Hide an MFC dialog window

Question

I have written an MFC dialog based application which is launched by some another application. For now, I have not added any code. It is just the default files that I got. Th

Answer 1

As soon as you call DoModal your dialog is doomed to be shown. There is only one workaround that successfully avoids focus/flicker problems. See my answer here: Hiding an MFC dialog box

Hence, your code should look like this:

BOOL CMyApp::InitInstance() 
{ 
    CMyAppDlg dlg;
    dlg.SetVisible(FALSE); // Sets m_visible flag to FALSE.

    m_pMainWnd = &dlg;         

    INT_PTR nResponse = dlg.DoModal(); 

    if (nResponse == IDOK) 
    { 
    } 
    else if (nResponse == IDCANCEL) 
    {  
    } 

    return FALSE; 
}