mpstestsrvrdlg.cpp

《VC++ 编程技巧与示例 .rar》各个示例代码绝对可用

// MPSTestSrvrDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MPSTestSrvr.h"
#include "MPSTestSrvrDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
//●
#include "memory.h"

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()

/////////////////////////////////////////////////////////////////////////////
// CMPSTestSrvrDlg dialog

CMPSTestSrvrDlg::CMPSTestSrvrDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMPSTestSrvrDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMPSTestSrvrDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMPSTestSrvrDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMPSTestSrvrDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMPSTestSrvrDlg, CDialog)
	//{{AFX_MSG_MAP(CMPSTestSrvrDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_INPUT_NAME, OnInputName)
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMPSTestSrvrDlg message handlers

BOOL CMPSTestSrvrDlg::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
//创建内存映像文件：
	if(!CreateMapFile("用户信息"))
	{
		return FALSE;
	}
//向内存映像文件中填写默认数据：
	CString str="***";
	CopyString(m_Info.m_Name,str);
	CopyString(m_Info.m_Career,str);
	CopyString(m_Info.m_Things,str);

	m_Info.m_Exit=FALSE;
	m_Info.m_Wage=250;
	m_Info.m_Changing=TRUE;

	memcpy((void *)m_pMapView,(void *)&m_Info,sizeof(_Info));
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMPSTestSrvrDlg::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 CMPSTestSrvrDlg::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 CMPSTestSrvrDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

///////////////////////////////////////////////////////////////////////////////
//●　以下为后来添加的代码：

void CMPSTestSrvrDlg::OnInputName() 
{
	// TODO: Add your control notification handler code here
	m_Info.m_Changing=!m_Info.m_Changing;
	if(m_Input.DoModal()==IDOK)
	{
		CopyString(m_Info.m_Career,m_Input.m_Career);
		CopyString(m_Info.m_Name,m_Input.m_Name);
		CopyString(m_Info.m_Things,m_Input.m_Things);
		m_Info.m_Wage=m_Input.m_Wage;
		m_Info.m_Exit=FALSE;
		//向内存映像文件中填写数据：
		memcpy((void *)m_pMapView,(void *)&m_Info,sizeof(_Info));
	}
}

BOOL CMPSTestSrvrDlg::CreateMapFile(CString fn)
{
	m_hMapObject=::CreateFileMapping((HANDLE)-1,NULL,PAGE_READWRITE,0,sizeof(_Info),_T(fn));
	if(!m_hMapObject)
	{
		AfxMessageBox("创建内存映像文件失败！");
		return FALSE;
	}
	m_pMapView=(_Info *)::MapViewOfFile(m_hMapObject,FILE_MAP_WRITE,0,0,0);
	if(!m_pMapView)
	{
		AfxMessageBox("创建内存映像文件视图失败！");
		return FALSE;
	}
	return TRUE;
}

void CMPSTestSrvrDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	
	// TODO: Add your message handler code here
	m_Info.m_Exit=TRUE;
	Sleep(200);

	if(!m_hMapObject||!m_pMapView)
	{
		return;
	}
	
	if (!UnmapViewOfFile(m_pMapView)) 
	{ 
		AfxMessageBox("Could not unmap view of file."); 
	}
	::CloseHandle(m_hMapObject);
}


void CMPSTestSrvrDlg::CopyString(char * ch, CString str)
{
	int i;
	char * buf;
	buf=str.GetBuffer(str.GetLength());
	for(i=0;i<100;i++)
	{
		if(i<str.GetLength())
		{
			ch[i]=buf[i];
		}
		if(i==str.GetLength())
		{
			ch[i]='\0';
			return;
		}
	}
	ch[99]='\0';
}