Date: 2010jan18 Language: C/C++ Framework: MFC OS: Windows Q. MFC: Why is my MFC program asserting at line 246 of winocc.cpp ? A. You probably forgot to call:

CDialog::OnInitDialog();

at the start of your class's OnInitDialog() method. It should look like this:

BOOL CMyDlg::OnInitDialog() { CDialog::OnInitDialog(); // ... Do your stuff ... return TRUE; }

Declared in the .h file as:

virtual BOOL OnInitDialog();