I've implemented a XTPTaskPanel look-alike to go into a Shortcutbar so that I could drag items onto panes.

 

However, now I'm running into trouble.  It looks like the headers for the panes don't support auto-expand on drag over.  So there's no way to drag an item from one pane to another.

 

I know this is because I'm trying to use a ShortcutBar as a taskbar, but surely drag and drop wouldn't be a bad feature to support?

 

On that matter, it would be really good if the structure could be made so that you can add support for other clipboard types etc, and drag into the controls as well as out.  Some sort of callback, or message or virtual function call.