How do I convert a LPVOID (void*) to string?

[Kagamin]

> string GetLastErrorMessage() {
>
>	wchar* lpMsgBuf;
>	DWORD errorMessageID = GetLastError();
>
>	uint len=FormatMessageW(
>		FORMAT_MESSAGE_ALLOCATE_BUFFER |
>		FORMAT_MESSAGE_FROM_SYSTEM |
>		FORMAT_MESSAGE_IGNORE_INSERTS,
>		NULL,
>		errorMessageID,
>		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
>		cast(LPWSTR) &lpMsgBuf,
>		0, NULL);
>
>	string msg=lpMsgBuf[0..len].to!string;
>	LocalFree(lpMsgBuf);
>
>	return msg;
>}