drag.x and
drag.y are expected to be in widget coordinates. This function is only
meaningful if tree.view is realized. Therefore this function will always
return FALSE if tree.view is not realized or does not have a model.gtkTreeViewGetDestRowAtPos(object, drag.x, drag.y)objectdrag.xdrag.yTRUE if this
is indeed the case.pathNULL. [ allow-none ]posNULL. [ allow-none ]