Serialize a class before sending with socket

[zvivered]

I tried the following code to convert a struct to array of bytes:

struct PcToTgtIsAlive
    {
        int a;
        int b;
        int c;
        public void Init()
        {
            a = 1;
            b = 2;
            c = 3;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            PcToTgtIsAlive p = new PcToTgtIsAlive();
            p.Init();
            int rc=Marshal.SizeOf (p);
            IntPtr pnt = Marshal.AllocHGlobal(Marshal.SizeOf(p));
            Marshal.StructureToPtr(p, pnt, false);
            byte []dest=new byte[12];
            Marshal.Copy(pnt, dest, 0, Marshal.SizeOf(p));
         }
    }

It works. Is there a problem using this code ?

Thanks.