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            把握命運，追逐夢想
            

            對自己所做的事要有興趣，同時還要能夠堅持不懈
            

            


            
	
		

            統計
            
	
		

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            閱讀排行榜
            


		

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			一個簡單的網絡小程序
		
            
		
            //tcpsever.cpp
            #include"targetver.h"
            #define WIN32_LEAN_AND_MEAN
            #include            <windows.h>
            #include            <commctrl.h>
            #include            <tchar.h>
            #include            <winsock2.h>
            #include            "resource.h"
            #include            <string>



            HINSTANCE g_hInst             = NULL;                                // 當前實例
            HWND g_hWndDLG = NULL;
            HANDLE g_hIconSm            = NULL;
            HANDLE g_hIconBg             = NULL;
            HANDLE g_hEnInfo             = NULL;
            SOCKET  g_sServer             = INVALID_SOCKET;
            SOCKET g_sClient1             = INVALID_SOCKET;
            SOCKET g_sClient2             = INVALID_SOCKET;
            std::wstring wstrInfo;
            TCHAR  DataBuffer[            256];

            // 此代碼模塊中包含的函數的前向聲明:
            BOOL InitWindow();
            BOOL InitSock();
            void AcceptClient();
            void RecvInfo();
            void CleanupSock();
            INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);

            int APIENTRY _tWinMain(HINSTANCE hInstance,
                                 HINSTANCE hPrevInstance,
                                 LPTSTR    lpCmdLine,
                                             int       nCmdShow)
            {
                UNREFERENCED_PARAMETER(hPrevInstance);
                UNREFERENCED_PARAMETER(lpCmdLine);

                g_hInst             = hInstance;

                            if(!InitSock())
                            {
                                return FALSE;
                }

                            if(!InitWindow())
                            {
                                return FALSE;
                }

                MSG msg             = {0};

                            // 主消息循環:
                while (msg.message != WM_QUIT)
                            {
                                if(PeekMessage(&msg, g_hWndDLG, 0, 0,PM_REMOVE))
                                {
                                    if(IsDialogMessage(g_hWndDLG,&msg))
                                    {
                            wstrInfo.append(L            "i");
                        }
                                    else
                                    { 
                            TranslateMessage(            &msg); 
                            DispatchMessage(            &msg); 
                        }
                    }
                                else
                                {
                                    /*AcceptClient();
                        RecvInfo();            */
                    }

                }

                CleanupSock();
                            return (int) msg.wParam;
            }



            // “關于”框的消息處理程序。
            INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
            {
                            switch (message)
                            {
                                //對于WM_INITDIALOG消息,必須要返回TRUE,無論是否處理這個消息,系統都會處理這個消息的.
                case WM_INITDIALOG:
                                //todo:設置初始化時對話框,以及控件的初始狀態值
                                //這里沒有辦法seticon，因為此時對話框句柄還沒得到，無法指明窗口,似乎需要窗口句柄的都無法在這里初始化
                                //暈，犯糊涂，上面說錯了，消息發送的時候就帶著窗口句柄呢！
                    SendMessage(hDlg,WM_SETICON,ICON_SMALL,(LPARAM)g_hIconSm);
                    SendMessage(hDlg,WM_SETICON,ICON_BIG,(LPARAM)g_hIconBg);
                                return (INT_PTR)TRUE;

                            case WM_COMMAND:
                                switch (LOWORD(wParam))
                                {
                                case IDCANCEL:
                        DestroyWindow(g_hWndDLG);
                                    return (INT_PTR)TRUE;
                                    break;
                    }
                                break;
                            case WM_CLOSE:
                    MessageBox(hDlg,L            "X按鈕阻止使用",L"無效",MB_ICONINFORMATION);
                                return (INT_PTR)TRUE;
                                break;
                            case WM_DESTROY:
                    PostQuitMessage(            0);
                                return (INT_PTR)TRUE;
                                break;
                }
                            return (INT_PTR)FALSE;
            }



            BOOL InitWindow()
            {

                            //使用LoadImage有很多好處，它可以根據參數中的寬高來從具有多個image的文件中選擇合適大小的image
                            //盡量避免調用LoadIcon，幾次試驗發現，多次調用LoadIcon導致默認圖標被改變的問題
                g_hIconSm = LoadImage(g_hInst,MAKEINTRESOURCE(IDI_ICON1),IMAGE_ICON,16, 
                                16,LR_DEFAULTCOLOR);
                g_hIconBg             = LoadImage(g_hInst,MAKEINTRESOURCE(IDI_ICON1),IMAGE_ICON,32, 
                                32,LR_DEFAULTCOLOR);

                
                g_hWndDLG             = CreateDialog(g_hInst, MAKEINTRESOURCE(IDD_DIALOGSERVER), NULL, About);

                            if(g_hWndDLG == NULL)
                            {
                                return FALSE;
                }

                ShowWindow(g_hWndDLG,SW_SHOW);

                            return TRUE;
            }

            BOOL InitSock()
            {
                WSADATA wsaData;

                            if((WSAStartup(MAKEWORD(2,2),&wsaData)) != 0)
                            {
                    MessageBox(g_hWndDLG,L            "網絡模塊加載失敗,程序馬上退出",L"失敗",MB_ICONINFORMATION);
                                return FALSE;
                }

                            if((g_sServer = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))== INVALID_SOCKET)
                            {
                    MessageBox(g_hWndDLG,L            "套接字初始化失敗,程序馬上退出",L"失敗",MB_ICONINFORMATION);
                    WSACleanup();
                                return FALSE;
                }

                SOCKADDR_IN serverAddr;
                            int port = 5150;

                serverAddr.sin_family             = AF_INET;
                serverAddr.sin_port             = htons(port);    
                serverAddr.sin_addr.s_addr             = htonl(INADDR_ANY);

                            if (bind(g_sServer, (SOCKADDR *)&serverAddr, sizeof(serverAddr))  == SOCKET_ERROR)
                            {
                    MessageBox(g_hWndDLG,L            "套接字綁定失敗,程序馬上退出",L"失敗",MB_ICONINFORMATION);
                    closesocket(g_sServer);
                    WSACleanup();
                                return FALSE;
                }

                            if(listen(g_sServer, 2) == SOCKET_ERROR)
                            {
                    MessageBox(g_hWndDLG,L            "監聽請求失敗,程序馬上退出",L"失敗",MB_ICONINFORMATION);
                    closesocket(g_sServer);
                    WSACleanup();
                                return FALSE;
                }

                u_long iMode             = 0;
                ioctlsocket(g_sServer, FIONBIO,             &iMode);
                            return TRUE;
            }

            void AcceptClient()
            {
                SOCKADDR_IN   clientAddr;
                            int    clientAddrLen;
                            if(g_sClient1 == INVALID_SOCKET)
                            {
                                if ((g_sClient1 = accept(g_sServer, (SOCKADDR *) &clientAddr, &clientAddrLen)) == INVALID_SOCKET)
                                {
                                    if( WSAEWOULDBLOCK != WSAGetLastError() )
                                    {
                            wstrInfo.append(L            "\n接受請求失敗");
                            SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                        }
                                    else
                                    {
                                        return;
                        }
                    }
                                else
                                {
                        wstrInfo.append(L            "\n接受請求成功");
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                    }
                }
                            if(g_sClient2 == INVALID_SOCKET)
                            {
                                if ((g_sClient2 = accept(g_sServer, (SOCKADDR *) &clientAddr, &clientAddrLen)) == INVALID_SOCKET)
                                {
                                    if( WSAEWOULDBLOCK != WSAGetLastError() )
                                    {
                            wstrInfo.append(L            "\n接受請求失敗");
                            SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                        }
                                    else
                                    {
                                        return;
                        }
                    }
                                else
                                {
                        wstrInfo.append(L            "\n接受請求成功");
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                    }
                }
            }

            void RecvInfo()
            {
                            int ret = 0;
                            if(g_sClient1 != SOCKET_ERROR)
                            {
                                if (ret = recv(g_sClient1, (char*)DataBuffer, sizeof(DataBuffer), 0) == SOCKET_ERROR)
                                {
                        wstrInfo.append(L            "\nrecv失敗");
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());

                    }
                                else if(ret == 0)
                                {
                        closesocket(g_sClient1);
                        g_sClient1             = INVALID_SOCKET;
                        wstrInfo.append(L            "\n連接斷開");
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                    }
                                else
                                {
                        wstrInfo.append(L            "\n");
                        wstrInfo.append(DataBuffer,ret            /2);
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                    }
                }

                            if(g_sClient2 != SOCKET_ERROR)
                            {
                                if (ret = recv(g_sClient2, (char*)DataBuffer, sizeof(DataBuffer), 0) == SOCKET_ERROR)
                                {
                        wstrInfo.append(L            "\nrecv失敗");
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                    }
                                else if(ret == 0)
                                {
                        closesocket(g_sClient2);
                        g_sClient2             = INVALID_SOCKET;
                        wstrInfo.append(L            "\n連接斷開");
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                    }
                                else
                                {
                        wstrInfo.append(L            "\n");
                        wstrInfo.append(DataBuffer,ret            /2);
                        SetDlgItemText(g_hWndDLG,IDC_ENINFO,wstrInfo.c_str());
                    }
                }

            }

            void CleanupSock()
            {
                            if(g_sClient1 != INVALID_SOCKET)
                            {
                    closesocket(g_sClient1);
                    g_sClient1             = INVALID_SOCKET;
                }
                            if(g_sClient2 != INVALID_SOCKET)
                            {
                    closesocket(g_sClient2);
                    g_sClient2             = INVALID_SOCKET;
                }
                            if(g_sServer != INVALID_SOCKET )
                            {
                    closesocket(g_sServer);
                    g_sServer             = INVALID_SOCKET;
                }
                WSACleanup();
            }
            

		
            
			posted on 2009-07-30 07:22 把握命運 閱讀(170) 評論(0)  編輯 收藏 引用  
		
            
	
            
	
	


	


            
	    
    




            






            

				

            


    
    







            
	   
	



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