Ex6_1Dlg.rar_visual c

// Ex6_1Dlg.cpp : implementation file #include "math.h" #include "stdafx.h" #include "Ex6_1.h" #include "Ex6_1Dlg.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() ///////////////////////////////////////////////////////////////////////////// // CEx6_1Dlg dialog CEx6_1Dlg::CEx6_1Dlg(CWnd* pParent /*=NULL*/) : CDialog(CEx6_1Dlg::IDD, pParent) { //{{AFX_DATA_INIT(CEx6_1Dlg) m_a = 0; m_b = 0; m_c = 0; m_x1 = _T(""); m_x2 = _T(""); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CEx6_1Dlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CEx6_1Dlg) DDX_Text(pDX, IDC_A_EDIT2, m_a); DDX_Text(pDX, IDC_B_EDIT3, m_b); DDX_Text(pDX, IDC_C_EDIT4, m_c); DDX_Text(pDX, IDC_x1_EDIT11, m_x1); DDX_Text(pDX, IDC_x2_EDIT12, m_x2); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CEx6_1Dlg, CDialog) //{{AFX_MSG_MAP(CEx6_1Dlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BUTTON1, OnButton1) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CEx6_1Dlg message handlers BOOL CEx6_1Dlg::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 CEx6_1Dlg::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 CEx6_1Dlg::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 CEx6_1Dlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CEx6_1Dlg::OnButton1() { // TODO: Add your control notification handler code here UpdateData(); double dis; dis=(double)(m_b*m_b-4*m_a*m_c); if((fabs(dis)<=(1e-6))) {double x1,x2; x1=-m_b/(2*m_a); x2=-m_b/(2*m_a); m_x1.Format("%f",x1); m_x2.Format("%f",x2); } else if(dis>(1e-6)) {double x1,x2; x1=(-m_b+sqrt(dis))/(2*m_a); x2=(-m_b-sqrt(dis))/(2*m_a); m_x1.Format("%f",x1); m_x2.Format("%f",x2); } else {m_x1.Format("无解"); m_x2.Format("无解"); } UpdateData(FALSE); }