int taskwindow_output_handler(wimp_message *message, void *handle);
int display_redraw_handler(wimp_event_no event_code, wimp_block *event,
                           toolbox_block *id, void *handle);
void display_set_title(const char *title);
bool display_puts(const char *s);
void display_init(void);

typedef enum last_proc_report
{
    nothing_being_processed,
    RC5_being_processed,
    DES_being_processed
} last_proc_report;

extern last_proc_report contest_type;
