从模态 MFC 表单中获取输入信息

I have created form CPreparationDlg that has Edit Control. Then I have created application that creates modal form and afer pressing OK on it I need to read entered text in Edit Control into variable of main program. What is the best way to do it?

class CPreparationApp : public CWinApp
{
public:
        BOOL InitInstance();
};


class CPreparationDlg : public  CDialog
{
public:
    enum { IDD = IDD_PREPARATION_DLG };

    CPreparationDlg();
    ~CPreparationDlg();
};


CPreparationDlg::CPreparationDlg()
   : CDialog(CPreparationDlg::IDD)
{
}

CPreparationDlg::~CPreparationDlg()
{
}



BOOL CPreparationApp::InitInstance()
{
    //CPreparationDlg Dlg;
    m_pMainWnd = &Dlg;
    Dlg.DoModal();
  // there I would like to read text info




    return TRUE;


}

CPreparationApp theApp;

推荐答案

你所问问题的答案:

您无法从对话框类外部读取或写入对话框上的编辑控件.在调用 DoModal 之前或从 DoModal 返回之后，与 MFC 控件关联的窗口不存在.