
		return;
	}
	if (uRead >= 2 && ((btHead[0] == 0xFE && btHead[1] == 0xFF) || (btHead[0] == 0xFF && btHead[1] == 0xFE)))
	{
		swprintf(lpType, L"r, ccs=UNICODE");
		return;
	}
	swprintf(lpType, L"r");
}

bool MyFile::OpenFile(LPCWSTR lpFileName)
{
	FILE *fp;
	wchar_t szType[32];
	JudgeFile(lpFileName, szType);

	if ((fp = _wfopen(lpFileName, szType)) == NULL)
	{
		return false;
	}

	wchar_t szLine[MAX_LINE];

	while(fgetws(szLine, MAX_LINE, fp))
	{
		m_file_text += szLine;
		m_file_text += L'\n';
		std::wcout << szLine << std::endl;
	}
	if (wcslen(szType) == 2)
	{
		// 怎样转换????????? 
	}
	else
	{
		m_lpText = m_file_text.c_str();
	}
	return true;
}

[clhposs]

if (wcslen(szType) == 1) 发错了！
{
// 怎样转换?????????
}

[cranium]

mbtowc 或者 wctomb 试试。