need help with my compiler issue

[evy]

Write your question here.

  enum Suit { clubs, diamonds, hearts, spades };
const int jack = 11; //from 2 to 10 are
const int queen = 12; //integers without names
const int king = 13;
const int ace = 14;
using namespace std;
#include <iostream>
////////////////////////////////////////////////////////////////
class card
{
private:
	int number; //2 to 10, jack, queen, king, ace
	Suit suit; //clubs, diamonds, hearts, spades
public:
	card() //constructor (no args)
	{ }
	//constructor (two args)
	card(int n, Suit s) : number(n), suit(s)
	{ }
	void display(); //display card
	bool isEqual(card); //same as another card?
};
//--------------------------------------------------------------
void card::display() //display the card
{
	if (number >= 2 && number <= 10)
		cout << number << "of ";
	else
		switch (number)
	{
		case jack: cout << "jack of "; break;
		case queen: cout << "queen of "; break;
		case king: cout << "king of "; break;
		case ace: cout << "ace of "; break;
	}
	switch (suit)
	{
	case clubs: cout << "clubs"; break;
	case diamonds: cout << "diamonds"; break;
	case hearts: cout <<"hearts"; break;
	case spades: cout << "spades"; break;
	}
}
//--------------------------------------------------------------
bool card::isEqual(card c2) //return true if cards equal
{
	return (number == c2.number && suit == c2.suit) ? true : false;
}

#include "card.h"
#include<iostream>
using namespace std;


int main()
{
	card temp, chosen, prize; //define various cards
	int position;
	card card1(7, clubs); //define & initialize card1
	cout << "\nCard 1 is the ";
	card1.display(); //display card1
	card card2(jack, hearts); //define & initialize card2
	cout << "\nCard 2 is the ";
	card2.display(); //display card2
	card card3(ace, spades); //define & initialize card3
	cout << "\nCard 3 is the ";
	card3.display(); //display card3
	prize = card3; //prize is the card to guess
	cout << "\nI’m swapping card 1 and card 3";
	temp = card3; card3 = card1; card1 = temp;
	cout << "\nI’m swapping card 2 and card 3";
	temp = card3; card3 = card2; card2 = temp;
	cout << "\nI’m swapping card 1 and card 2";
	temp = card2; card2 = card1; card1 = temp;
	cout << "\nNow, where(1, 2, or 3) is the ";
	prize.display(); //display prize card
	cout << " ? ";
	cin >> position; //get user’s guess of position
	switch (position)
	{ //set chosen to user’s choice
	case 1: chosen = card1; break;
	case 2: chosen = card2; break;
	case 3: chosen = card3; break;
	}
	if (chosen.isEqual(prize)) //is chosen card the prize?
		cout << "That’s right!You win!";
	else
		cout << "Sorry.You lose.";
	cout << " You chose the ";
	chosen.display(); //display chosen card
	cout << endl;
	return 0;
}

its the header in the main
some project i copy paste from internet to understand why always my compiler says unreslved externals.-problem 1
and Error 1 error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup C:\Users\***\Documents\Visual Studio 2013\Projects\EX2\cards\MSVCRTD.lib(crtexew.obj) cards

how can i fix it please.

[Moschops]

You picked the wrong kind of Visual Studio project when you created a new project. Make a new one, and make sure it's a plain, ordinary console project. Not a windows project.

[evy]

tnx alot ! finnaly discover this issue