Drag under effects in GTK2

["Veronika Irvine" <Veronika_Irvine oti com>]

Hi,

When dragging over a tree or table I would like to have the item under the 
cursor highlighted to give the user feedback as to where the item will be 
dropped.  I have created the drop target using gtk_drag_dest_set.  I have 
tried using the GtkDestDefaults and I have tried calling gtk_drag_highlight directly but 
neither gives the desired effect.  the GtkDestDefaults do not give any 
visible result and gtk_drag_highlight draws a box around the entire table 
or tree but does not show a highlighting of the item under the cursor. Any 
suggestions?

Thank you,
Veronika