Tengo una funcion api llamada SetScrollInfo() y uno de los parametros es una estructura
CODIGO VB PARA PASAR A VFP
*/--- Constantes
Const SBS_HORZ = 0
Const SBS_VERT = 1
Private Const SIF_RANGE = &H1
Private Const SIF_PAGE = &H2
Private Const SIF_POS = &H4
Private Const SIF_DISABLENOSCROLL = &H8
Private Const SIF_TRACKPOS = &H10
Private Const SIF_ALL = (SIF_RANGE Or SIF_PAGE Or SIF_POS Or SIF_TRACKPOS)
*/--- Estructura
Public Structure SCROLLINFO
Public cbSize As Integer
Public fMask As Integer
Public nMin As Integer
Public nMax As Integer
Public nPage As Integer
Public nPos As Integer
Public nTrackPos As Integer
End Structure
*/--- Funciones api
Declare Function GetScrollInfo IN "user32.dll" Integer hWnd, Integer nBar, SCROLLINFO lpScrollInfo
Declare Function SetScrollInfo Lib "user32.dll" Integer hWnd, Integer nBar, SCROLLINFO lpScrollInfo, Boolean fRedraw
*/--- Codigo
Private Sub rtb1_VScroll(ByVal sender As Object, ByVal e As System.EventArgs) Handles rtb1.VScroll
Dim SInfo As New SCROLLINFO
SInfo.cbSize = SizeOf(SInfo)
SInfo.fMask = SIF_ALL
GetScrollInfo(rtb1.Handle, SBS_VERT, SInfo)
SetScrollInfo(pNumber.Handle, SBS_VERT, SInfo, True)
End Sub
Saludos