testDlg.cpp
上传用户:weisheen
上传日期:2022-07-09
资源大小:19390k
文件大小:5k
- // testDlg.cpp : implementation file
- //
- #include "stdafx.h"
- #include "test.h"
- #include "testDlg.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()
- /////////////////////////////////////////////////////////////////////////////
- // CTestDlg dialog
- CTestDlg::CTestDlg(CWnd* pParent /*=NULL*/)
- : CDialog(CTestDlg::IDD, pParent)
- {
- //{{AFX_DATA_INIT(CTestDlg)
- // 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 CTestDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialog::DoDataExchange(pDX);
- //{{AFX_DATA_MAP(CTestDlg)
- // NOTE: the ClassWizard will add DDX and DDV calls here
- //}}AFX_DATA_MAP
- }
- BEGIN_MESSAGE_MAP(CTestDlg, CDialog)
- //{{AFX_MSG_MAP(CTestDlg)
- ON_WM_SYSCOMMAND()
- ON_WM_PAINT()
- ON_WM_QUERYDRAGICON()
- ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
- ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
- ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CTestDlg message handlers
- BOOL CTestDlg::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 CTestDlg::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 CTestDlg::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 CTestDlg::OnQueryDragIcon()
- {
- return (HCURSOR) m_hIcon;
- }
- #include "../DemoVariant.h"
- #include "../DemoVariant_i.c"
- #include <atlbase.h>
- #include <comdef.h>
- void CTestDlg::OnButton1()
- {
- // TODO: Add your control notification handler code here
- CoInitialize(NULL);
- CComPtr<IMyVariant> mytools;
- mytools.CoCreateInstance(CLSID_MyVariant);//生成构件
- VARIANT A,B;
- A.vt=VT_I4;
- A.lVal=12;
- B.vt=VT_I4;
- B.lVal=13;
- VARIANT c;
- mytools->add(A,B,&c);
- CString str;
- str.Format("没有强制类型转换:%d",c.lVal);
- MessageBox(str);
- }
- void CTestDlg::OnButton2()
- {
- // TODO: Add your control notification handler code here
- CoInitialize(NULL);
- CComPtr<IMyVariant> mytools;
- mytools.CoCreateInstance(CLSID_MyVariant);
- long a=12;
- long b=13;
- _variant_t vt(a);
- _variant_t vt1(b);
- _variant_t result;
- mytools->add(vt,vt1,&result);
- long c1=(long)result;//强制类型转换使智能指针具体化
- CString str;
- str.Format("强制类型转换后:%d",c1);
- MessageBox(str);
- }
- void CTestDlg::OnButton3()
- {
- // TODO: Add your control notification handler code here
- CoInitialize(NULL);
- CComPtr<IMyVariant> mytools;
- //CComQIPtr<IMyVariant> mytools;
- mytools.CoCreateInstance(CLSID_MyVariant);
- long a=12;
- long b=13;
- CComVariant vt(a);//CComVariant的方法比_variant_t的多
- CComVariant vt1(b);
- CComVariant result;
- mytools->add(vt,vt1,&result);
- CString str;
- str.Format("用CComVariant来定义后:%d",result.lVal);
- MessageBox(str);
- }