文件复制过程显示进度条

// FileCopyDlg.cpp : implementation file // #include "stdafx.h" #include "FileCopy.h" #include "FileCopyDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // 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: virtual void 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() ///////////////////////////////////////////////////////////////////////////// // CFileCopyDlg dialog CFileCopyDlg::CFileCopyDlg(CWnd* pParent /*=NULL*/) : CDialog(CFileCopyDlg::IDD, pParent) { //{{AFX_DATA_INIT(CFileCopyDlg) //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); readfile=NULL; writefile=NULL; pvData = NULL; } void CFileCopyDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CFileCopyDlg) DDX_Control(pDX, IDC_FILEPROCESSER, m_fileproc); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CFileCopyDlg, CDialog) //{{AFX_MSG_MAP(CFileCopyDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_ADD, OnAdd) ON_BN_CLICKED(IDC_PUT, OnPut) ON_BN_CLICKED(IDC_COPY, OnCopy) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CFileCopyDlg message handlers BOOL CFileCopyDlg::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 m_fileproc.SetRange(0,100); m_fileproc.SetPos(0); // TODO: Add extra initialization here return TRUE; // return TRUE unless you set the focus to a control } void CFileCopyDlg::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 CFileCopyDlg::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 CFileCopyDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CFileCopyDlg::OnAdd() { CFileDialog log(TRUE,"文件","*.*",OFN_HIDEREADONLY,"FILE(*.*)|*.*||",NULL); if(log.DoModal()==IDOK) { pathname=log.GetPathName(); strname=log.GetFileName(); GetDlgItem(IDC_EDADD)->SetWindowText(pathname); } } void CFileCopyDlg::OnPut() { if(strname.IsEmpty()) return; BROWSEINFO bi; char buffer[MAX_PATH]; ZeroMemory(buffer,MAX_PATH); bi.hwndOwner=GetSafeHwnd(); bi.pidlRoot=NULL; bi.pszDisplayName=buffer; bi.lpszTitle="选择一个文件夹"; bi.ulFlags=BIF_EDITBOX; bi.lpfn=NULL; bi.lParam=0; bi.iImage=0; LPITEMIDLIST pList=NULL; if((pList=SHBrowseForFolder(&bi))!=NULL) { char path[MAX_PATH]; ZeroMemory(path,MAX_PATH); SHGetPathFromIDList(pList,path); fullname=path; if(fullname.Right(1)!="\\") fullname.Format("%s\\%s",path,strname); else fullname.Format("%s%s",path,strname); GetDlgItem(IDC_EDDEST)->SetWindowText(fullname); } } void CFileCopyDlg::OnCopy() { if(pathname.IsEmpty()) return; if(fullname.IsEmpty()) return; readfile=new CFile(pathname,CFile::modeRead); HANDLE hfile=::CreateFile(fullname,GENERIC_WRITE|GENERIC_WRITE,0,0,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,0); CloseHandle(hfile); writefile=new CFile(fullname,CFile::modeWrite); filelen=readfile->GetLength(); ldiv_t r; r=ldiv(filelen,100); long pos=r.quot; long ipos; ipos=pos; int i=0; hGlobal = GlobalAlloc(GMEM_MOVEABLE,512); pvData = GlobalLock(hGlobal); while(1){ ZeroMemory(pvData,512); readlen=readfile->ReadHuge(pvData,512); poslen=readfile->GetPosition(); if(poslen>ipos) { ipos+=pos; i++; } m_fileproc.SetPos(i); m_fileproc.Invalidate(); writefile->WriteHuge(pvData,readlen); if(poslen==filelen) break; } AfxMessageBox("复制完成"); m_fileproc.SetPos(0); GlobalUnlock(hGlobal); readfile->Close(); writefile->Close(); }