row_drop_possible

Determines whether a drop is possible before the given dest_path, at the same depth as dest_path.

i.e., can we drop the data in selection_data at that location. dest_path does not have to exist; the return value will almost certainly be false if the parent of dest_path doesn’t exist, though.

Parameters:

this	a TreeDragDest
dest_path	destination row
selection_data	the data being dragged

Returns:

true if a drop is possible before dest_path