using System;

using System.Runtime.InteropServices;

public class Program

{

    public static void Main()

    {

        MYSTRUCT1 s = new MYSTRUCT1();

        s.a = 1; s.b = 2; s.c = 3;

        Console.WriteLine("{0} {1} {2}",s.a,s.b,s.c);

​

            byte[] buffer = StructToByteArray(s);

        MYSTRUCT1 ss = new MYSTRUCT1();

        ByteArrayToAnyStruct(ref ss, buffer); 

        Console.WriteLine("{0} {1} {2}",ss.a,ss.b,ss.c);

    }

     struct MYSTRUCT1 { public int a; public int b; public int c; }

    struct MYSTRUCT2 { public int a; public string b; }

​

    static byte[] StructToByteArray(object s)

    {

        byte[] data = new byte[Marshal.SizeOf(s)];

        IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf(s));

        Marshal.StructureToPtr(s, ptr, true);

        Marshal.Copy(ptr, data, 0, data.Length);

        Marshal.FreeHGlobal(ptr);

        return data;

    }

    static void ByteArrayToAnyStruct<T>(ref T s, byte[] buffer) where T : struct

    {

        IntPtr ptr = Marshal.AllocHGlobal(buffer.Length);

        Marshal.Copy(buffer, 0, ptr, buffer.Length);

        s = (T)Marshal.PtrToStructure(ptr, s.GetType()); //<---- what's wrong with this structure?

        Marshal.FreeHGlobal(ptr);

    }

}