IFileDialog2 not registered on W7

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I am trying to use the IFileDialog2 object on Windows 7

#include <shobjidl.h>

...

CComPtr<IFileDialog2> FileDialog2Ptr;
HRESULT hr = FileDialog2Ptr.CoCreateInstance(__uuidof(IFileDialog2));

The result hr is "0x80040154 Class not registered".

According to MSDN[^] IFileDialog2 requires Windows 7 and ComDlg32.dll version 6.1 or later. I am running Windows 7 Home Edition with ComDlg32.dll version 6.1.7601.17514.

I am using VS2005 Team Suite SP1 with the Platform SDK version 7.0

How can I fix this error?

Posted 16-Jun-11 19:07pm

PJ Arends

Updated 16-Jun-11 19:21pm

v2

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barneyman · Accepted Answer · 2011-06-16T19:34:00

Solution 1

you're trying to create the interface from an invalid class factory

HRESULT hr = FileDialog2Ptr.CoCreateInstance(__uuidof(IFileDialog2));

That should be CLSID_FileOpenDialog?

Have a look here Common Item Dialog[^]

Posted 16-Jun-11 19:34pm

barneyman

Updated 16-Jun-11 19:36pm

v2

Comments

PJ Arends 17-Jun-11 3:07am

The link you gave talks about IFileDialog, IFileSaveDialog, and IFileOpenDialog. These were new in Vista. The MSDN link I gave above is for IFileDialog2 that is new in Win7. I got the older ones to work just fine, but I want the functionality of IFileDialog2 where I can limit the scope with SetNavigationRoot().

barneyman 17-Jun-11 4:09am

yes it does, but I'm guessing those interfaces are exposed by that class factory ... the uuid of the interface is different from the uuid of the class factory

PJ Arends 17-Jun-11 12:17pm

Tried it, and it works! Thanks

<pre>HRESULT hr = FileDialog2Ptr.CoCreateInstance(CLSID_FileOpenDialog);</pre>