Find Windows Username

Sometimes we might need to find the Windows Username during program execution. I personally needed this for saving files to the desktop. In Windows 7, the path to the desktop is C:\users\SystemSpecificUsername\desktop.
You might need it for a myriad of other reasons. I found this in a forum where I think someone was looking for a solution to this, he found it himself then posted it for all to see (Here is the original thread). Anyway, hope you find a use for it.

This function accepts a char sent to it and writes the current username into it.

This program will print the username of the current user on a Windows system.

#include <stdio.h>
#include <windows.h>

void username(char *u);
#define INFO_BUFFER_SIZE 32767

void main()
{
    char name[20];

    username(name);
    printf("%s",name);
}

void username(char *u) //this function rewrites a char with the username of the windows user.
{
    char *c;
  TCHAR  infoBuf[INFO_BUFFER_SIZE];
  DWORD  bufCharCount = INFO_BUFFER_SIZE;

  bufCharCount = INFO_BUFFER_SIZE;
  GetUserName(infoBuf,&bufCharCount);
      c=&infoBuf[0];
      while(*c!='\0')
        {
            *u=*c;
            u++;
            c++;
        }
        *u='\0';
}