window平台下gtk+socket简单学习。

1.使用dev-c++作为IDE时，需在”编译器项“中的“添加命令行编辑框“中添加socket的lib库-lwsock32
2.使用glade 添加一个按钮，并添加clicked的信号会自动生成此信号的回调函数
3.在此回调函数实现创建socket/绑定端口/监听套接字，发现有客户端连接就弹出一个对话框提示，然后关闭连接；具体代码如下：

#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));//显示并运行对话框
gtk_widget_destroy(dialog);//销毁对话框
}

// No longer need server socket
closesocket(ListenSocket);

WSACleanup();
return ;
}