C#

using System;
using System.Runtime.InteropServices;
 
class Test
{
  const int MAX_PATH = 260;
 
  static void Main(string[] args)
  {
    if (args.Length != 1) Environment.Exit(-1);
    string path = new string('\0', MAX_PATH);
    QueryDosDevice(args[0], path, MAX_PATH);
 
    Console.WriteLine("Mount point: " + path);
  }
 
  [DllImport("kernel32.dll", CharSet=CharSet.Auto, SetLastError=true)]
  static extern int QueryDosDevice(string name, string path, int max);
}

class MyObject : IDisposable
{
  ~MyObject()
  {
    Dispose(false);
  }
  void IDisposable.Dispose()
  {
    Dispose(true);
  }
  protected virtual void Dispose(bool disposing)
  {
    if (disposing)
    {
      // Release managed resources.
    }
    // Release unmanaged resources.
  }
}

using (FileStream file = File.Open("file.txt", FileMode.Open))
{
  // Do something with 'file'.
}

FileStream file = File.Open("file.txt", FileMode.Open));
try
{
  // Do something with 'file'.
}
finally
{
  if (file != null) ((IDisposable)file).Dispose(0;
}