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CFileDialog using MFC on Vista

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Forum Name: General Discussion
Forum Description: Topics Related to Visual C++ MFC Development in General
URL: http://forum.codejock.com/forum_posts.asp?TID=10550
Printed Date: 27 April 2024 at 11:46am
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Topic: CFileDialog using MFC on Vista

Posted By: cpede
Subject: CFileDialog using MFC on Vista
Date Posted: 08 May 2008 at 2:59am

When using VS2008 and MFC I automatically get the Vista look on my file open dialogs. But when I have added a template this is not included :-(

I can then retrieve the GetIFileDialogCustomize interface and add controls. And this also works for me.

How can I better control the placement of the controls? E.g. if I wan to add a large edit field called Comments, I cannot control the size of it?
My other question is about the events.
Is there an easy way to overwrite the control events in MFC CFileDialog? In the MFC implementation I can see the the events are implemented, but how do I get access or overwrites then. E.g. the OnButtonClicked?

Thanks, cpede

Replies:

Posted By: cpede
Date Posted: 01 December 2008 at 8:17am

I would really appreciate if someone knows answers to these problems

The positioning is only cosmetic, but the control events are important. Browsing the web only reveals that I should make a class derived from IFileDialogControlEvents abd use the Advise method, but since VS2008 MFC CFileDialog already does that, there must be an easier way??

-cpede

Posted By: znakeeye
Date Posted: 01 December 2008 at 11:30am

The new file dialog is one of the reasons why I switched back to XP

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PokerMemento - http://www.pokermemento.com/

Posted By: Sven
Date Posted: 02 December 2008 at 5:40am

Set the last parameter in CFileDialogs constructor to FALSE and you will get the XP implementation on Vista too.

Posted By: cpede
Date Posted: 02 December 2008 at 7:04am

Well I was actually looking for a solution. Going back to old technology is not my style, I would rather solve the issues in front of me, - too early for me to resign.

Am I the only one making a custom CFileDialog? Looking in MSDN did not solve anything, and they are also terrible in answering posts at there forum.

-cpede

Posted By: robin_l
Date Posted: 02 December 2008 at 11:35am

Look at the IFileDialogControlEvents interface for handling button clicks etc.

I'm not sure how you change from the default control size though....

-------------
Product: Xtreme ToolkitPro 2009 (13.4.1)
Platform: Windows 7 Ultimate(64bit)
Language: Visual Studio 2010 (C++)

Posted By: cpede
Date Posted: 02 December 2008 at 2:43pm

Thanks for the reply.

I know that this is the interface to look for, and what I should do is to implement this interface and Advise the IFileDialog with this event connection point.

But when using CFileDialog in MFC 9 this already implements this interface, but by looking in the MFC code this implementation is empty.

My question is really can I redirect this interface to my own implementation?

Or is it possible to do a simple virtual inheritance?

What happens if I advice with my own, where does it leave the MFC implementation?

-cpede

Posted By: robin_l
Date Posted: 02 December 2008 at 3:28pm

It is a while since I did this, but what I do is the following. In a class derived from CFileDialog, I include the following in the declaration:

protected:
DECLARE_INTERFACE_MAP()
BEGIN_INTERFACE_PART(FileDialogControlEvents, IFileDialogControlEvents)
STDMETHOD(OnItemSelected)(IFileDialogCustomize *, DWORD, DWORD);
STDMETHOD(OnButtonClicked)(IFileDialogCustomize *, DWORD);
STDMETHOD(OnCheckButtonToggled)(IFileDialogCustomize *, DWORD, BOOL);
STDMETHOD(OnControlActivating)(IFileDialogCustomize *, DWORD);
END_INTERFACE_PART_OPTIONAL(FileDialogControlEvents)

Then in the source file, something like:

BEGIN_INTERFACE_MAP(CMyDialog, CFileDialog)
INTERFACE_PART(CMyDialog, ID_IFileDialogControlEvents_MFC, FileDialogControlEvents)
END_INTERFACE_MAP()

in the constructor you need to include

USE_INTERFACE_PART_STD(FileDialogControlEvents);

you then need to implement the methods (the ones below are blank)

STDMETHODIMP CMyDialog::XFileDialogControlEvents::OnItemSelected( IFileDialogCustomize *pfdc, DWORD dwIDCtl, DWORD dwIDItem )
{
METHOD_PROLOGUE(CMyDialog, FileDialogControlEvents)
return S_OK;
}

STDMETHODIMP CMyDialog::XFileDialogControlEvents::OnButtonClicked( IFileDialogCustomize *pfdc, DWORD dwIDCtl )
{
METHOD_PROLOGUE(CMyDialog, FileDialogControlEvents)
return S_OK;
}

STDMETHODIMP CMyDialog::XFileDialogControlEvents::OnCheckButtonToggled( IFileDialogCustomize *pfdc, DWORD dwIDCtl, BOOL bChecked )
{
METHOD_PROLOGUE(CMyDialog, FileDialogControlEvents)
return S_OK;
}

STDMETHODIMP CMyDialog::XFileDialogControlEvents::OnControlActivating( IFileDialogCustomize *pfdc, DWORD dwIDCtl )
{
METHOD_PROLOGUE(CMyDialog, FileDialogControlEvents)
return S_OK;
}

STDMETHODIMP_(ULONG) CMyDialog::XFileDialogControlEvents::AddRef()
{
METHOD_PROLOGUE(CMyDialog, FileDialogControlEvents)
return pThis->ExternalAddRef();
}

STDMETHODIMP_(ULONG) CMyDialog::XFileDialogControlEvents::Release()
{
METHOD_PROLOGUE(CMyDialog, FileDialogControlEvents)
return pThis->ExternalRelease();
}

STDMETHODIMP CMyDialog::XFileDialogControlEvents::QueryInterface(
REFIID iid, void FAR* FAR* ppvObj)
{
METHOD_PROLOGUE(CMyDialog, FileDialogControlEvents)
ENSURE(ppvObj != NULL);
return (HRESULT)pThis->ExternalQueryInterface(&iid, ppvObj);
}

-------------
Product: Xtreme ToolkitPro 2009 (13.4.1)
Platform: Windows 7 Ultimate(64bit)
Language: Visual Studio 2010 (C++)

Posted By: cpede
Date Posted: 02 December 2008 at 4:52pm

Wow I really appreciate thanks

-cpede