Difference between CDialog and CDialogEx

visual-c++ mfc compare cdialog
Andrey Zakcharenko picture Andrey Zakcharenko · Apr 3, 2014 · Viewed 9.9k times · Source

What is the difference between CDialog and CDialogEx? I decided to use CDialog because I can't assign m_pMainWnd to Dlg if Dlg is derived from CDialogEx.

BOOL CPreparationApp::InitInstance()
{
    MyClass2 Dlg; //derived from CDialog 
    m_pMainWnd = &Dlg;
    Dlg.DoModal();
    return TRUE;
}

What kind of problems I might fave by not using CDialogEx like form wizard was offering?

How to assign m_pMainWnd variable derived from CDialogEx?

Answer

rrirower picture rrirower · Apr 3, 2014

CDialogEX is derived from CDialog, so, setting m_pMainWnd to a CDialogEx derived object should not be a problem. CDialogEx provides the abillity to set the background color or image of the dialog.

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