关于CDialog 非模态对话框

#pragma once





// CShowItSelsDlg dialog

class CShowItSelsDlg : public CDialog

{

// Construction

public:

	CShowItSelsDlg(CWnd* pParent = NULL);	// standard constructor



// Dialog Data

	enum { IDD = IDD_SHOWITSELS_DIALOG };



	protected:

	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support





// Implementation

protected:

	HICON m_hIcon;



	// Generated message map functions

	virtual BOOL OnInitDialog();

	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);

	afx_msg void OnPaint();

	afx_msg HCURSOR OnQueryDragIcon();

	DECLARE_MESSAGE_MAP()

public:

	CDialog* pSelf;//定义一个指向自身的指针

};

CShowItSelsDlg dlg;//创建父对话框

	m_pMainWnd = &dlg;

	dlg.pSelf = new CShowItSelsDlg();//创建同样的子对话框

	dlg.pSelf->Create(IDD_SHOWITSELS_DIALOG,&dlg);

	INT_PTR nResponse = dlg.DoModal();

BOOL CShowItSelsDlg::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



	//显示对话框

	if (pSelf)

	{

		pSelf->ShowWindow(SW_SHOW);

	}

	return TRUE;  // return TRUE  unless you set the focus to a control

}