vc++期末复习

1、1 MFC程序的基本操作流程1利用ClassWizard为控件添加成员变量时，请写出所有的代码变化。（必考）将控件定义为CMy0901Dlg类的成员： CStringm_yyy;在CMy0901Dlg:DoDataExchange()中，自动维护DDX_Control() DDX_Text(pDX, IDC_EDIT1, m_yyy);在CMy0904Dlg:CMy0904Dlg()中初始化 m_yyy = _T("");2 利用ClassWizard为控件添加映射函数时，请写出所有的代码变化。（必考）在CMy0901Dlg类定义中，说明了以上函数：afx_msg void

2、 OnButton1();在CMy0901Dlg类实现中，创建控件CLICKED消息对应的函数： void CMy0901Dlg:OnButton1() 在CMy0901Dlg类实现中，在BEGIN_MESSAGE_MAP宏中，关联事件和函数：ON_BN_CLICKED(IDC_BUTTON1, OnButton1)3 常用事件的含义（抽五个）视图事件：WM_SIZE：改变窗口大小 WM_DESTROY：销毁窗口 WM_TIMER： WM_CREATE：创建窗口对话框 WM_INITDIALOG对话框上所有的子控件创建完成之后选择发送的消息 WM_PAINT：绘制窗口 WM_CLOSE：按钮

3、BN_CLICKED 单击了窗口菜单列表框：LBN_SELCHANGE列表框某项的选择被取消 LBN_DBLCLK双击了列表框的某一项编辑框EN_CHANGE 编辑框中的文本被更新4 常用的虚函数的作用（都考）文档类：OnOpenDocument OnSaveDocument Serialize 视图类：OnUpdate OnDraw应用程序类InitInstance 框架类PreCreateWindow OnCreateClient5 框架类的理解利用MFC的APPWizard创建一个应用工程。简述MFC自动生成了哪些类及其功能2 窗口程序中基本元素的操作技术(读程序、补充程序)快捷菜单、动

4、态菜单动态菜单（两个函数流程意思）/! / 获得程序菜单指针CMenu* pMenu = GetMenu(); / 获得第二个子菜单的指针 CMenu* pMenu1 = pMenu->GetSubMenu(1); / 添加一个分隔线pMenu1->AppendMenu(MF_SEPARATOR); / 在子菜单中增加一菜单项pMenu1->AppendMenu(MF_STRING,ID_NEW_MENUITEM+0,"新项1");/?AppendMenu ? ID_NEW_MENUITEM +0,"新项1" ?/ 避免系统将“无代码的

5、菜单项”自动置虚m_bAutoMenuEnable = FALSE; / 自动更新菜单状态开关 / 修改菜单后，应重画菜单 DrawMenuBar();return 0;/!BOOL CMainFrame:OnCommand(WPARAM wParam, LPARAM lParam) WORD nID =LOWORD(wParam); /?WORD nCode=HIWORD(wParam); /? if(nID=ID_NEW_MENUITEM+0) MessageBox("你选中了新的菜单项1");return CFrameWnd:OnCommand(wParam, lPa

6、ram);BOOL CMainFrame:PreCreateWindow(CREATESTRUCT& cs)if( !CFrameWnd:PreCreateWindow(cs) )return FALSE;/ TODO: Modify the Window class or styles here by modifying/ the CREATESTRUCT csreturn TRUE;快捷菜单（讲清所标程序流程）/!void CMainFrame:OnContextMenu(CWnd* pWnd, CPoint point) CMenu* pMenu=new CMenu; /? pM

7、enu->LoadMenu(IDR_MENU1); /? CMenu* pMenu1; pMenu1 = pMenu->GetSubMenu(0); /? pMenu1->TrackPopupMenu(TPM_LEFTALIGN|TPM_RIGHTBUTTON, point.x,point.y,this); /?void CMainFrame:OnMenu3() AfxMessageBox("OnMenu3()");状态栏（cmainframe oncreate ctestview onmousemove）与视图（?）cmainframe oncreate

8、：int CMainFrame:OnCreate(LPCREATESTRUCT lpCreateStruct)if (CFrameWnd:OnCreate(lpCreateStruct) = -1)return -1;if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) |!m_wndToolBar.LoadToolBar(IDR_MAINFRAME)TRACE0

9、("Failed to create toolbarn");return -1; / fail to createif (!m_wndStatusBar.Create(this) |!m_wndStatusBar.SetIndicators(indicators, sizeof(indicators)/sizeof(UINT)TRACE0("Failed to create status barn");return -1; / fail to create/ TODO: Delete these three lines if you don't

10、want the toolbar to/ be dockablem_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);EnableDocking(CBRS_ALIGN_ANY);DockControlBar(&m_wndToolBar);return 0;CTestview OnMouseMove：void CTestView:OnMouseMove(UINT nFlags, CPoint point) CString s; s.Format("X=%d, Y=%d",point.x, point.y); / 获得窗口框架的指针 CM

11、ainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd; pFrame->m_wndStatusBar.SetPaneText(1,s); CView:OnMouseMove(nFlags, point);时钟与作图（读程序或补程序）图形加刷子(?)void CTestView:OnSize(UINT nType, int cx, int cy) CView:OnSize(nType, cx, cy);/ TODO: Add your message handler code herevoid CTestView:OnGameSt

12、art() SetTimer(1,100,NULL);void CTestView:OnTimer(UINT nIDEvent) m_Box.left +=dx; m_Box.right+=dx; m_Box.top +=dy; m_Box.bottom+=dy; Invalidate();CView:OnTimer(nIDEvent);void CTestView:OnDraw(CDC* pDC)CTestDoc* pDoc = GetDocument();ASSERT_VALID(pDoc);/ TODO: add draw code for native data herepDC->

13、;Rectangle(&m_Box); /?void CTestView:OnGameStop() KillTimer(1);private:RECT m_Box;int dx,dy;位图（MyBitmaps 某个成员变量(dcimage)的信息）数据库（连接字符串。关闭链接显示数据库）位图：myBitmaps:myBitmaps(char fname,CDC *pDC)this->pDC=pDC;HBITMAP hBitmap=(HBITMAP)LoadImage(NULL,fname,IMAGE_BITMAP,0,0,LR_LOADFROMFILE); CBitmap obj

14、Bitmap; /操作位图的类objBitmap.Attach(hBitmap);objBitmap.GetBitmap(&bm); /读取位图结构（长宽字节） /建立图像设备上下文dcImage.CreateCompatibleDC(pDC); dcImage.SelectObject(&objBitmap); myBitmaps:myBitmaps()DeleteDC(dcImage);void myBitmaps:Draw(CDC *pDC)pDC->BitBlt(100,100, bm.bmWidth,bm.bmHeight,&dcImage, 0, 0,

15、SRCCOPY); class myBitmaps CDC dcImage;BITMAP bm;CDC *pDC;public:void Draw(CDC *pDC);myBitmaps(char fname,CDC *pDC);virtual myBitmaps();数据库：void CTestView:OnDbconnect() /!:CoInitialize(NULL); / 初始化COM环境m_Cn.CreateInstance("ADODB.Connection");m_Cn->Open("Provider=Microsoft.Jet.OLEDB.

16、4.0;Data Source=canyin.mdb","","",adModeUnknown);void CTestView:OnDbdisconnct() /!m_Cn->Close(); void CTestView:OnDbdisplay() /!_RecordsetPtr m_pRecordset;m_pRecordset.CreateInstance("ADODB.Recordset");/m_pRecordset->Open("cai",m_Cn.GetInterfacePtr(

17、), adOpenDynamic,adLockOptimistic, adCmdTable);CString scmd="Select * from cai where Price>20"m_pRecordset->Open(_variant_t)scmd, m_Cn.GetInterfacePtr(), adOpenDynamic,adLockOptimistic, adCmdText);while(!m_pRecordset->adoEOF)/?/查询当前记录的各种字段的值/!int ID = (int)m_pRecordset->GetColl

18、ect("ID").lVal; /?CString Name =(LPCTSTR)(_bstr_t)m_pRecordset->GetCollect("Name"); /?float Price = m_pRecordset->GetCollect("Price").fltVal; /?m_ID=ID; m_Name=Name; /?UpdateData();/!m_pRecordset->MoveNext(); /当前记录后移/?void CTestView:OnDbchange() CString Sql;/Sq

19、l="Update cai set Price=Price+1 where ID=2"/Sql="Delete from cai where ID=2"Sql="Insert into cai(ID,Name,Price) Values(11,'ccc',90)"/!m_Cn->Execute(_bstr_t)Sql,NULL,adCmdText);一档多视(A1,A2)（CFormView CListView）void CA2View:OnUpdate(CView* pSender, LPARAM lHint,

20、 CObject* pHint) m_List1.ResetContent();CA2Doc* pDoc = (CA2Doc*)GetDocument();for(int i=0; i<pDoc->GetCount(); i+) CPoint *p=pDoc->GetPoint(i);！ CString s; s.Format("%d,%d",p->x,p->y); ！ m_List1.AddString(s);类的序列化串行化wqline/!五个地方填空/支持串行化，需要使用宏定义class wqLine :public CObject /!

21、DECLARE_SERIAL(wqLine) /!POINT sp,ep;public:wqLine();wqLine(POINT sp,POINT ep);virtual wqLine();void Draw(CDC *pDC);virtual void Serialize(CArchive& ar); /!;CTestDoc serializationvoid CTestDoc:Serialize(CArchive& ar)if (ar.IsStoring()if(pLine!=NULL)pLine->Serialize(ar);elsepLine=new wqLin

22、e();pLine->Serialize(ar);public:wqLine * pLine;virtual CTestDoc();控件：CListCtrl CTreeView（树形控件给层次结构写代码） void CTestDlg:OnButton1() HTREEITEM root=m_Tree.InsertItem("Parent",TVI_ROOT,TVI_LAST) ;m_Tree.InsertItem("son1",root,TVI_LAST) ;HTREEITEM son2=m_Tree.InsertItem("son2&q

23、uot;,root,TVI_LAST) ;m_Tree.InsertItem("son3",root,TVI_LAST) ;m_Tree.InsertItem("sonson1",son2,TVI_LAST) ;m_Tree.InsertItem("sonson2",son2,TVI_LAST) ;m_Tree.InsertItem("sonson3",son2,TVI_LAST) ;m_Tree.Expand(root,TVE_EXPAND);m_Tree.Expand(son2,TVE_EXPAND);void

24、 CTestDlg:OnSelchangedTree1(NMHDR* pNMHDR, LRESULT* pResult) NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;HTREEITEM p=m_Tree.GetSelectedItem();HTREEITEM parent=m_Tree.GetParentItem(p); CString ptext = m_Tree.GetItemText(p); CString parenttext = m_Tree.GetItemText(parent); AfxMessageBox(ptext + &q

25、uot;n" + parenttext);*pResult = 0;3 基本编程能力显示对话框（考）列表框、组合框的操作（2选1）列表框：void CTestDlg:OnButtonappend() static int n=0;n+;CString s;s.Format("aaaaa %d", n) ;m_lstName.AddString (s);void CTestDlg:OnSelchangeListname() int index=m_lstName.GetCurSel() ;CString s;s.Format("index=%d"

26、, index) ; CString name;m_lstName.GetText(index, name); m_Name=s+": "+name;UpdateData(FALSE);组合框(droplist)：void CTestDialog:OnButtonFill() CString ss7="星期一","星期二","星期三", "星期四","星期五","星期六","星期日" m_Combo1.ResetContent(); f

27、or(int i=0; i<7; i+) m_Combo1.AddString(ssi); m_Combo1.SetCurSel(0); / 必要 for( i=0; i<7; i+) m_Combo3.AddString(ssi);void CTestDialog:OnButtonClear() int n=m_Combo1.GetCount(); for(int i=n-1; i>=0; i-) m_Combo1.DeleteString(i); m_Combo1.SetCurSel(-1);void CTestDialog:OnSelchangeCombo1() int

28、 index=m_Combo1.GetCurSel(); CString s; m_Combo1.GetLBText(index, s); AfxMessageBox(s);void CTestDialog:OnEditchangeCombo3() CString s;m_Combo3.GetWindowText(s);m_Combo3.AddString(s);void CTestDialog:OnButtonFill() CString ss7="星期一","星期二","星期三","星期四", "星期

29、五","星期六","星期日" for(int i=0; i<7; i+) m_Combo1.AddString(ssi); m_Combo1.SetCurSel(0); void CTestDialog:OnButtonAppend() CString s; m_Combo1.GetWindowText(s); if(m_Combo1.FindString(0,s)=CB_ERR) m_Combo1.AddString(s); 绘图程序（考）4 基本实践能力（试图条理清晰） 本学期你一定编写了一些窗口程序，或者经历了一些窗口程序的开发过程。请写出其中你认为最精彩的程序的设计方案。设计方案应包括：程序的流程，类的组成，类中的核心数据成员，核心函数。贪吃蛇游戏程序流程：在菜单栏点击按钮“游戏”，选择“开始”，出现游戏页面（矩形的游戏边界、方块体圆头的贪吃蛇和方形食物），点击方向按钮启动游戏蛇开始运动，四个方向键控制蛇的方向。当蛇头接触食物时食物消失，弹出“胜利”对话