window平臺下gtk+socket簡單學習。

1.使用dev-c++作爲IDE時，需在”編譯器項“中的“添加命令行編輯框“中添加socket的lib庫-lwsock32
2.使用glade 添加一個按鈕，並添加clicked的信號會自動生成此信號的回調函數
3.在此回調函數實現創建socket/綁定端口/監聽套接字，發現有客戶端連接就彈出一個對話框提示，然後關閉連接；具體代碼如下：
 

#include <winsock2.h>
void
on_button1_clicked                     (GtkButton       *button,
                                        gpointer         user_data)
{
  //----------------------
  // Initialize Winsock.
  WSADATA wsaData;
  SOCKET ListenSocket,AcceptSocket;
  int iResult;
  struct sockaddr_in service;
  

  iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
  if (iResult != NO_ERROR) {
    printf("Error at WSAStartup()\n");
    return ;
  }
 
  //----------------------
  // Create a SOCKET for listening for
  // incoming connection requests.
  
  ListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (ListenSocket == INVALID_SOCKET) {
    printf("Error at socket(): %ld\n", WSAGetLastError());
    WSACleanup();
    return ;
  }
 
  //----------------------
  // The sockaddr_in structure specifies the address family,
  // IP address, and port for the socket that is being bound.
  
  service.sin_family = AF_INET;
  service.sin_addr.s_addr = inet_addr("127.0.0.1");
  service.sin_port = htons(27015);

  if (bind( ListenSocket, 
    (SOCKADDR*) &service, 
    sizeof(service)) == SOCKET_ERROR) {
    printf("bind() failed.\n");
    closesocket(ListenSocket);
    WSACleanup();
    return ;
  }

  //----------------------
  // Listen for incoming connection requests.
  // on the created socket
  if (listen( ListenSocket, 1 ) == SOCKET_ERROR) {
    printf("Error listening on socket.\n");
    closesocket(ListenSocket);
    WSACleanup();
    return ;
  }

  //----------------------
  // Create a SOCKET for accepting incoming requests.
  printf("Waiting for client to connect...\n");

  //----------------------
  // Accept the connection.
  AcceptSocket = accept( ListenSocket, NULL, NULL );
  if (AcceptSocket == INVALID_SOCKET) {
    printf("accept failed: %d\n", WSAGetLastError());
    closesocket(ListenSocket);
    WSACleanup();
    return ;
  } else
  {
    printf("Client connected.\n");
    GtkWidget *dialog;
 dialog = gtk_message_dialog_new (NULL,0, GTK_MESSAGE_INFO,GTK_BUTTONS_OK,"lient connected");
 gtk_dialog_run(GTK_DIALOG(dialog));//顯示並運行對話框
 gtk_widget_destroy(dialog);//銷燬對話框
  }
  
  // No longer need server socket
  closesocket(ListenSocket);

  WSACleanup();
  return ;
}