窗口編程__小示例（1）

運行之後的界面：

 

 

 

 

 

 

 

 

BOOL CWndExDlg::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 m_List.InsertColumn(0,_T("窗口類名"),LVCFMT_LEFT,100); m_List.InsertColumn(1,_T("窗口標題"),LVCFMT_LEFT,100); return TRUE; // return TRUE unless you set the focus to a control } void CWndExDlg::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 CWndExDlg::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 CWndExDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CWndExDlg::OnBtnMax() { //最大化窗口 SendMessage(WM_SYSCOMMAND,SC_MAXIMIZE,0); } void CWndExDlg::OnBtnMin() { //最小化 SendMessage(WM_COMMAND,SC_MINIMIZE,0); } void CWndExDlg::OnBtnRebuild() { //恢復窗口 SendMessage(WM_SYSCOMMAND,SC_RESTORE,0); } void CWndExDlg::OnBtnSwp() { //設置窗口的大小和位置 SetWindowPos(NULL,0,0,300,300,SWP_NOZORDER); //SWP_NOZORDER 表示當前的層次 } void CWndExDlg::OnBtnMove() { // 設置窗口的大小和位置 MoveWindow(100,200,200,320); } void CWndExDlg::OnBtnCenter() { //居中 CenterWindow(); } void CWndExDlg::OnBtnTopshow() { SetWindowPos(&wndTopMost,0,0,0,0,SWP_NOSIZE|SWP_NOMOVE); /* SWP_NOMOVE 表示窗口保持當前的位置，忽略x,y. SWP_NOSIZE 表示窗口當前保持的大小，忽略,cx,cy */ } void CWndExDlg::OnBtnGet() { CString strText=_T(""); //獲取窗口標題 GetWindowText(strText); SetDlgItemText(IDC_EDIT,strText); } void CWndExDlg::OnBtnSet() { CString strText=_T(""); GetDlgItemText(IDC_EDIT,strText); //設置窗口標題 SetWindowText(strText); } void CWndExDlg::OnBtnMinall() { //獲取任務窗口 CWnd* pWnd=CWnd::FindWindow(_T("Shell_TrayWnd"),NULL); //發送ID爲0X1F5(WIN+M)的WM_HOTKEY Message pWnd->SendMessage(WM_HOTKEY,0X1F5); } void CWndExDlg::OnBtnHid() { //獲取任務欄窗口 CWnd* pWnd=CWnd::FindWindow(_T("Shell_TrayWnd"),NULL); //隱藏窗口 if (pWnd->IsWindowVisible()) { pWnd->ShowWindow(SW_HIDE); } } void CWndExDlg::OnBtnApp() { //獲取任務欄窗口 CWnd* pWnd=CWnd::FindWindow(_T("Shell_TrayWnd"),NULL); //顯示窗口 if (!pWnd->IsWindowVisible()) { pWnd->ShowWindow(SW_SHOW); } } void CWndExDlg::OnBtnOne() { m_List.DeleteAllItems(); m_List.SetRedraw(FALSE); //獲取桌面窗口 CWnd* pDeskTopWnd=CWnd::GetDesktopWindow(); //獲取第一個子窗口 CWnd* pWnd=pDeskTopWnd->GetWindow(GW_CHILD); while(pWnd!=NULL) { int nItem=m_List.GetItemCount(); //獲取窗口類名 CString strClassName=_T(""); ::GetClassName(pWnd->GetSafeHwnd(),strClassName.GetBuffer(256),256); strClassName.ReleaseBuffer(); m_List.InsertItem(nItem,strClassName); //獲取窗口標題 CString strWindowText=_T(""); ::GetWindowText(pWnd->GetSafeHwnd(),strWindowText.GetBuffer(256),256); strWindowText.ReleaseBuffer(); m_List.SetItemText(nItem,1,strWindowText); //繼續下一個 pWnd=pWnd->GetWindow(GW_HWNDNEXT); } m_List.SetRedraw(TRUE); } void CWndExDlg::OnBtnTwo() { //m_List.DeleteAllItems(); // m_List.SetRedraw(FALSE); //枚舉窗口 // ::EnumWndProc(EnumWndProc,(LPARAM)m_List); }  

 

 

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