HorizontalSash is the class for the horizontal border around a window pane that can be dragged to adjust the window size.
This class is supported only on the Open Agent.
HorizontalSash is derived from the Sash class.
HorizontalSash inherits its methods from the AnyWin, Control, and Sash classes.
HorizontalSash inherits all its properties from the AnyWin and Control classes.