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 ProEssentials v9 Help

PreHScroll Event

Scope Graph, Scientific Graph, and 3D Scientific Graph Object


Sub ctlname_PreHScroll( )


This event is triggered immediately before the control processes a HorzScroll event.


The developer reads SBCode and SBCode to determine the type of scroll action about to be processed.



This event is a wrapper to the PEWN_PREHSCROLL notification message.


See Also:  PreVScroll  OCX/VCL Events