This group of functions displays error and information messages, adds messages to log window, shows scrollbar and flash:
void Addtolist (long addr,int highlight,char *format,...);
void Updatelist(void);
HWND Createlistwindow(void);
void Error(char *format,...);
void Message(ulong addr,char *format,...);
void Infoline(char *format,...);
void Progress(int promille,char *format,...);
void Flash(char *format,...);