Converts sorted_path
to a path on the child model of this.
That is, sorted_path
points to a location in this. The returned path will point to the
same location in the model not being sorted. If sorted_path
does not point to a location in the child model,
null is returned.
this |
A `GtkTreeModelSort` |
sorted_path |
A `GtkTreePath` to convert |
A newly allocated `GtkTreePath` |