MQL5 ReferenceStandard LibraryPanels and DialogsCWndClientOnHScrollHide CreateOnEventColorBackgroundColorBorderBorderTypeVScrolledHScrolledCreateBackCreateScrollVCreateScrollHOnResizeOnVScrollShowOnVScrollHideOnHScrollShowOnHScrollHideOnScrollLineDownOnScrollLineUpOnScrollLineLeftOnScrollLineRightRebound OnHScrollHide The virtual handler of the HScroll (horizontal scroll) dependent control "Hide" (horizontal scroll bar hide) internal event. virtual bool OnHScrollHide() Return Value true - event processed, otherwise - false. Note The base class method does nothing and always returns true. OnHScrollShow OnScrollLineDown