MQL5 ReferenceStandard LibraryPanels and DialogsCDialogCreateBackground CreateOnEventCaptionAddCreateWhiteBorderCreateBackgroundCreateCaptionCreateButtonCloseCreateClientAreaOnClickCaptionOnClickButtonCloseClientAreaVisibleClientAreaLeftClientAreaTopClientAreaRightClientAreaBottomClientAreaWidthClientAreaHeightOnDialogDragStartOnDialogDragProcessOnDialogDragEnd CreateBackground Creates dependent control (background). virtual bool CreateBackground() Return Value true - successful, otherwise - false. CreateWhiteBorder CreateCaption