LPCWSTR与string相互转换

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string char*转LPCWSTR

LPCWSTR stringToLPCWSTR(std::string orig)
{
	size_t origsize = orig.length() + 1;
	const size_t newsize = 100;
	size_t convertedChars = 0;
	wchar_t *wcstring = (wchar_t *)malloc(sizeof(wchar_t)*(orig.length() - 1));
	mbstowcs_s(&convertedChars, wcstring, origsize, orig.c_str(), _TRUNCATE);

	return wcstring;
}

LPCWSTR转string

string WCharToMByte(LPCWSTR lpcwszStr)
{
	string str;
	DWORD dwMinSize = 0;
	LPSTR lpszStr = NULL;
	dwMinSize = WideCharToMultiByte(CP_OEMCP, NULL, lpcwszStr, -1, NULL, 0, NULL, FALSE);
	if (0 == dwMinSize)
	{
		return FALSE;
	}
	lpszStr = new char[dwMinSize];
	WideCharToMultiByte(CP_OEMCP, NULL, lpcwszStr, -1, lpszStr, dwMinSize, NULL, FALSE);
	str = lpszStr;
	delete[] lpszStr;
	return str;
}