Project: SWT
Bug 247557 Tracker seems broken, affects dragging Views, Editors
Reported: 2008-09-16 16:29:12 | Status: resolved fixed

I was testing for M2 and noticed that the DnD feedback was broken on my Vista box (works fine elsewhere). I think I've tracked it down to a snippet (that I'll attach) indicating that the return value from 'display.getCursorControl()' is returning null on Vista rather than the actual control. Note that this seems to be Tracker-related...if you add the same code directly in a mouse move listener it seems to work on both.

Files changed in fix:
bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tracker.java