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Windows 2000 style File Dialog box

I'm just starting out with MFC and I'm wondering if there is a way to display the Win 2000 style dialog box instead of using the older style.

Here is the code I am using now:

void CSTUploadDoc::OnDataImport()
     TCHAR buffer[] = _T("Dat Files (*.dat)|*.dat|All Files (*.*)|*.*||");
     CFileDialog dlg(TRUE, _T("dat"), _T("*dat"), OFN_FILEMUSTEXIST, buffer);

     if (dlg.DoModal() == IDOK) {
          try {
               CStdioFile f(dlg.GetPathName(),CFile::modeReadWrite);
          catch (CFileException *e) {

Any help would be greatly appreciated.
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1 Solution
To use Win2K style dialog you have to set correct CFileDialog.m_ofn.lStructSize = sizeof(lStructSize)+3*sizeof(DWORD);
before calling DoModal;
I assume that your project doesn`t contain defines such as
_WIN32_WINNT = 0x0500;
boomshankerAuthor Commented:
Thanks for your response.

Could you possibly show me how to implement that with the code I have?

If I use the code you supplied as follows:

dlg.m_ofn.lStructSize = sizeof(lStructSize)+3*sizeof(DWORD);

I get an "lStructSize Undeclared Identifier" error upon compile.

How do I declare lStructSize?  Do I have to set any other data members of the struct?

Thank you in advance for any further help you may offer.
excuse me for this dirty CRACKed code :-)
this method can arise Access Violation  error and ugly bechavior.
Here is true code.
// FileDialogEx.h

#pragma once

// Windows 2000 version of OPENFILENAME.
// The new version has three extra members.
// This is copied from commdlg.h
  void *        pvReserved;
  DWORD         dwReserved;
  DWORD         FlagsEx;

// CFileDialogEx: Encapsulate Windows-2000 style open dialog.
class CFileDialogEx : public CFileDialog {
      CFileDialogEx(BOOL bOpenFileDialog, // TRUE for open,
                                          // FALSE for FileSaveAs
      LPCTSTR lpszDefExt = NULL,
      LPCTSTR lpszFileName = NULL,
      LPCTSTR lpszFilter = NULL,
      CWnd* pParentWnd = NULL);

   // override
   virtual int DoModal();

   OPENFILENAMEEX m_ofnEx; // new Windows 2000 version of OPENFILENAME

   virtual BOOL OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult);

   // virtual fns that handle various notifications
   virtual BOOL OnFileNameOK();
   virtual void OnInitDone();
   virtual void OnFileNameChange();
   virtual void OnFolderChange();
   virtual void OnTypeChange();



#include "stdafx.h"
#include <afxpriv.h>
#include "FileDialogEx.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;

static BOOL IsWin2000();

// CFileDialogEx


CFileDialogEx::CFileDialogEx(BOOL bOpenFileDialog,
   LPCTSTR lpszDefExt,
   LPCTSTR lpszFileName,
   DWORD dwFlags, LPCTSTR lpszFilter, CWnd* pParentWnd) :
   CFileDialog(bOpenFileDialog, lpszDefExt, lpszFileName,
      dwFlags, lpszFilter, pParentWnd)

BEGIN_MESSAGE_MAP(CFileDialogEx, CFileDialog)

BOOL IsWin2000()
   BOOL bOsVersionInfoEx;

   // Try calling GetVersionEx using the OSVERSIONINFOEX structure,
   // which is supported on Windows 2000.
   // If that fails, try using the OSVERSIONINFO structure.

   ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);

   if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi)) )
      // If OSVERSIONINFOEX doesn't work, try OSVERSIONINFO.

      osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
      if (! GetVersionEx ( (OSVERSIONINFO *) &osvi) )
         return FALSE;

   switch (osvi.dwPlatformId)
      case VER_PLATFORM_WIN32_NT:

         if ( osvi.dwMajorVersion >= 5 )
            return TRUE;

   return FALSE;

int CFileDialogEx::DoModal()
   ASSERT(m_ofn.Flags & OFN_ENABLEHOOK);
   ASSERT(m_ofn.lpfnHook != NULL); // can still be a user hook

   // zero out the file buffer for consistent parsing later
   ASSERT(AfxIsValidAddress(m_ofn.lpstrFile, m_ofn.nMaxFile));
   DWORD nOffset = lstrlen(m_ofn.lpstrFile)+1;
   ASSERT(nOffset <= m_ofn.nMaxFile);
   memset(m_ofn.lpstrFile+nOffset, 0,

   // WINBUG: This is a special case for the file open/save dialog,
   //  which sometimes pumps while it is coming up but before it has
   //  disabled the main window.
   HWND hWndFocus = ::GetFocus();
   BOOL bEnableParent = FALSE;
   m_ofn.hwndOwner = PreModal();
   if (m_ofn.hwndOwner != NULL && ::IsWindowEnabled(m_ofn.hwndOwner))
      bEnableParent = TRUE;
      ::EnableWindow(m_ofn.hwndOwner, FALSE);

   _AFX_THREAD_STATE* pThreadState = AfxGetThreadState();
   ASSERT(pThreadState->m_pAlternateWndInit == NULL);

   if (m_ofn.Flags & OFN_EXPLORER)
      pThreadState->m_pAlternateWndInit = this;

   memset(&m_ofnEx, 0, sizeof(m_ofnEx));
   memcpy(&m_ofnEx, &m_ofn, sizeof(m_ofn));
   if (IsWin2000())
      m_ofnEx.lStructSize = sizeof(m_ofnEx);

   int nResult;
   if (m_bOpenFileDialog)
      nResult = ::GetOpenFileName((OPENFILENAME*)&m_ofnEx);
      nResult = ::GetSaveFileName((OPENFILENAME*)&m_ofnEx);

   memcpy(&m_ofn, &m_ofnEx, sizeof(m_ofn));
   m_ofn.lStructSize = sizeof(m_ofn);

   if (nResult)
      ASSERT(pThreadState->m_pAlternateWndInit == NULL);
   pThreadState->m_pAlternateWndInit = NULL;

   // WINBUG: Second part of special case for file open/save dialog.
   if (bEnableParent)
      ::EnableWindow(m_ofnEx.hwndOwner, TRUE);
   if (::IsWindow(hWndFocus))

   return nResult ? nResult : IDCANCEL;

BOOL CFileDialogEx::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
   memcpy(&m_ofn, &m_ofnEx, sizeof(m_ofn));
   m_ofn.lStructSize = sizeof(m_ofn);

   return CFileDialog::OnNotify( wParam, lParam, pResult);

// The following functions are provided just to demonstrate that they
// get called; ie, that MFC's internal dialog proc is in fact hooked
// up. You can delete them if you like.
BOOL CFileDialogEx::OnFileNameOK()
   return CFileDialog::OnFileNameOK();

void CFileDialogEx::OnInitDone()

void CFileDialogEx::OnFileNameChange()

void CFileDialogEx::OnFolderChange()

void CFileDialogEx::OnTypeChange()
   TRACE(_T("OnTypeChange(), index = %d\n"), m_ofn.nFilterIndex);

// EOF
Just add these 2 files into the your project and

replace CFileDialog to the CFileDialogEx in the your code.
Good Luck!
boomshankerAuthor Commented:
That's great!

Thank you so much for your help, and your quick response.
Much appreciated.

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