Console Chat Client

////////////////////////////////////////////////////
// Simple Chat Client, as basic as it gets
// thx dxtuts
////////////////////////////////////////////////////
#define _WINSOCKAPI_    // Don't include Winsock.h
#include <winsock2.h>    // WinSock header file
#include <stdio.h>    // Input/Output header file for gets() function

#pragma comment(lib, "Ws2_32.lib")    // WinSock Library

#define SERVER_ADDRESS "192.168.1.100" // ip where server is, yours will differ
#define SERVER_PORT 17000

DWORD WINAPI RecvThread(LPVOID Whatever);    // The RecvThread() prototype

WSADATA Winsock;    // Stores information about Winsock
SOCKET Socket;    // The ID of the socket
sockaddr_in ServerAddress;    // The address to send data to
char SendBuffer[256];    // The buffer of data to send
char RecvBuffer[256];    // The buffer of data to receive
int SizeInt = sizeof(ServerAddress);    // The size of the server's address

void main()
{
    WSAStartup(MAKEWORD(2, 2), &Winsock);

    if(LOBYTE(Winsock.wVersion) != 2 || HIBYTE(Winsock.wVersion) != 2)    // Check version
    {
        WSACleanup();
        return;
    }

    // Make the Socket
    Socket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);

    // Input Server Information
    ZeroMemory(&ServerAddress, sizeof(ServerAddress));    // clear the struct
    ServerAddress.sin_family = AF_INET;    // set the address family
    ServerAddress.sin_addr.s_addr = inet_addr(SERVER_ADDRESS);    // set the IP address
    ServerAddress.sin_port = SERVER_PORT;    // set the port

    // Send a knock to the server
    SendBuffer[0] = 1;
    sendto(Socket, SendBuffer, 1, 0, (sockaddr*)&ServerAddress, sizeof(sockaddr));

    // Start the receiver thread
    CreateThread(NULL, 0, RecvThread, NULL, 0, NULL);

    // Send the Messages
    while(true)
    {
        gets(SendBuffer);
        sendto(Socket, SendBuffer, 256, 0, (sockaddr*)&ServerAddress, sizeof(sockaddr));

        if(SendBuffer[0] == ' ')
            break;
    };

    WSACleanup();

    return;
}

DWORD WINAPI RecvThread(LPVOID Whatever)
{
    while(true)
    {
        // Wait for messages to arrive
        recvfrom(Socket, RecvBuffer, 256, 0, (sockaddr*)&ServerAddress, &SizeInt);

        // Print them to the screen
        printf("Received: ");    // print a pretty "Received: " label
        printf(RecvBuffer);    // print the data itself
        printf("\n");    // jump to a new line

        // If the user quits, this thread has to exit too, or the program won't end
        if(SendBuffer[0] == ' ')
            break;
    }

    return 0;
}