VC++ 编程荟萃(61-80)

61 程序中运行其他程序

void CMyDlg::OnSelectFile() {// TODO: Add your control notification handler code hereCFileDialog SelectFile(FALSE,NULL,"",OFN_HIDEREADONLY,"All Files(*.*)|*.*||",NULL);SelectFile.m_ofn.lpstrTitle="选择需要运行的文件";//SelectPath.m_ofn.lpstrInitialDir="////整个网络";if(SelectFile.DoModal()==IDOK){ CString SourceName; SourceName=SelectFile.GetPathName(); ShellExecute(NULL,"open",SourceName,NULL,NULL,SW_SHOW); }}

62 隐藏应用程序

//.htypedef DWORD (_stdcall *FunctionPointer)(DWORD,DWORD);HINSTANCE PointToKernel;FunctionPointer RegSerProcess;//.cpp 在XP sp3中无效.加载dll后,RegSerProcess地址为0x0000000OnInitDialog()中PointToKernel=GetModuleHandle("kernel32.dll");if(PointToKernel)RegSerProcess=(FunctionPointer)GetProcAddress(PointToKernel,"RegisterServiceProcess");elseAfxMessageBox("NULL,fuck you");void CMyDlg::OnHideInBox() {if(RegSerProcess)RegSerProcess(NULL,1); m_tip="任务管理器中已没有本进程标识";this->UpdateData(FALSE);}void CMyDlg::OnDisplayInBox() {// TODO: Add your control notification handler code hereif(RegSerProcess)RegSerProcess(NULL,0);m_tip="本进程标识已显示在任务管理器中";this->UpdateData(FALSE);}void CMyDlg::OnDestroy() {CDialog::OnDestroy();// TODO: Add your message handler code here if(PointToKernel) FreeLibrary(PointToKernel);}

63 获取文件相关信息

/m_** 为checkbox控件变量void CFileInfoDlg::OnGetinfo() {// TODO: Add your control notification handler code here //获取扩展名m_ext = PathFindExtension( "c://WINNT//notepad.exe" );OFSTRUCT ReOpenBuff;//获取文件句柄HFILE handle = OpenFile( "c://WINNT//notepad.exe", &ReOpenBuff, GENERIC_READ );//取得文件大小m_size = GetFileSize ( (HANDLE)handle, NULL);//取得文件属性DWORD reValue = GetFileAttributes( "c://WINNT//notepad.exe");if ( reValue == FILE_ATTRIBUTE_ARCHIVE) m_archive = TRUE;if ( reValue == FILE_ATTRIBUTE_HIDDEN ) m_hide = TRUE;if ( reValue == FILE_ATTRIBUTE_READONLY) m_readOnly = TRUE;UpdateData ( FALSE);} 

64 删除文件

void CMyDlg::OnDelete() {// TODO: Add your control notification handler code here CFileDialog SelectFile(TRUE,NULL,"",OFN_HIDEREADONLY,"All Files(*.*)|*.*||",NULL);SelectFile.m_ofn.lpstrTitle="选择需要删除的文件";if(SelectFile.DoModal()==IDOK){ CString FileName; FileName=SelectFile.GetPathName(); CString temp; temp="确定要删除文件："; temp+=FileName; if(AfxMessageBox(temp,MB_OKCANCEL,0)==IDOK) { DeleteFile(FileName); m_tip="文件成功删除！"; UpdateData(FALSE); } }}

65 打开/保存 文件对话框使用

void CMyDlg::OnOpenBox() {// TODO: Add your control notification handler code hereCFileDialog openBox(TRUE,NULL,"",OFN_HIDEREADONLY,"All Files(*.*)|*.*||",NULL);openBox.m_ofn.lpstrTitle="打开文件对话框";openBox.DoModal();}void CMyDlg::OnSaveBox() {// TODO: Add your control notification handler code hereCFileDialog SaveBox(FALSE,NULL,"",OFN_HIDEREADONLY,"All Files(*.*)|*.*||",NULL);SaveBox.m_ofn.lpstrTitle="保存文件对话框";SaveBox.DoModal();}

66 存档 Archive

//docBOOL CMyArchiveDoc::OnNewDocument(){if (!CDocument::OnNewDocument())return FALSE;// TODO: add reinitialization code here// (SDI documents will reuse this document)m_date="Default";//CString m_date 现在将m_date的数据保存在文件中return TRUE;}void CMyArchiveDoc::Serialize(CArchive& ar){if (ar.IsStoring()){// TODO: add storing code herear<<this->m_date;//向文档中写入数据}else{// TODO: add loading code herear>>this->m_date;//从文档中读取数据}}//viewvoid CMyArchiveView::OnDraw(CDC* pDC){CMyArchiveDoc* pDoc = GetDocument();ASSERT_VALID(pDoc);// TODO: add draw code for native data herepDC->TextOut(50,50,pDoc->m_date);//将m_date绘制.}void CMyArchiveView::OnEditDate() {// TODO: Add your command handler code hereCTime date=CTime::GetCurrentTime();GetDocument()->m_date=date.Format("修改于 %Y年%m月%d日 %H:%M:%S");GetDocument()->SetModifiedFlag();//保证未存盘关闭时提示存盘Invalidate();//使视图无效从而导致OnDraw()的调用}

67  获取系统,windows,当前目录

void CMyDlg::OnGetCurDir() {// TODO: Add your control notification handler code here GetCurrentDirectory(100,Buffer);m_CurDir=Buffer;this->UpdateData(FALSE);}void CMyDlg::OnGetWinDir() {// TODO: Add your control notification handler code here GetWindowsDirectory(Buffer,100);m_winDir=Buffer;this->UpdateData(FALSE);}void CMyDlg::OnGetSysDir() {// TODO: Add your control notification handler code hereGetSystemDirectory(Buffer,100);m_sysDir=Buffer;this->UpdateData(FALSE);}

68 改变系统时间

void CMyDlg::OnInput() {// TODO: Add your control notification handler code here this->UpdateData(TRUE);int year=0;int month=0;int day=0;year=atoi(m_year);month=atoi(m_month);day=atoi(m_day);if(year)NowTime.wYear=year;if(month)NowTime.wMonth=month;if(day)NowTime.wDay=day;if(!SetLocalTime(&NowTime)){AfxMessageBox("设置系统时间出错，检查输入是否正确");} else{ m_NowTime.Format(_T("%d - %d - %d"),NowTime.wYear,NowTime.wMonth,NowTime.wDay); this->UpdateData(FALSE);}}

69 获取文件夹信息(与67 相似)

70 SDI支持输入并且打印

//class CPrintDemoView : public CEditView//将CView改成CEditView//BOOL CPrintDemoView::PreCreateWindow(CREATESTRUCT& cs){// TODO: Modify the Window class or styles here by modifying// the CREATESTRUCT csBOOL bPreCreated = CEditView::PreCreateWindow(cs);cs.style &= ~(ES_AUTOHSCROLL|WS_HSCROLL);// Enable word-wrapping 自动换行风格return bPreCreated;}//打印BOOL CPrintDemoView::OnPreparePrinting(CPrintInfo* pInfo){// default CEditView preparationreturn CEditView::OnPreparePrinting(pInfo);}void CPrintDemoView::OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo){// Default CEditView begin printing.CEditView::OnBeginPrinting(pDC, pInfo);}void CPrintDemoView::OnEndPrinting(CDC* pDC, CPrintInfo* pInfo){// Default CEditView end printingCEditView::OnEndPrinting(pDC, pInfo);}//保存void CPrintDemoDoc::Serialize(CArchive& ar){// CEditView contains an edit control which handles all serialization((CEditView*)m_viewList.GetHead())->SerializeRaw(ar);}  

71 主题帮助(略)

72 状态栏style,内容变化

//.hafx_msg void OnStatus();afx_msg void OnUpdateMyPane(CCmdUI*pCmdUI);//.cppBEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)//{{AFX_MSG_MAP(CMainFrame)ON_WM_CREATE()ON_COMMAND(ID_STATUS, OnStatus) //菜单栏某图标ID//}}AFX_MSG_MAPON_UPDATE_COMMAND_UI(ID_MYPANE,OnUpdateMyPane)//状态栏的一个string table的idEND_MESSAGE_MAP()void CMainFrame::OnUpdateMyPane(CCmdUI *pCmdUI){pCmdUI->Enable();CTime date=CTime::GetCurrentTime();CString str=date.Format(" %Y年%m月%d日 %H:%M:%S");pCmdUI->SetText(str);}void CMainFrame::OnStatus() {// TODO: Add your command handler code hereint index=this->m_wndStatusBar.CommandToIndex(ID_MYPANE);if(!flag){this->m_wndStatusBar.SetPaneStyle(index,SBPS_POPOUT);//改变pane的样式为突出显示flag=1;}else{this->m_wndStatusBar.SetPaneStyle(index,SBPS_NORMAL);//恢复正常样式flag=0;}}

73 Date控件和日历控件的使用

/Date控件和Calendar控件的事件,相互赋值达到同步void CMyDateDlg::OnSelchangeMonthcalendar1(NMHDR* pNMHDR, LRESULT* pResult) {// TODO: Add your control notification handler code hereUpdateData(TRUE);this->m_datetime=this->m_calendar;UpdateData(FALSE);*pResult = 0;}void CMyDateDlg::OnDatetimechangeDatetimepicker1(NMHDR* pNMHDR, LRESULT* pResult) {// TODO: Add your control notification handler code hereUpdateData(TRUE);this->m_calendar=this->m_datetime;UpdateData(FALSE);*pResult = 0;}

74 调整鼠标双击间隔时间

//初始化SpeedSlider控件OnInitDialog(){......m_MouseSpeedSlider.SetRange(100,900,FALSE);MouseSpeed=::GetDoubleClickTime();m_MouseSpeedSlider.SetPos(MouseSpeed);CString str1;str1.Format("%d毫秒",MouseSpeed);SetDlgItemText(IDC_STATICSPEED,str1);......}//指示单击水平滚动条void CMouseDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) {// TODO: Add your message handler code here and/or call defaultMouseSpeed=m_MouseSpeedSlider.GetPos(); CString str1;str1.Format("%d毫秒",MouseSpeed); SetDlgItemText(IDC_STATICSPEED,str1);CDialog::OnHScroll(nSBCode, nPos, pScrollBar);}//设置鼠标双击间隔时间void CMouseDlg::OnOK() {SetDoubleClickTime(MouseSpeed);} 

75 从局域网copy文件到本机

void CMyDlg::OnSelect() {// TODO: Add your control notification handler code hereCFileDialog SelectPath(FALSE,NULL,"",OFN_HIDEREADONLY,"All Files(*.*)|*.*||",NULL);SelectPath.m_ofn.lpstrTitle="选择需要拷贝的局域网中的文件";SelectPath.m_ofn.lpstrInitialDir="////整个网络";if(SelectPath.DoModal()==IDOK){ SourceName=SelectPath.GetPathName(); AfxMessageBox(SourceName);}}void CMyDlg::OnCopyTo() {// TODO: Add your control notification handler code here CFileDialog TargetPath(FALSE,NULL,"",OFN_HIDEREADONLY,"All Files(*.*)|*.*||",NULL);TargetPath.m_ofn.lpstrTitle="选择拷贝到本地机上的目标文件";//注意要输入完整的扩展名if(TargetPath.DoModal()==IDOK){ CString TargetName; TargetName=TargetPath.GetPathName(); if(!CopyFile(SourceName,TargetName,TRUE)) {//如果已有相同文件名在该目录下 CString tipMessage; //合成提示信息 tipMessage=TargetName; tipMessage.Insert(0,"文件“"); tipMessage.Insert(tipMessage.GetLength(),"”已经存在，是否替换？"); //输出提示信息 if(AfxMessageBox(tipMessage,MB_OKCANCEL,0)==MB_OK) { //替换该文件 CopyFile(SourceName,TargetName,FALSE); } }}} 

76 获取/设置计算机名称

void CCompNameDlg::OnGetname() {// TODO: Add your control notification handler code herechar buf[MAX_COMPUTERNAME_LENGTH + 1];unsigned long uSize=MAX_COMPUTERNAME_LENGTH ;if(!GetComputerName(buf,&uSize))AfxMessageBox("Failed!");buf[uSize]=0;this->m_name.Format("%s",buf);UpdateData(FALSE);}void CCompNameDlg::OnSetname() {// TODO: Add your control notification handler code herechar buf[MAX_COMPUTERNAME_LENGTH + 1];UpdateData(TRUE);strcpy(buf,m_name);if(!SetComputerName(buf))AfxMessageBox("Failed!");}

77 根据计算机名字获取IP

void CName2IpDlg::OnConvert() {// TODO: Add your control notification handler code hereHOSTENT *pHe;UpdateData(TRUE);pHe=gethostbyname(m_host_name);//m_host_name为TextBox变量,如果为空,默认为本机struct in_addr in;in.s_addr=*((unsigned long *)pHe->h_addr_list[0]);char * p=inet_ntoa(in);m_host_ip.Format("%s",p);UpdateData(FALSE);}

78 根据IP获取计算机名字

void CIp2NameDlg::OnConvert() {// TODO: Add your control notification handler code hereHOSTENT *pHe;unsigned long addr;UpdateData(TRUE);addr=inet_addr(m_host_ip);//m_host_name为TextBox变量,如果为空,默认为本机pHe=gethostbyaddr((char*)&addr,4,AF_INET );//出错处理m_host_name.Format("%s",pHe->h_name);UpdateData(FALSE);} 

79 全屏图片和全黑背景

//继承窗口类//hclass CScreensaverWnd : public CWnd{// Constructionpublic:CScreensaverWnd(); static LPCSTR lpszClassName; //注册类名// Attributespublic:// Operationspublic:// Overrides// ClassWizard generated virtual function overrides//{{AFX_VIRTUAL(CScreensaverWnd)protected:virtual void PostNcDestroy();//}}AFX_VIRTUAL// Implementationpublic:BOOL Create();virtual ~CScreensaverWnd();// Generated message map functionsprotected:UINT m_timer;CPoint m_prePoint; //检测鼠标移动void DrawBitmap(CDC& dc, int nIndexBit);...........}//cppCScreensaverWnd::CScreensaverWnd(){m_prePoint=CPoint(-1, -1);}CScreensaverWnd::~CScreensaverWnd(){}LPCSTR CScreensaverWnd::lpszClassName=NULL;//绘图void CScreensaverWnd::DrawBitmap(CDC &dc, int nIndexBit){CDC dcmem;dcmem.CreateCompatibleDC(&dc);CBitmap m_Bitmap;m_Bitmap.LoadBitmap(IDB_BITMAP1+nIndexBit);dcmem.SelectObject(m_Bitmap);dc.BitBlt(0,0,640,480,&dcmem,0,0,SRCCOPY);}//创建窗口BOOL CScreensaverWnd::Create(){if(lpszClassName==NULL) {lpszClassName=AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW, ::LoadCursor(AfxGetResourceHandle(),MAKEINTRESOURCE(IDC_NOCURSOR)));//注册类；IDC_NOCURSOR为新建光标的ID，这个光标没有任何图案}CRect rect(0, 0, ::GetSystemMetrics(SM_CXSCREEN),::GetSystemMetrics(SM_CYSCREEN));CreateEx(WS_EX_TOPMOST, lpszClassName, _T(""), WS_VISIBLE|WS_POPUP, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, GetSafeHwnd(), NULL, NULL); //创建一个全屏窗口m_timer=SetTimer(1, 500, NULL);//计时器，ID_TIMER别忘了定义return TRUE;}//以下消息关闭程序.void CScreensaverWnd::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) {// TODO: Add your message handler code here and/or call defaultPostMessage(WM_CLOSE);CWnd::OnKeyDown(nChar, nRepCnt, nFlags);}void CScreensaverWnd::OnLButtonDown(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultPostMessage(WM_CLOSE);CWnd::OnLButtonDown(nFlags, point);}void CScreensaverWnd::OnRButtonDown(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultPostMessage(WM_CLOSE);CWnd::OnRButtonDown(nFlags, point);}void CScreensaverWnd::OnMButtonDown(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultPostMessage(WM_CLOSE);CWnd::OnMButtonDown(nFlags, point);}void CScreensaverWnd::OnSysKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) {// TODO: Add your message handler code here and/or call defaultPostMessage(WM_CLOSE);CWnd::OnSysKeyDown(nChar, nRepCnt, nFlags);}//为了防止同时运行两个相同的程序，下面两个函数是必需的：void CScreensaverWnd::OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized) {CWnd::OnActivate(nState, pWndOther, bMinimized);// TODO: Add your message handler code hereif (nState==WA_INACTIVE)PostMessage(WM_CLOSE);}void CScreensaverWnd::OnActivateApp(BOOL bActive, HTASK hTask) {/*CWnd::OnActivateApp(bActive,hTask);// TODO: Add your message handler code hereif(!bActive) //is being deactivatedPostMessage(WM_CLOSE);*/}//OnPaint()函数将全屏窗口置为黑色void CScreensaverWnd::OnPaint() {CPaintDC dc(this); // device context for painting// TODO: Add your message handler code hereCBrush brush(RGB(0,0,0));CRect rect;GetClientRect(rect);dc.FillRect(&rect,&brush);// Do not call CWnd::OnPaint() for painting messages}void CScreensaverWnd::OnMouseMove(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultif(m_prePoint == CPoint(-1,-1))m_prePoint = point;else if(m_prePoint!=point)PostMessage(WM_CLOSE); CWnd::OnMouseMove(nFlags, point);}void CScreensaverWnd::OnDestroy() {CWnd::OnDestroy();// TODO: Add your message handler code hereKillTimer(m_timer);}void CScreensaverWnd::OnTimer(UINT nIDEvent) {// TODO: Add your message handler code here and/or call defaultCClientDC dc(this);static nIndexBit=0;if(nIndexBit>=3)nIndexBit=0;DrawBitmap(dc, nIndexBit++);CWnd::OnTimer(nIDEvent);}void CScreensaverWnd::PostNcDestroy() {// TODO: Add your specialized code here and/or call the base classdelete this;CWnd::PostNcDestroy();}

80 帮助文档(略)