set_default_sort_func
Description:
Sets the default comparison function used when sorting to be sort_func.
If the current sort column id of this is gtk_tree_sortable_default_sort_column_id , then the model will sort using this function.
If sort_func is null, then there will be no default comparison function. This means that once
the model has been sorted, it can’t go back to the default state. In this case, when the current sort column id of
this is gtk_tree_sortable_default_sort_column_id, the model will be unsorted.
Parameters:
| this |
A `GtkTreeSortable` |
| sort_func |
The comparison function |
| destroy |
Destroy notifier of |
| user_data |
User data to pass to |