Gets the row representing the parent for @self.
That is the row that would need to be collapsed to make this row disappear.
If @self is a row corresponding to the root model, %NULL is returned.
The value returned by this function never changes until the row is destroyed.
The parent of @self
See Implementation
Gets the row representing the parent for @self.
That is the row that would need to be collapsed to make this row disappear.
If @self is a row corresponding to the root model, %NULL is returned.
The value returned by this function never changes until the row is destroyed.