IntPtr.Zero : IntPtr « unsafe « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. unsafe
3. IntPtr

using System;
using System.Runtime.InteropServices;

public class MainClass
{
  [STAThread]
  static void Main(string[] args)
  {
    IntPtr ptr = IntPtr.Zero;

    ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(int)));
    Marshal.FreeHGlobal(ptr);
  }
}