void ShowIndustryDirectory();

void ShowSubsidiesList();

void ShowEstimatedCostOrIncome(Money cost, int x, int y);

void ShowErrorMessage(StringID summary_msg, StringID detailed_msg, int x, int y, bool no_timeout = false);

void ShowExtraViewPortWindow(TileIndex tile = INVALID_TILE);

void BuildFileList();

void SetFiosType(const byte fiostype);

/* FIOS_TYPE_FILE, FIOS_TYPE_OLDFILE etc. different colours */