Problem with Browse for Folder

[FRBhote]

I don't remember where I got this from - but I am grateful for it.

However, I face difficulty with it not selecting the Initial folder.

Where am I going wrong?

[Dave Rabelink]

I think this comes from SalExtension.

Well, out of the box in TD, the feature to preselect a folder in the SHBrowseForFolder dialog is not supported.
This is because the API SHBrowseForFolder function implements a callback functionality to get the folder to be preselected.
And callbacks are not possible in TD without extra help.

See

BFFCALLBACK function pointer


The only way in TD to add support for callbacks is using the Callback library:

Callback archive


I'm using callback for most of my projects because I need those Windows API's.
This feature should in fact be part of the TD runtime by default in my opinion. A few libraries should be part of any project out-of-the-box. I name here: mtable, callback and subclasser.

It just happens that I'm currently busy changing the callback library so it does not need to be rebuild for each TD version separately.
When I'm finished with that and release it I will create a sample and post it here to be used with SHBrowseForFolder.

You could also use the sample provided in the old callback archive (callback2006.zip, callback2007.zip) which shows how to implement SHBrowseForFolder.

[FRBhote]

Thanks! Let me try.

[Dobby]

The only way in TD to add support for callbacks is using the Callback library:

Callback archive

I'm using callback for most of my projects because I need those Windows API's.
This feature should in fact be part of the TD runtime by default in my opinion. A few libraries should be part of any project out-of-the-box. I name here: mtable, callback and subclasser.

It just happens that I'm currently busy changing the callback library so it does not need to be rebuild for each TD version separately.
When I'm finished with that and release it I will create a sample and post it here to be used with SHBrowseForFolder.

Hello Dave,

a thousand thanks for all your work on these callback libraries.
I've been using them since 6.3 and I'm so glad to have them.

Since moving to TD7.3 I learned that Callback DLL 7.2 doesn't work. When Browsing for Folder, the app just crashes.

You mentioned, that you're working on a new callback dll already.
Any idea when it will arrive? It would be so great to have it back again.

best regards
Ulf

[guythompson2]

I'm also interested in the new callback dll. Is there any status on this?