MFC Dialog Modal

부모 Dialog 에서

자식 Dialog를 Domodal로 부른 뒤

  void CMyDialog::OnMenuShowSimpleModal()
{
   CSimpleDlg myDlg;
   INT_PTR nRet = myDlg.DoModal();

   if (nRet == IDOK || nRet == 5)
      AfxMessageBox(_T("Dialog closed successfully"));
}

자식 Dialog가 종료 될때

  void CSimpleDlg::OnRButtonUp(UINT nFlags, CPoint point)
{
   UNREFERENCED_PARAMETER(nFlags);
   // Do something

   int nRet = point.x; // Just any value would do!
   EndDialog(nRet); // This value is returned by DoModal!

   // Do something

   return; // Dialog closed and DoModal returns only here!
}