Drag/Drop question

I have an MDI app where I'm trying to drag things from one MDI child to
another. The problem is that the drop target never gets any event
notifications because it never has the focus. What I'd like to do is drag
over this item, and then when the mouse moves over it, give it the focus.
But I can't figure out any way to have the MDI parent handle MouseMove
events. Is there a better way?

Thanks