写的异步通信CAsyncSocket程序m_hsoceket总是非法,请教!
MySocket.h
#ifndef __MYSOCKET_H__ #define __MYSOCKET_H__ class CDemoNetDlg; class CMySocket:public CAsyncSocket { public: CMySocket(); ~CMySocket(); public : void SetParent(CDemoNetDlg *); public : virtual void OnClose(int nErrorCode); virtual void OnConnect(int nErrorCode); virtual void OnReceive(int nErrorCode); private : CDemoNetDlg * m_pDemoNetDlg; }; #endif
MySocket.cpp
#include "stdafx.h" #include "DemoNetDlg.h" #include "MySocket.h" #include "DemoNet.h" CMySocket::CMySocket() { m_pDemoNetDlg=NULL; } CMySocket::~CMySocket() { m_pDemoNetDlg=NULL; } #if 0 BEGIN_MESSAGE_MAP(CMySocket, CAsyncSocket) //{{AFX_MSG_MAP(CMySocket) //}}AFX_MSG_MAP END_MESSAGE_MAP() #endif // 0 void CMySocket::OnConnect(int nErrorCode) { if(nErrorCode==0) m_pDemoNetDlg->OnConnect(); } void CMySocket::OnClose(int nErrorCode) { if(nErrorCode==0) m_pDemoNetDlg->OnClose(); } void CMySocket::OnReceive(int nErrorCode) { if(nErrorCode==0) m_pDemoNetDlg->OnReceive(); } void CMySocket::SetParent(CDemoNetDlg *pDlg) { m_pDemoNetDlg=pDlg; }
DemoNetDlg.h
// DemoNetDlg.h : 头文件 // #pragma once #include "MySocket.h" #include "Resource.h" // CDemoNetDlg 对话框 class CDemoNetDlg : public CDialog { // 构造 public: CDemoNetDlg(CWnd* pParent = NULL);// 标准构造函数 // 对话框数据 enum { IDD = IDD_DEMONET_DIALOG }; protected: virtual void DoDataExchange(CDataExchange* pDX);// DDX/DDV 支持 public: void OnReceive(); void OnConnect(); void OnClose(); CMySocket m_MySocket; private: CString m_strServName; int m_nServPort; // 实现 protected: HICON m_hIcon; // 生成的消息映射函数 virtual BOOL OnInitDialog(); afx_msg void OnPaint(); afx_msg HCURSOR OnQueryDragIcon(); DECLARE_MESSAGE_MAP() public: afx_msg void OnBnClickedOk(); };
DemoNetDlg.cpp?
// DemoNetDlg.cpp : 实现文件 // #include "stdafx.h" #include "DemoNet.h" #include "DemoNetDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #endif // CDemoNetDlg 对话框 CDemoNetDlg::CDemoNetDlg(CWnd* pParent /*=NULL*/) : CDialog(CDemoNetDlg::IDD, pParent) { m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); m_strServName = _T("127.0.0.1"); m_nServPort = 8009; } void CDemoNetDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); } BEGIN_MESSAGE_MAP(CDemoNetDlg, CDialog) ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP ON_BN_CLICKED(IDOK, &CDemoNetDlg::OnBnClickedOk) END_MESSAGE_MAP() // CDemoNetDlg 消息处理程序 BOOL CDemoNetDlg::OnInitDialog() { CDialog::OnInitDialog(); // 设置此对话框的图标。当应用程序主窗口不是对话框时,框架将自动 // 执行此操作 SetIcon(m_hIcon, TRUE); // 设置大图标 SetIcon(m_hIcon, FALSE); // 设置小图标 ShowWindow(SW_MINIMIZE); m_MySocket.SetParent(this); // TODO: 在此添加额外的初始化代码 return TRUE; // 除非将焦点设置到控件,否则返回 TRUE } // 如果向对话框添加最小化按钮,则需要下面的代码 // 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序, // 这将由框架自动完成。 void CDemoNetDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // 用于绘制的设备上下文 SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0); // 使图标在工作区矩形中居中 int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // 绘制图标 dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); } } //当用户拖动最小化窗口时系统调用此函数取得光标 //显示。 HCURSOR CDemoNetDlg::OnQueryDragIcon() { return static_cast<HCURSOR>(m_hIcon); } void CDemoNetDlg::OnBnClickedOk() { // TODO: 在此添加控件通知处理程序代码 m_MySocket.Create(); m_MySocket.Connect(m_strServName,m_nServPort); OnOK(); } void CDemoNetDlg::OnClose() { m_MySocket.Close(); } void CDemoNetDlg::OnConnect() { } void CDemoNetDlg::OnReceive() { }