alse
               Else
                  m_lLastVertTime = timeGetTime()
               End If
            End If
         End If
         If (bDoIt) Then
            tSIVert.fMask = SIF_POS Or SIF_TRACKPOS
            lNewPos = tSIVert.nPos + lVertOffset
            If (lNewPos &lt; 0) Then lNewPos = 0
            If (lNewPos &gt; tSIVert.nMax + tSIVert.nPage) Then lNewPos =
             tSIVert.nMax + tSIVert.nPage
            tSIVert.nPos = lNewPos
            tSIVert.nTrackPos = lNewPos
            Se