Keep a thread running in a modal dialog c++ mfc

Question

So I open a modal dialog from my main dialog through DoModal() Where should i put my thread function to keep it alive, can i put it in a constructor?. (The created dialog doesnt have any function like OnInitDialog() in my main dialog)

Answer 1

You can use AfxBeginThread to start thread https://docs.microsoft.com/en-us/cpp/mfc/reference/cwinthread-class?view=vs-2019 and put it in oninitdialog like

BOOL CSimpleDlg::OnInitDialog()
{
  CDialog::OnInitDialog();

  // TODO: Add extra initialization here, like AfxBeginThread 
  m_cMyEdit.SetWindowText(_T("My Name")); // Initialize control values
  m_cMyList.ShowWindow(SW_HIDE);          // Show or hide a control, etc.

  return TRUE; // return TRUE unless you set the focus to a control
  // EXCEPTION: OCX Property Pages should return FALSE
}

https://docs.microsoft.com/en-us/cpp/mfc/reference/cdialog-class?view=vs-2019#oninitdialog