the position to determine the destination row for
the position to determine the destination row for
Return location for the path of the highlighted row, or NULL. out[allow-none]
Return location for the drop position, or NULL. out[allow-none]
whether there is a row at the given position, TRUE if this is indeed the case.
Determines the destination row for a given position. 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.