The maximum width of the scroll box of the DataWindow’s horizontal scroll bar. This value is set by the DataWindow server based on the layout of the DataWindow object and the size of the DataWindow control. Use HorizontalScrollMaximum with HorizontalScrollPosition to synchronize horizontal scrolling in multiple DataWindow objects.
DataWindows
Describe argument:
"DataWindow.HorizontalScrollMaximum"
[Visual Basic] setting = dw1.Describe("DataWindow.HorizontalScrollMaximum")