How to output TCHAR to a file?

Question

C++ / C#

There is a local computer name obtained in this section of code:

string LOCALHOST;
TCHAR HOSTNAME[UNLEN+1];
DWORD HOSTNAME_LEN = UNLEN+1;

LOCALHOST = GetComputerName((TCHAR*)HOSTNAME,&HOSTNAME_LEN);

Another piece of code with the output of the LOCALHOST variable to a file:

string log_path = "log.txt";
  ofstream log;
  log.open(log_path, ofstream::app);
  log << "Имя узла:" << endl;
  log << LOCALHOST << endl;
  log.close();

The log.txt file has the following output:


What is the correct way to display the computer name in the file?

Answer 1

What does the GetComputerName function return ? (how did this code even compile, I wonder?)