MFC 中全局函数如何访问对话框对象的成员

    

    ON_MESSAGE(WM_UPDATE_STATIC, CLibTestDlg::OnUpdateStatic)

extern CLibTestApp theApp;

............

// pDlg->m_info+=strRecvd;
      ((CLibTestDlg*)(theApp.m_pMainWnd))->m_info+=strRecvd;//ok
      ::PostMessage(((CLibTestDlg*)(theApp.m_pMainWnd))->m_hWnd, WM_UPDATE_STATIC, 0, 0);//ok

............

LRESULT CLibTestDlg::OnUpdateStatic(WPARAM wParam, LPARAM lParam)
{
    UpdateData(false);

    GetDlgItem(IDC_EDIT_LONGITUDE)->SetWindowText(g_strLongitude);  //获取发送内容输入   string 类型

((CEdit*)GetDlgItem(IDC_EDIT1))->LineScroll(
        m_info.GetLength() / (((CEdit*)GetDlgItem(IDC_EDIT1))->LineLength()));

 

    return 0;

}