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// 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);
}
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