APIs for getting username

[ayousuf]

hi,

I'm trying to get the name of the user currently logged into windows inside a service using visual studio C++ 2005. I need to use API to get the username. Does anyone know which API to use and how to use it?

thanks!

[drkybelk]

Hi,

try

GetUserName
The GetUserName function retrieves the user name of the current thread. This is the name of the user currently logged onto the system. 

BOOL GetUserName(
  LPTSTR lpBuffer,  // address of name buffer
  LPDWORD nSize     // address of size of name buffer
);

It's SDK stuff, look on the MSDN for GetUserName

use it like this:

char buffer[100] = {0 };
int sz = 99;
BOOL result = GetUserName(buffer,&sz);
// error check
if(result = FALSE)
{
  // do some error handling here
}
else
{
   // here the user name is in buffer
   cout << buffer << endl

}

Cheers,

D