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
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.