VC++深入详解笔记.cpp

//添加按钮方法，可以在CMainFrame，CTWinTest02View中添加
//先添加CButton m_btn变量，
//在oncreate 中添加 m_btn.Create(_T("My button"), WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,    CRect(10,10,100,30), this, 1);
//CTWinTest02View  要在消息映射中WM_Create中添加
int Ctest1View::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CView::OnCreate(lpCreateStruct) == -1)
        return -1;

    // TODO:  在此添加您专用的创建代码
    m_btn.Create(_T("My button"), WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON, 
   CRect(10,10,100,30), this, 1);

    return 0;
}
//画直线  在view中添加消息映射
BEGIN_MESSAGE_MAP(Ctest1View, CView)
    // 标准打印命令
    ON_COMMAND(ID_FILE_PRINT, &CView::OnFilePrint)
    ON_COMMAND(ID_FILE_PRINT_DIRECT, &CView::OnFilePrint)
    ON_COMMAND(ID_FILE_PRINT_PREVIEW, &CView::OnFilePrintPreview)
    ON_WM_LBUTTONDOWN()
    ON_WM_LBUTTONUP()
    ON_WM_CREATE()
END_MESSAGE_MAP()

//SDK全局函数画线
void Ctest1View::OnLButtonUp(UINT nFlags, CPoint point)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
        // 首先获得窗口的设备描述表
    HDC hdc;
    hdc = ::GetDC(m_hWnd);
    //移动到线条的起点
    MoveToEx(hdc, m_ptOrigin.x, m_ptOrigin.y, NULL);
    //画线
    LineTo(hdc, point.x, point.y);
    //释放设备描述表
    ::ReleaseDC(m_hWnd,hdc);
    CView::OnLButtonUp(nFlags, point);
}

int Ctest1View::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CView::OnCreate(lpCreateStruct) == -1)
        return -1;

    // TODO:  在此添加您专用的创建代码
    m_btn.Create(_T("My button"), WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON, 
   CRect(10,10,100,30), this, 1);

    return 0;
}
//CDC类
    CDC* pDC = GetDC();
    pDC->MoveTo(m_ptOrigin);
    pDC->LineTo(point);
    ReleaseDC(pDC);
    
    //画曲线
    CDC* pDC = GetDC();
    pDC->MoveTo(m_ptOrigin);
    //pDC->LineTo(point);
    POINT   p[4]   =   {   
                                     (POINT)m_ptOrigin,   
                                     {500,20},   
                                     {500,500},   
                                     (POINT)point
                                  };   
  
    pDC->PolyBezier(p,4);
    ReleaseDC(pDC);
    
    //CClientDC类
    //    CClientDC dc(GetParent());//在父窗口
    CClientDC dc(this);
    //CWindowDC dc(GetDesktopWindow()); //在桌面
//    CWindowDC dc(GetParent());
    CPen pen(PS_DOT,1,RGB(255,0,0));//变色
    CPen* pOldPen = dc.SelectObject(&pen);
    dc.MoveTo(m_ptOrigin);
    dc.LineTo(point);
    dc.SelectObject(pOldPen);
    
    /**//*    //创建一个红色画刷
    CBrush brush(RGB(255,0,0));
    //创建并获得设备描述表
    CClientDC dc(this);
    //利用红色画刷填充鼠标拖曳过程中形成的矩形区域
    dc.FillRect(CRect(m_ptOrigin,point),&brush);
*/

/**//*    //创建位图对象
    CBitmap bitmap;
    //加载位图资源
    bitmap.LoadBitmap(IDB_BITMAP1);
    //创建位图画刷
    CBrush brush(&bitmap);
    //创建并获得设备描述表
    CClientDC dc(this);
    //利用红色画刷填充鼠标拖曳过程中形成的矩形区域
    dc.FillRect(CRect(m_ptOrigin,point),&brush);
*/
    //创建并获得设备描述表
/**//*    CClientDC dc(this);
    //创建一个空画刷
    CBrush *pBrush = CBrush::FromHandle((HBRUSH)GetStockObject(NULL_BRUSH));
    //将空画刷选入设备描述表
    CBrush *pOldBrush = dc.SelectObject(pBrush);
    //绘制一个矩形
    dc.Rectangle(CRect(m_ptOrigin,point));
    //恢复先前的画刷
    dc.SelectObject(pOldBrush);
*/

CDC::SetROP2(R2_BLACK)
    
    //生成提示符
    int CTextView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
    if (CView::OnCreate(lpCreateStruct) == -1)
        return -1;
    
/**//*    //创建设备描述表
    CClientDC dc(this);
    //定义文本信息结构体变量
    TEXTMETRIC tm;
    //获得设备描述表中的文本信息
    dc.GetTextMetrics(&tm);
    //根据字体大小，创建合适的插入符
    CreateSolidCaret(tm.tmAveCharWidth/8, tm.tmHeight);
    //显示插入符
    ShowCaret();
*/
    bitmap.LoadBitmap(IDB_BITMAP1);
    CreateCaret(&bitmap);
    ShowCaret();
    
    //重绘，
    void CTextView::OnDraw(CDC* pDC)
{
    CTextDoc* pDoc = GetDocument();
    ASSERT_VALID(pDoc);
    // TODO: add draw code for native data here
    //CString str("VC++　深入编程");
    CString str;
    str = "VC++　深入编程";
    pDC->TextOut(50,50,str);

    CSize sz = pDC->GetTextExtent(str);

    str.LoadString(IDS_STRINGVC);//取资源
    pDC->TextOut(0,200,str);

    pDC->BeginPath();
    pDC->Rectangle(50,50,50+sz.cx,50+sz.cy);
    pDC->EndPath();
    pDC->SelectClipPath(RGN_AND);

    for(int i=0; i<300; i+=10)
    {
        pDC->MoveTo(0,i);
        pDC->LineTo(300,i);
        pDC->MoveTo(i,0);
        pDC->LineTo(i,300);
    }
}

//.省略了一部份178

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    ..
    // TODO: 如果不需要可停靠工具栏，则删除这三行
    m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
    EnableDocking(CBRS_ALIGN_ANY);
    DockControlBar(&m_wndToolBar);
    
CMenu menu;
    menu.CreateMenu();
//    GetMenu()->AppendMenu(MF_POPUP,(UINT)menu.m_hMenu,"Test");
    GetMenu()->InsertMenu(2,MF_POPUP | MF_BYPOSITION,(UINT)menu.m_hMenu,_T("Test"));
    menu.AppendMenu(MF_STRING,ID_TEST,_T("Hello"));
    menu.AppendMenu(MF_STRING,112,_T("Bye"));
    menu.AppendMenu(MF_STRING,113,_T("Mybole"));

    GetMenu()->GetSubMenu(0)->AppendMenu(MF_STRING,114,_T("Welcome"));
    GetMenu()->GetSubMenu(0)->InsertMenu(ID_FILE_OPEN,MF_BYCOMMAND | MF_STRING,115,_T("VC编程"));
    menu.Detach();
    
    GetMenu()->DeleteMenu(1,MF_BYPOSITION);
    GetMenu()->GetSubMenu(0)->DeleteMenu(2,MF_BYPOSITION);
    GetMenu()->GetSubMenu(0)->CheckMenuItem(ID_FILE_NEW,MF_BYCOMMAND | MF_CHECKED);//添加复选区
    
    GetMenu()->GetSubMenu(0)->SetDefaultItem(0,true);//设置默认菜单项
    
    
//.省略了一部份239  对话框
void Ctest1View::OnTest()
{
    //CTestDlg dlg;
    //dlg.DoModal();

    CTestDlg *pDlg=new CTestDlg;
    pDlg->Create(IDD_DIALOG1,this);
    pDlg->ShowWindow(SW_SHOW);   //需要释放资源 1.*pDlg为成员变量   2.重载PostNcDestory delete this;CDialog::PostNcDestory();
}

    //动态创建按钮
 
    if(m_bIsCreated == FALSE)//m_bIsCreated 为成员变量
    {
        m_btn.Create("New",BS_DEFPUSHBUTTON | WS_VISIBLE | WS_CHILD,
                CRect(0,0,100,100),this,123);
        m_bIsCreated = TRUE;
    }
    else
    {
        m_btn.DestroyWindow();
        m_bIsCreated = FALSE;
    }
    ------------------------------------
    if(!m_btn.m_hWnd)//窗口句柄
    {
        m_btn.Create("New",BS_DEFPUSHBUTTON | WS_VISIBLE | WS_CHILD,
                CRect(0,0,100,100),this,123);
    }
    else
    {
        m_btn.DestroyWindow();
    }

//静态文本  Notify  true
void CTestDlg::OnNumber1() 
{
    // TODO: Add your control notification handler code here
    CString str;
    if(GetDlgItem(IDC_NUMBER1)->GetWindowText(str), str == "Number1:")
    {
        GetDlgItem(IDC_NUMBER1)->SetWindowText("数值1:");
    }
    else
    {
        GetDlgItem(IDC_NUMBER1)->SetWindowText("Number1:");
    }
}
//按钮动作
方法1
int num1, num2, num3;
    char ch1[10], ch2[10], ch3[10];

    GetDlgItem(IDC_EDIT1)->GetWindowText(ch1,10);
    GetDlgItem(IDC_EDIT2)->GetWindowText(ch2,10);

    num1 = atoi(ch1);
    num2 = atoi(ch2);
    num3 = num1 + num2;

    itoa(num3,ch3,10);
    GetDlgItem(IDC_EDIT3)->SetWindowText(ch3);
方法2    
    int num1, num2, num3;
    char ch1[10], ch2[10], ch3[10];

    GetDlgItemText(IDC_EDIT1,ch1,10);
    GetDlgItemText(IDC_EDIT2,ch2,10);

    num1 = atoi(ch1);
    num2 = atoi(ch2);
    num3 = num1 + num2;

    itoa(num3,ch3,10);
    SetDlgItemText(IDC_EDIT3,ch3);
    方法3好
    int num1, num2, num3;
    num1 = GetDlgItemInt(IDC_EDIT1);
    num2 = GetDlgItemInt(IDC_EDIT2);
    num3 = num1 + num2;
    SetDlgItemInt(IDC_EDIT3,num3);
    方法4好
    添加成员变量int
    UpdateData();
    m_num3 = m_num1 + m_num2;
    UpdateData(false);
    添加范围
    DDV_MinMaxInt(pDX, m_num1, 0, 100);
    DDV_MinMaxInt(pDX, m_num2, 0, 100);
    DDV_MinMaxInt(pDX, m_num3, 0, 200);
    方法5
    添加成员变量control
        int num1, num2, num3;
    char ch1[10], ch2[10], ch3[10];

    m_edit1.GetWindowText(ch1,10);
    m_edit2.GetWindowText(ch2,10);

    num1 = atoi(ch1);
    num2 = atoi(ch2);
    num3 = num1 + num2;

    itoa(num3,ch3,10);
    m_edit3.SetWindowText(ch3);
    方法6 
    利用SDK 消息机制
    int num1, num2, num3;
    char ch1[10], ch2[10], ch3[10];

    ::SendMessage(GetDlgItem(IDC_EDIT1)->m_hWnd, WM_GETTEXT, 10,(LPARAM)ch1);
    ::SendMessage(m_edit2.m_hWnd, WM_GETTEXT, 10,(LPARAM)ch2);

    num1 = atoi(ch1);
    num2 = atoi(ch2);
    num3 = num1 + num2;

    itoa(num3,ch3,10);
    m_edit3.SendMessage(WM_SETTEXT, 0, (LPARAM)ch3);    
    方法7
    利用SDK 消息机制  直接发送给子控件
        int num1, num2, num3;
    char ch1[10], ch2[10], ch3[10];

    SendDlgItemMessage(IDC_EDIT1, WM_GETTEXT, 10,(LPARAM)ch1);
    SendDlgItemMessage(IDC_EDIT2, WM_GETTEXT, 10,(LPARAM)ch2);

    num1 = atoi(ch1);
    num2 = atoi(ch2);
    num3 = num1 + num2;

    itoa(num3,ch3,10);
    SendDlgItemMessage(IDC_EDIT3, WM_SETTEXT, 0, (LPARAM)ch3);
    SendDlgItemMessage(IDC_EDIT3, EM_SETSEL,1,3);//设置选中 EM_GETSEL取到选中
    m_edit3.SetFocus();                                                    //EM开头的消息是指编辑框中的消息
    
    添加分隔窗体  添加一个图片控件 IDC_SEPARATOR  一个按钮 IDC_BUTTON1
    CString str;
    if(GetDlgItemText(IDC_BUTTON1, str), str == "收缩<<")
    {
        SetDlgItemText(IDC_BUTTON1,_T("扩展>>"));
    }
    else
    {
        SetDlgItemText(IDC_BUTTON1,_T("收缩<<"));
    }

        static CRect rectLarge;
    static CRect rectSmall;
    
    if(rectLarge.IsRectNull())
    {
        CRect rectSeparator;
        GetWindowRect(&rectLarge);
        GetDlgItem(IDC_SEPARATOR)->GetWindowRect(&rectSeparator);

        rectSmall.left=rectLarge.left;
        rectSmall.top=rectLarge.top;
        rectSmall.right=rectLarge.right;
        rectSmall.bottom=rectSeparator.bottom;
    }
    if(str=="收缩<<")
    {
        SetWindowPos(NULL,0,0,rectSmall.Width(),rectSmall.Height(),
            SWP_NOMOVE | SWP_NOZORDER);
    }
    else
    {
        SetWindowPos(NULL,0,0,rectLarge.Width(),rectLarge.Height(),
            SWP_NOMOVE | SWP_NOZORDER);
    }
    //----------265--------------------------略一部份