FileMapTransTxtDlg.cpp
上传用户:lqt88888
上传日期:2009-12-14
资源大小:905k
文件大小:6k
- // FileMapTransTxtDlg.cpp : implementation file
- //
- #include "stdafx.h"
- #include "FileMapTransTxt.h"
- #include "FileMapTransTxtDlg.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()
- /////////////////////////////////////////////////////////////////////////////
- // CFileMapTransTxtDlg dialog
- CFileMapTransTxtDlg::CFileMapTransTxtDlg(CWnd* pParent /*=NULL*/)
- : CDialog(CFileMapTransTxtDlg::IDD, pParent)
- {
- //{{AFX_DATA_INIT(CFileMapTransTxtDlg)
- m_strDest = _T("");
- m_strSource = _T("");
- //}}AFX_DATA_INIT
- // Note that LoadIcon does not require a subsequent DestroyIcon in Win32
- m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
- }
- void CFileMapTransTxtDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialog::DoDataExchange(pDX);
- //{{AFX_DATA_MAP(CFileMapTransTxtDlg)
- DDX_Text(pDX, IDC_DEST, m_strDest);
- DDX_Text(pDX, IDC_SOURCE, m_strSource);
- //}}AFX_DATA_MAP
- }
- BEGIN_MESSAGE_MAP(CFileMapTransTxtDlg, CDialog)
- //{{AFX_MSG_MAP(CFileMapTransTxtDlg)
- ON_WM_SYSCOMMAND()
- ON_WM_PAINT()
- ON_WM_QUERYDRAGICON()
- ON_BN_CLICKED(IDC_WRITE, OnWrite)
- ON_BN_CLICKED(IDC_READ, OnRead)
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CFileMapTransTxtDlg message handlers
- BOOL CFileMapTransTxtDlg::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 CFileMapTransTxtDlg::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 CFileMapTransTxtDlg::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 CFileMapTransTxtDlg::OnQueryDragIcon()
- {
- return (HCURSOR) m_hIcon;
- }
- //将数据写到内存映射文件
- void CFileMapTransTxtDlg::OnWrite()
- {
- //更新数据
- UpdateData(TRUE);
- //创建内存映像对象
- HANDLE hMapping;
- LPSTR lpData;
- hMapping=CreateFileMapping((HANDLE)0xFFFFFFFF,NULL,PAGE_READWRITE,0,0x100,"MYSHARE");
- if(hMapping==NULL)
- {
- AfxMessageBox("CreateFileMapping() failed.");
- return;
- }
- //将文件的视图映射到一个进程的地址空间上,返回LPVOID类型的内存指针
- lpData=(LPSTR)MapViewOfFile(hMapping,FILE_MAP_ALL_ACCESS,0,0,0);
- if(lpData==NULL)
- {
- AfxMessageBox("MapViewOfFile() failed.");
- return;
- }
- //给这段映像内存写数据
- sprintf(lpData,m_strSource);
-
- //释放映像内存
- UnmapViewOfFile(lpData);
- }
- //将数据从内存映射文件读出
- void CFileMapTransTxtDlg::OnRead()
- {
- //创建内存映像对象
- HANDLE hMapping;
- LPSTR lpData;
- hMapping=CreateFileMapping((HANDLE)0xFFFFFFFF,NULL,PAGE_READWRITE,0,0x100,"MYSHARE");
- if(hMapping==NULL)
- {
- AfxMessageBox("CreateFileMapping() failed.");
- return;
- }
- //将文件的视图映射到一个进程的地址空间上,返回LPVOID类型的内存指针
- lpData=(LPSTR)MapViewOfFile(hMapping,FILE_MAP_ALL_ACCESS,0,0,0);
- if(lpData==NULL)
- {
- AfxMessageBox("MapViewOfFile() failed.");
- return;
- }
- //给这段映像内存的数据赋给本地变量
- m_strDest.Format("%s",lpData);
- //释放映像内存
- UnmapViewOfFile(lpData);
-
- //更新数据
- UpdateData(FALSE);
- }