Migrating From VC++2008 to VC++ 2012 Subclassing CFileDialog is not happening

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C++

Hi All,

I am migrating VS2008 to VS2012 in VC++. I having a subclassing of CFileDialog (Custom FileDialog).

When i invoke CFileDialog the custom file dialog must show Edit Contol in CFileDialog. But
when i am acessing the Edit Control Pointer in Custom CFile Dialog i am getting NULL Handle
for Edit Control.

My Code.
--------

CFileDialogEX.h File
--------------------

class CFileDialogEX : public CFileDialog
{
	DECLARE_DYNAMIC(CFileDialogEX)

public:
	CFileDialogEX(BOOL bOpenFileDialog, // TRUE for FileOpen, FALSE for FileSaveAs
		LPCTSTR lpszDefExt = NULL,
		LPCTSTR lpszFileName = NULL,
		DWORD dwFlags = OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,
		LPCTSTR lpszFilter = NULL,
		CWnd* pParentWnd = NULL);
protected:
	//{{AFX_MSG(CFileDialogEX)
	virtual BOOL OnInitDialog();
	afx_msg BOOL OnHelpInfo(HELPINFO* pHelpInfo);
	//}}AFX_MSG

	DECLARE_MESSAGE_MAP()
	virtual void OnFileNameChange();
	virtual void OnFolderChange();
	virtual BOOL OnFileNameOK(); 
}; 

CFileDialogEX.cpp File
----------------------

//Code is getting Assert when calling the EditControl in my Custom File Dialog.

void CFileDialogEX ::l_SetDescription(bool flag)
{
     CRichEditCtrl *ptr = (CRichEditCtrl *)GetDlgItem(IDC_RICHEDIT_DESCRIPTION); //--> Getting      NULL Pointer Here and Application Crash.... in VS2012.
}

Also I observed OnInitDialog is not Called when Invoking the Custom File Dialog.

Please suggest what to do.

Thanks,
Uday.