ActionScript for Flash MX: The Definitive Guide, 2nd Edition By Colin Moock
Chapter 18. ActionScript Language Reference
MovieClip.onDragOver( ) Event Handler
Flash 6
Button event; occurs when the mouse is pressed over the clip then moves off and back on the clip
mc.onDragOver() on (dragOver) { on (dragOver) { statements on (dragOver) { statements }
Description
The onDragOver( ) event handler is identical to the Button.onDragOver( ) event, except that it can also be applied to movie clip instances (though not main movies such as _root, _level0, etc.). For details, see Button.onDragOver( ) and Section 13.9.