Drag&Drop outside the app doesn't trigger

[Meehael]

Hi,

I'm making a game where you can drag & drop (move around) Image controls on the Form (among other things). In the Image MouseMove event I call the Drag event and disable the Image, and in the Form DragDrop event I position the image and re-enable the Image. But, if a user drags the image outside the form, the "No Drop" cursor appears and if the user actually "drops" the image outside, the form's DragDrop event doesn't trigger, thus the Image isn't re-enabled.
I'm using (manual) Drag&Drop, not OLEDrag&Drop. Any suggestions as to how to handle dragging outside? Should I use OLEDragDrop?

Thanks