dragDataGet  
  ⚠️ Deprecated ⚠️
This is deprecated since version 4.10.
Use list models instead
---Asks the GtkTreeDragSource to return a GdkContentProvider representing the row at @path. Should robustly handle a @path no longer found in the model!
Return
a GdkContentProvider for the     given @path
Parameters
path
row that was dragged