Solved

Custom Properties for "virtual folders" in windows explorer

Posted on 1998-07-26
2
415 Views
Last Modified: 2013-12-03
Experts Exchange,

I am developing an application that includes adding a "virtual folder" to the windows explorer tree at the same level as A:\, C:\, D:\, Control Panel etc…., by using the Shell Library Interfaces.

To this "virtual folder" have I attached a context menu handler, and by registering the default flag SFGAO_HASPROPSHEET for this folder, have I managed to enable the "Properties" menu option in the context menu. To this "properties" menu option is my goal to attach custom designed property pages, including a custom first page.

My problem is that when I select the "properties" menu option I get a message from the system telling me that " the needed methods for the object are not available". I have tried to solve the problem with the "IshellPropSheetExt" interface, but as i understand is this interface only for adding extra property pages to standard file property pages.

So, my questions are how do I implement the interface for custom designed property pages, including a custom first page, attached to a "virtual folder" in the windows explorer? As always is there any good sample that shows this mechanism?

I have noticed that in the file Shlguid.h is there Shell Library Interfaces defined but not documented at all. There is for instance an interface ID called "IID_IPropSheetPage". Is it perhaps this interface i should use, and if so where can i find documents that describe this. Is it perhaps interfaces only known by Microsoft?

Best regards

0
Comment
Question by:StefanJo
2 Comments
 

Author Comment

by:StefanJo
ID: 1411064
Adjusted points to 200
0
 

Accepted Solution

by:
DmitryC earned 200 total points
ID: 1411065
Hi,

In case when namespace extension (AKA virtual folder) has got SFGAO_HASPROPSHEET bit set, shell looks for IPropSheetExt CLSID's in the following location:
HKEY_CLASSES_ROOT\CLSID\{your virtual folder CLSID}\ShellEx\PropertySheetHandlers\{your propsheetext CLSID}

It asks to create instance of {your propsheetext CLSID} with IShellExtInit interface. After the Initialize call succeeds it QueryInterfase's it for IPropSheetExt.

Also, try to look at your IContextMenu's InvokeCommand calls. It is possible that shell will call it with "properties" verb and ask to display PropertySheet dialog by yourself.

My extension is rooted from Desktop and I tried to put it into My Computer (as you did) also - it works fine.

Regards,
Dima
0

Featured Post

Instantly Create Instructional Tutorials

Contextual Guidance at the moment of need helps your employees adopt to new software or processes instantly. Boost knowledge retention and employee engagement step-by-step with one easy solution.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Run Program using VBScript 3 80
Cannot debug web form sthrough Visual Studio 2013 2 102
Application vs Workbook.applicaiton 3 45
VS2015 Redefinition errors 4 91
With most software applications trying to cater to multiple user needs nowadays, the focus is to make them as configurable as possible. For e.g., when creating Silverlight applications which will connect to WCF services, the service end point usuall…
For most people, the WrapPanel seems like a magic when they switch from WinForms to WPF. Most of us will think that the code that is used to write a control like that would be difficult. However, most of the work is done by the WPF engine, and the W…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question