- g_object_set_data (button, "row", GUINT_TO_POINTER (i));
- g_signal_connect_after (button, "draw", indicate_filtered_case, data_store);
+ g_object_set_data (G_OBJECT (button), "row", GUINT_TO_POINTER (i));
+ g_signal_connect_after (button, "draw", G_CALLBACK (indicate_filtered_case), data_store);