+typedef void (*data_func_t)(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data);
+
+extern GtkTreeViewColumn *tree_view_column(GtkWidget *tree_view, int index, const char *title,
+ data_func_t data_func, PangoAlignment align, gboolean visible);
+