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Posted 7 Nov 2011

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Displaying the 'new' Vista/Windows 7 File Dialog in 'old' MFC Apps

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13 Nov 2011CPOL
Displaying the 'new' Vista/Windows 7 File Dialog in 'old' MFC Apps
As far as I can tell, the only reason for the MFC CFileDialog class not displaying the new Vista/W7 style dialog (with breadcrumbs, etc.) is that it uses a hook for providing the various CFileDialog callbacks (CFileDialog::OnFileNameChange(), etc.).

So, if you _don't_ customize the file open dialog, all you need do to enable the new style dialogs is to derive a class from CFileDialog and disable the hook, as follows:
C++
class CMyFileDialog : public CFileDialog
{
   // constructor/destructor
   ...
   
   int DoModal()
   {
        // disable hook funtion
	m_ofn.lpfnHook = NULL;
	m_ofn.Flags &= ~OFN_ENABLEHOOK;

	return CFileDialog::DoModal();
   }
};

And the real gift is that when the dialog returns, you can query the results through your class exactly as if you had used CFileDialog directly!

Alternatively, you can simply modify the CFileDialog instance directly:
CFileDialog dialog(...);

// disable hook funtion
dialog.m_ofn.lpfnHook = NULL;
dialog.m_ofn.Flags &= ~OFN_ENABLEHOOK;

if (dialog.DoModal() == IDOK)
{
    ...
}

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

.dan.g.
Software Developer Maptek
Australia Australia
.dan.g. is a naturalised Australian and has been developing commercial windows software since 1998.

Comments and Discussions

 
GeneralThis is just CFileDialog checking that no one has been messi... Pin
.dan.g.16-Nov-11 17:28
professional.dan.g.16-Nov-11 17:28 
Generalstrange---I tried it, and immedeately ran into the following... Pin
Holger B.-J.14-Nov-11 20:57
MemberHolger B.-J.14-Nov-11 20:57 
QuestionRe: ASSERT(m_ofn.Flags & OFN_ENABLEHOOK); Pin
.dan.g.16-Nov-11 17:28
professional.dan.g.16-Nov-11 17:28 

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