Managed C++/CLI

#pragma once
#undef UNICODE
#define WIN32_LEAN_AND_MEAN

#pragma comment (lib, "Ws2_32.lib")
#include "stdafx.h"
#include <Winsock2.h>
#include <Ws2tcpip.h>
#include "vcclr.h"
#include<string>
#include<iostream>
#include <windows.h>
#include <process.h>
#include <stdio.h>
#include <sstream>
#include <stdlib.h>

namespace trial {

	using namespace std;
	using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;
	using namespace System::Threading;
	using namespace System::Runtime::InteropServices;

	public ref class Form1  : public System::Windows::Forms::Form
	{
	public:
		Form1(void)
		{
			InitializeComponent();
		}
	public:
		~Form1()
		{
			if (components)
			{
				delete components;
			}
		}

	public: System::Windows::Forms::Button^  baslat_button;
	public: 

	private:
		/// <summary>
		/// Required designer variable.
		/// </summary>
		System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.

		/// </summary>

		void InitializeComponent(void)
		{
			//definitons of buttons textboxes etc.

		}

#pragma endregion

public: void start1(void* pParams )
{
	// Doing something
}


	private: System::Void Form1_Load(System::Object^  sender, System::EventArgs^  e) 
			 {
				 
				 			 
			 }
			 

	private: System::Void baslat_button_Click(System::Object^  sender, System::EventArgs^  e) 
	{
		     hEvent1 = CreateEvent( NULL, FALSE, TRUE, NULL );
			 hEvent2 = CreateEvent( NULL, FALSE, FALSE, NULL );


			_beginthread(start1, 0, NULL );
						
	}

};
}

Error   1   error C3867: 'trial::Form1::start1': function call missing argument list; use '&trial::Form1::start1' to create a pointer to member c:\users\ali\desktop\yedek\trial\trial\Form1.h  509 1   server_screen

Point pntA = new Point(10, 25);
Point pntB = new Point();

unsafe
{
  // Error	4	
  // You cannot use the fixed statement to take 
  // the address of an already fixed expression	
  fixed (Point* ptrA = &pntA, ptrB = &pntB)
  {
    ptrB->X = ptrA->X;
    ptrB->Y = ptrA->Y;
  }
}

Point pntA = new Point(10, 25);
Point pntB = new Point();

unsafe
{
  // Correct
  Point* ptrA = &pntA, ptrB = &pntB;
  ptrB->X = ptrA->X;
  ptrB->Y = ptrA->Y;
}

// /clr
generic <typename T> where T : value struct
T GetValueA(void* ptr)
{
  T val = Activator::CreateInstance<T>();

  pin_ptr<T> valPtr = &val;
  memcpy(valPtr, ptr, sizeof(T));
  return val;
}

generic <typename T> where T : value struct
T GetValueB(void* ptr)
{
  T val = Activator::CreateInstance<T>();

  memcpy(&val, ptr, sizeof(T));
  return val;
}