Function Tree.getDropSectionAtPosition

Returns the drop section at position, or -100 if no item is there. Values -1, 0, or 1 will be returned for the "above item", "on item", and "below item" drop sections, respectively. See dropmodeflags for a description of each drop section. To get the item which the returned drop section is relative to, use getItemAtPosition.

long getDropSectionAtPosition (
  const(Vector2) position
) nothrow @nogc const;