CDialog类

CDialog类是MFC对话框基类

对话框有两类：模态对话框和非模态对话框。模态对话框在应用继续进行之前必须关闭，非模态则不需要

 

CDialog重载了三个构造函数

 

CDialog();//缺省构造函数

CDialog(UINT nlDTemplate,CWnd*pParentWnd=NULL);//从指定的对话模板资源ID创建

CDialog(LPCTSTR lpszTemplateName,CWnd*pParentWnd=NULL);//从指定的对话框模板资源名称创建

 

成员方法：

 

消息响应函数：

 

 

 

 CDialogEx是CDialog的扩展类，具备基类全部功能，并根据新系统需要增加了一些界面美化功能，例如修改对话框背景颜色，标题栏颜色等。

 

成员方法：

 

class CDialog : public CWnd
{
    DECLARE_DYNAMIC(CDialog)

    // Modeless construct
public:
    CDialog();
    void Initialize();

    virtual BOOL Create(LPCTSTR lpszTemplateName, CWnd* pParentWnd = NULL);
    virtual BOOL Create(UINT nIDTemplate, CWnd* pParentWnd = NULL);
    virtual BOOL CreateIndirect(LPCDLGTEMPLATE lpDialogTemplate, CWnd* pParentWnd = NULL,
        void* lpDialogInit = NULL);
    virtual BOOL CreateIndirect(HGLOBAL hDialogTemplate, CWnd* pParentWnd = NULL);

    // Modal construct
public:
    explicit CDialog(LPCTSTR lpszTemplateName, CWnd* pParentWnd = NULL);
    explicit CDialog(UINT nIDTemplate, CWnd* pParentWnd = NULL);
    BOOL InitModalIndirect(LPCDLGTEMPLATE lpDialogTemplate, CWnd* pParentWnd = NULL,
        void* lpDialogInit = NULL);
    BOOL InitModalIndirect(HGLOBAL hDialogTemplate, CWnd* pParentWnd = NULL);

// Attributes
public:
    void MapDialogRect(LPRECT lpRect) const;
    void SetHelpID(UINT nIDR);

// Operations
public:
    // modal processing
    virtual INT_PTR DoModal();

    // support for passing on tab control - use 'PostMessage' if needed
    void NextDlgCtrl() const;
    void PrevDlgCtrl() const;
    void GotoDlgCtrl(CWnd* pWndCtrl);

    // default button access
    void SetDefID(UINT nID);
    DWORD GetDefID() const;

    // termination
    void EndDialog(int nResult);

// Overridables (special message map entries)
    virtual BOOL OnInitDialog();
    virtual void OnSetFont(CFont* pFont);
protected:
    virtual void OnOK();
    virtual void OnCancel();

// Implementation
public:
    virtual ~CDialog();
#ifdef _DEBUG
    virtual void AssertValid() const;
    virtual void Dump(CDumpContext& dc) const;
#endif
    virtual BOOL PreTranslateMessage(MSG* pMsg);
    virtual BOOL OnCmdMsg(UINT nID, int nCode, void* pExtra,
        AFX_CMDHANDLERINFO* pHandlerInfo);
    virtual BOOL CheckAutoCenter();

protected:
    UINT m_nIDHelp;                 // Help ID (0 for none, see HID_BASE_RESOURCE)

    // parameters for 'DoModal'
    LPCTSTR m_lpszTemplateName;     // name or MAKEINTRESOURCE
    HGLOBAL m_hDialogTemplate;      // indirect (m_lpDialogTemplate == NULL)
    LPCDLGTEMPLATE m_lpDialogTemplate;  // indirect if (m_lpszTemplateName == NULL)
    void* m_lpDialogInit;           // DLGINIT resource data
    CWnd* m_pParentWnd;             // parent/owner window
    HWND m_hWndTop;                 // top level parent window (may be disabled)
    BOOL m_bClosedByEndDialog;        // indicates that the dialog was closed by calling EndDialog method

    _AFX_OCC_DIALOG_INFO* m_pOccDialogInfo;
    virtual BOOL SetOccDialogInfo(_AFX_OCC_DIALOG_INFO* pOccDialogInfo);
    virtual _AFX_OCC_DIALOG_INFO* GetOccDialogInfo();
    virtual void PreInitDialog();

    // implementation helpers
    HWND PreModal();
    void PostModal();

    BOOL CreateIndirect(LPCDLGTEMPLATE lpDialogTemplate, CWnd* pParentWnd,
        void* lpDialogInit, HINSTANCE hInst);
    BOOL CreateIndirect(HGLOBAL hDialogTemplate, CWnd* pParentWnd,
        HINSTANCE hInst);

protected:
    afx_msg LRESULT OnCommandHelp(WPARAM wParam, LPARAM lParam);
    afx_msg LRESULT OnHelpHitTest(WPARAM wParam, LPARAM lParam);
    afx_msg LRESULT HandleInitDialog(WPARAM, LPARAM);
    afx_msg void OnSetFont(CFont* pFont, BOOL bRedraw);
    afx_msg void OnPaint();
    afx_msg BOOL OnQueryEndSession();
    afx_msg void OnEndSession(BOOL bEnding);

    DECLARE_MESSAGE_MAP()
};

 

 

BEGIN_MESSAGE_MAP(CDialog, CWnd)
    ON_COMMAND(IDOK, &CDialog::OnOK)
    ON_COMMAND(IDCANCEL, &CDialog::OnCancel)
    ON_MESSAGE(WM_COMMANDHELP, &CDialog::OnCommandHelp)
    ON_MESSAGE(WM_HELPHITTEST, &CDialog::OnHelpHitTest)
    ON_MESSAGE(WM_INITDIALOG, &CDialog::HandleInitDialog)
    ON_WM_SETFONT()
    ON_WM_PAINT()
    ON_WM_QUERYENDSESSION()
    ON_WM_ENDSESSION()
END_MESSAGE_MAP()