Get Workstation information : Native Windows Function : Windows C# Examples

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Get Workstation information








    
/*
NET  Development  for  Java  Programmers
#  By  Paul  Gibbons
#  ISBN:  1-59059-038-4
#  432  pp.
#  Published:  Jul  2002
*/
using  System;
using  System.Runtime.InteropServices;
using  System.Text;

class  NWGetInfo
{
    [  StructLayout(  LayoutKind.Sequential  )  ]
    struct  WkstaInfo102
    {
        public  uint  platform_id;
        public  IntPtr  computername;
        public  IntPtr  langroup;
        public  uint  ver_major;
        public  uint  ver_minor;
        public  IntPtr  lanroot;
        public  uint  logged_on_users;
    }

    [  DllImport(  "Netapi32.dll"  )  ]
    static  extern  unsafe  int  NetWkstaGetInfo(  IntPtr  servername,  int  level,  byte**  bufptr  );

    [  DllImport(  "Netapi32.dll"  )  ]
    static  extern  unsafe  int  NetApiBufferFree(  byte*  bufptr  );

    [STAThread]
    static  unsafe  void  Main(string[]  args)
    {
        byte*  bp  =  null;
        int  rc  =  NetWkstaGetInfo(  IntPtr.Zero,  102,  &bp  );

        WkstaInfo102*  wip  =  (WkstaInfo102*)bp;
        Console.WriteLine(  "System  {0}  has  {1}  users  logged  on",  Marshal.PtrToStringAuto(  wip->computername  ),  wip->logged_on_users  );

        rc  =  NetApiBufferFree(  bp  );
    }
}