[VC(Visual C++) ]- 05_定時判斷是否可連上網際網路並做時間記錄

[VC(Visual C++) ]- 05_定時判斷是否可連上網際網路並做時間記錄

本篇分享05_定時判斷是否可連上網際網路並做時間記錄(Timer 應用)程式，有興趣的(C/P)同好，歡迎來http://filemarkets.com/file/jashliao/77abb024/索取，因為我不會上傳檔案分享哈哈 ^ ^。

主要程式碼

// OfflineDlg.cpp : implementation file //   #include "stdafx.h" #include "Offline.h" #include "OfflineDlg.h" #include <intshcut.h> #include <Wininet.h> #ifdef _DEBUG #definenew DEBUG_NEW #undef THIS_FILE staticchar THIS_FILE[] = __FILE__; #endif FILE *fp=NULL; ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About   class CAboutDlg : public CDialog { public:     CAboutDlg();   // Dialog Data     //{{AFX_DATA(CAboutDlg)     enum { IDD = IDD_ABOUTBOX };     //}}AFX_DATA       // ClassWizard generated virtual function overrides     //{{AFX_VIRTUAL(CAboutDlg)     protected:     virtualvoid DoDataExchange(CDataExchange* pDX);    // DDX/DDV support     //}}AFX_VIRTUAL   // Implementation protected:     //{{AFX_MSG(CAboutDlg)     //}}AFX_MSG     DECLARE_MESSAGE_MAP() };   CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) {     //{{AFX_DATA_INIT(CAboutDlg)     //}}AFX_DATA_INIT }   void CAboutDlg::DoDataExchange(CDataExchange* pDX) {     CDialog::DoDataExchange(pDX);     //{{AFX_DATA_MAP(CAboutDlg)     //}}AFX_DATA_MAP }   BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)     //{{AFX_MSG_MAP(CAboutDlg)         // No message handlers     //}}AFX_MSG_MAP END_MESSAGE_MAP()   ///////////////////////////////////////////////////////////////////////////// // COfflineDlg dialog   COfflineDlg::COfflineDlg(CWnd* pParent /*=NULL*/)     : CDialog(COfflineDlg::IDD, pParent) {     //{{AFX_DATA_INIT(COfflineDlg)     m_v1 = _T("");     //}}AFX_DATA_INIT     // Note that LoadIcon does not require a subsequent DestroyIcon in Win32     m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); }   void COfflineDlg::DoDataExchange(CDataExchange* pDX) {     CDialog::DoDataExchange(pDX);     //{{AFX_DATA_MAP(COfflineDlg)     DDX_Text(pDX, IDC_EDIT1, m_v1);     //}}AFX_DATA_MAP }   BEGIN_MESSAGE_MAP(COfflineDlg, CDialog)     //{{AFX_MSG_MAP(COfflineDlg)     ON_WM_SYSCOMMAND()     ON_WM_PAINT()     ON_WM_QUERYDRAGICON()     ON_BN_CLICKED(IDC_BUTTON1, OnButton1)     ON_WM_TIMER()     //}}AFX_MSG_MAP END_MESSAGE_MAP()   ///////////////////////////////////////////////////////////////////////////// // COfflineDlg message handlers   BOOL COfflineDlg::OnInitDialog() {     CDialog::OnInitDialog();       // Add "About..." menu item to system menu.       // IDM_ABOUTBOX must be in the system command range.     ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);     ASSERT(IDM_ABOUTBOX < 0xF000);       CMenu* pSysMenu = GetSystemMenu(FALSE);     if (pSysMenu != NULL)     {         CString strAboutMenu;         strAboutMenu.LoadString(IDS_ABOUTBOX);         if (!strAboutMenu.IsEmpty())         {             pSysMenu->AppendMenu(MF_SEPARATOR);             pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);         }     }       // Set the icon for this dialog.  The framework does this automatically     //  when the application's main window is not a dialog     SetIcon(m_hIcon, TRUE);            // Set big icon     SetIcon(m_hIcon, FALSE);        // Set small icon         // TODO: Add extra initialization here         return TRUE;  // return TRUE  unless you set the focus to a control }   void COfflineDlg::OnSysCommand(UINT nID, LPARAM lParam) {     if ((nID & 0xFFF0) == IDM_ABOUTBOX)     {         CAboutDlg dlgAbout;         dlgAbout.DoModal();     }     else     {         CDialog::OnSysCommand(nID, lParam);     } }   // If you add a minimize button to your dialog, you will need the code below //  to draw the icon.  For MFC applications using the document/view model, //  this is automatically done for you by the framework.   void COfflineDlg::OnPaint() {     if (IsIconic())     {         CPaintDC dc(this); // device context for painting           SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);           // Center icon in client rectangle         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;           // Draw the icon         dc.DrawIcon(x, y, m_hIcon);     }     else     {         CDialog::OnPaint();     } }   // The system calls this to obtain the cursor to display while the user drags //  the minimized window. HCURSOR COfflineDlg::OnQueryDragIcon() {     return (HCURSOR) m_hIcon; }   void COfflineDlg::OnButton1() {     // TODO: Add your control notification handler code here     fp=fopen("record.txt","w");     Sleep(1000);     fclose(fp);     SetTimer(1,180000,NULL); }   void COfflineDlg::OnTimer(UINT nIDEvent) {     // TODO: Add your message handler code here and/or call default     DWORD dwFlags;     dwFlags=0;     char *pchrTime=NULL;     char *pchrv1=NULL;     CTime t1=CTime::GetCurrentTime();     CString m_strTime = t1.Format("%Y-%m-%d %H:%M:%S");     pchrTime=m_strTime.GetBuffer(0);     fp=fopen("record.txt","a");     UpdateData(true);     if(InternetCheckConnection("http://tw.yahoo.com",FLAG_ICC_FORCE_CONNECTION,dwFlags))     {         m_v1="OK";     }     else     {         m_v1="Don't Work";     }     UpdateData(false);     pchrv1=m_v1.GetBuffer(0);     fprintf(fp,"%s\t%s\n",pchrTime,pchrv1);     fclose(fp);     CDialog::OnTimer(nIDEvent); }