[Qt-interest] Qt 4.6.2 COCOA - QTreeView drags not starting

[Paul Miller]

I can't get my app to start a drag operation on Qt Cocoa. The same code 
works fine on Windows + Linux. It's acting like dragging is disabled on 
the view, which is set to ExtendedSelection mode. As I attempt to drag 
an item, it merely changes the selection of the items I move the mouse over.

Anyone else seen this, and (hopefully) have a work-around?