Sets the row separator function, which is used to determine whether a row should be drawn as a separator. If the row separator function is %NULL, no separators are drawn. This is the default value.
a #GtkTreeViewRowSeparatorFunc
user data to pass to @func, or %NULL
destroy notifier for @data, or %NULL
2.6
See Implementation
Sets the row separator function, which is used to determine whether a row should be drawn as a separator. If the row separator function is %NULL, no separators are drawn. This is the default value.