gtkTreeViewColumnSetSortOrder(object, order)
object
order
gtkTreeViewColumnSetSortColumnId
if you want automatic sorting
support. This function is primarily for custom sorting behavior, and should
be used in conjunction with gtkTreeSortableSetSortColumn()
to do
that. For custom models, the mechanism will vary.
The sort indicator changes direction to indicate normal sort or reverse sort.
Note that you must have the sort indicator enabled to see anything when
calling this function; see gtkTreeViewColumnSetSortIndicator
.