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Access Violation from dialog based app in AFX_DATA_INIT

This plain and simple (that was the original goal) dialog based application is suddently issuing an access violation when a CString is being initialized, in this code:

///////////////////////////////////////////////////////////
// CMyDlg dialog

CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
      : CDialog(CMyDlg::IDD, pParent)
{
      //{{AFX_DATA_INIT(CDpKeyDlg)
      m_myText = _T("");
      //}}AFX_DATA_INIT
      // Note that LoadIcon does not require a subsequent DestroyIcon in Win32
      m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

It stops at CString::AllocBeforeWrite(int nLen) in Strcore.cpp. I also noticed that it does not call DoDataExchange(CDataExchange* pDX) or OnInitDialog() before it enters the above code and CString initialization.

The worst is that the application was working before this came up. No major change was made, except for adding edit boxes and the variables from ClassWizard itself.

Have you any ideas of what could be happening?

RJV
0
RJV
Asked:
RJV
1 Solution
 
Tommy HuiEngineerCommented:
It sounds like your program may have corrupted memory before instantiating the dialog and the symptom you see is the string class failing. I would look into making sure you're not corrupting memory. Some things to check are arrays and pointers access and usage.
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RJVAuthor Commented:
thui,

Seeing as you did identify the problem, here are the points.

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