.. highlightlang:: us .. _xyshowdropline: XYShowDropLine ============== .. index:: XYShowDropLine .. us.tag XYShowDropLine ENGLISH XYSet :ref:`XYShowDropLine` turns the drop line on or off. Drop lines will be drawn from a data point to the ground line. .. function:: bool = XYShowDropLine(hData, bShow) .. us.return **Return Value** If the function succeeds, the return value *bool* is TRUE (1); otherwise it is FALSE (0). .. us.params **Parameters** .. uparam:: hData The handle of a dataset created with :ref:`XYCreate` or :ref:`TYCreate`. .. uparam:: bShow *bShow* is the height of the ground line. .. seealso:: :ref:`overview-xy-datasets`, :ref:`XYIsDropLineVisible`, :ref:`XYSetDropValue`, :ref:`XYSetDropPen`, :ref:`XYCreate` :sub:`id-1282577`