return this->widget[widget_index].right - this->widget[widget_index].left + 1;

	}

	bool SetFocusedWidget(byte widget_index);

	void HandleButtonClick(byte widget);

	const Widget *GetWidgetOfType(WidgetType widget_type) const;

	void RaiseButtons(bool autoraise = false);

	void CDECL SetWidgetsDisabledState(bool disab_stat, int widgets, ...);

	void CDECL SetWidgetsHiddenState(bool hidden_stat, int widgets, ...);

	void CDECL SetWidgetsLoweredState(bool lowered_stat, int widgets, ...);

	void DrawWidgets() const;

	void DrawViewport() const;

	void DrawSortButtonState(int widget, SortButtonState state) const;

	void DeleteChildWindows() const;

	void SetDirty() const;

	void ReInit();

	/*** Event handling ***/