MQL5 ReferenceStandard LibraryPanels and DialogsCDialogCreateWhiteBorder CreateOnEventCaptionAddCreateWhiteBorderCreateBackgroundCreateCaptionCreateButtonCloseCreateClientAreaOnClickCaptionOnClickButtonCloseClientAreaVisibleClientAreaLeftClientAreaTopClientAreaRightClientAreaBottomClientAreaWidthClientAreaHeightOnDialogDragStartOnDialogDragProcessOnDialogDragEnd CreateWhiteBorder Creates dependent control (white border). virtual bool CreateWhiteBorder() Return Value true - successful, otherwise - false. Add CreateBackground