| 附：一个socket教程 ;
switch(message)
{
case WM_CREATE:
hInstance=(HINSTANCE)GetWindowLong(hwnd,GWL_HINSTANCE);
//创建两个edit控件子窗口
//hwndReceiveEdit子窗口用于显示从客户端发来的数据
hwndReceiveEdit=CreateWindow(TEXT("edit"),NULL,WS_CHILD
|WS_VISIBLE|WS_DISABLED|WS_HSCROLL|WS_VSCROLL|WS_BORDER
|ES_MULTILINE|ES_AUTOVSCROLL|ES_AUTOHSCROLL|ES_LEFT,
0,0,0,0,hwnd,(HMENU)ID_RECEIVEEDIT,hInstance,NULL);
//hwndSendEdit 子窗口用于接受键盘输入，以发送到客户端.
hwndSendEdit=CreateWindow(TEXT("edit"),NULL,WS_CHILD
|WS_VISIBLE|WS_DISABLED|WS_HSCROLL|WS_VSCROLL|WS_BORDER
|ES_MULTILINE|ES_AUTOVSCROLL|ES_AUTOHSCROLL|ES_LEFT,
0,0,0,0,hwnd,(HMENU)ID_RECEIVEEDIT,hInstance,NULL);
//初始化套接字环境
if(nError=WSAStartup(MAKEWORD(2,0),&WSAData))
{//初始化套接字环境出错
MessageBox(hwnd,"WinSock Startup Error!","Sever",MB_ICONERROR|MB_OK);
return TRUE;
}
//创建本地套接字
local_server=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
if(local_server==INVALID_SOCKET)
{
MessageBox(hwnd,"Socket Creation Error!","Sever",MB_ICONERROR|MB_OK);
WSACleanup();//清除套接字环境
return TRUE;
}
//选择用户需要处理的网络事件:FD_ACCEPT and FD_READ
if(SOCKET_ERROR==WSAAsyncSelect(local_server,hwnd,
WM_SOCKET,FD_ACCEPT|FD_READ))
{//选择网络事件时出错
MessageBox(hwnd,"WSAAsyncSelect Error!","Sever",MB_ICONERROR|MB_OK);
closesocket(local_server);
WSACleanup();
return TRUE;
}
//设置本地断口地址
server.sin_family=AF_INET;//协议族
server.sin_port=htons(SERVER_PORT);//服务器端口
if(SOCKET_ERROR==bind(local_server,(struct sockaddr*)&server,sizeof(server)))
{//指定本地端口时出错
MessageBox(hwnd,"Bind Error","Sever",MB_ICONERROR|MB_OK);
closesocket(local_server);
WSACleanup();
return TRUE;
}
//监听
listen(local_server,5);
return 0;
case WM_SIZE:
MoveWindow(hwndReceiveEdit,0,0,LOWORD(lParam),HIWORD(lParam)/2,TRUE);
MoveWindow(hwndSendEdit,0,HIWORD(lParam)/2,
LOWORD(lParam),HIWORD(lParam)/2,TRUE);
return 0;
//用户字定义的套接字消息
case WM_SOCKET:
//获取事件代码
wEvent=WSAGETSELECTEVENT(lParam);
//获取错误代码
wError=WSAGETSELECTERROR(lParam);
switch(wEvent)
{
//建立连接
case FD_ACCEPT:
if(wError)
{
MessageBox(hwnd,"Accept Error!","Sever",MB_ICONERROR|MB_OK);
return 0;
}
//建立连接，local_listen套接字用于与客户端进行数据传输
nSize=sizeof(from);
local_listen=accept(local_server,(struct sockaddr*)&from,&nSize);
//使hwndsendedit子窗口变为可用，以接受键盘输入
EnableWindow(hwndSendEdit,TRUE);
return 0;
//接受数据
case FD_READ:
if(wError)
{
MessageBox(hwnd,"Accept Error!","Sever",MB_ICONERROR|MB_OK);
return 0;
}
//接受数据
recv(local_listen,szReceive,sizeof(szReceive)-1,0);
//在hwndreceiveedit子窗口中显示所接受的数据
SetWindowText(hwndReceiveEdit,szReceive);
return 0;
}
case WM_SETFOCUS:
SetFocus(hwndSendEdit);
return 0;
case WM_COMMAND:
//如果hwndsendedit子窗口的文本发生改变，就把他发送到客户端
if(LOWORD(wParam)==ID_SENDEDIT)
if(HIWORD(wParam)==EN_CHANGE)
{
GetWindowText(hwndSendEdit,szSend,GetWindowTextLength(hwndSendEdit)+1);
send(local_listen,szSend,strlen(szSend)+1,0);
}
return 0;
case WM_DESTROY:
//关闭本地套节字
closesocket(local_server);
closesocket(local_listen);
//清除套接字环境
WSACleanup();
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd,message,wParam,lParam);
} |
