delegate is a function pointer : Delegate : Delegate C# Examples

    
using  System;

class  MainClass
{
    delegate  int  MyDelegate(string  s);
    static  void  Main(string[]  args)
    {
        MyDelegate  Del1  =  new  MyDelegate(DoSomething);
        MyDelegate  Del2  =  new  MyDelegate(DoSomething2);

        string  MyString  =  "Hello  World";

        Del1(MyString);
        Del2(MyString);

    }

    static  int  DoSomething(string  s)
    {
        Console.WriteLine("DoSomething");
        
        return  0;
    }
    static  int  DoSomething2(string  s)
    {
            Console.WriteLine("DoSomething2");
        return  0;
    }
}
    
   
  
   






    
using  System;

public  class  Machine
{
        string  name;
        public  Machine(string  name)
        {
                this.name  =  name;
        }        
        public  void  Process(string  message)
        {
                Console.WriteLine("{0}:  {1}",  name,  message);
        }
}

class  Test
{
        delegate  void  ProcessHandler(string  message);
        
        static  public  void  Process(string  message)
        {
                Console.WriteLine("Test.Process(\"{0}\")",  message);
        }
        public  static  void  Main()
        {
                Machine  computer  =  new  Machine("Computer");
                
                ProcessHandler  ph  =  new  ProcessHandler(computer.Process);
                ph  =  (ProcessHandler)  Delegate.Combine(ph,  new  ProcessHandler(Process));
                
                ph("compile");                
        }
}
    
   
  
   

Computer: compile
Test.Process("compile")