/* it seems that gtk_list_store_clear may call some callbacks
that use the column. Set the pointer to NULL to be safe. */
gtk_list_store_set(GTK_LIST_STORE(store), iter, FILE_COLUMN_POINTER, NULL, -1);
/* it seems that gtk_list_store_clear may call some callbacks
that use the column. Set the pointer to NULL to be safe. */
gtk_list_store_set(GTK_LIST_STORE(store), iter, FILE_COLUMN_POINTER, NULL, -1);