Use the ScrollPos property to change programmatically the position of the control's scroll bar. Use the ScrollPos property to get the horizontal or vertical scroll position.Use the ScrollBars property to define the control's scroll bars. Use the Scroll method to scroll programmatically the control's content. The control fires the OffsetChanged event when the control's scroll position is changed.

The following VB sample scrolls to the row 10,000:

With Grid1
    .ScrollPos(True) = 10000
End With

The following VB sample gets the cell's coordinates to let user aligns nicely a context popup menu:

Private Sub getCellPos(ByVal g As EXGRIDLibCtl.Grid, ByVal hItem As EXGRIDLibCtl.hItem, ByVal nColumn As Long, X As Long, Y As Long)
    X = -g.ScrollPos(False)
    With g
        Dim c As EXGRIDLibCtl.Column
        For Each c In .Columns
            If (c.Visible) Then
                If (c.Position < .Columns(nColumn).Position) Then
                    X = X + c.Width
                End If
            End If
        Next
        Y = 0
        If (.HeaderVisible) Then
            Y = Y + .HeaderHeight
        End If
        With .Items
            Dim i As EXGRIDLibCtl.hItem
            i = .FirstVisibleItem()
            While Not (i = hItem) And Not (i = 0)
                Y = Y + .ItemHeight(i)
                i = .NextVisibleItem(i)
            Wend
        End With
    End With
End Sub

The getCellPos method gets the x, y client coordinates of the cell ( hItem, nColumn ). The hItem indicates the handle of the item, and the nColumn indicates the index of the column. Use the ClientToScreen API function to convert the client coordinates to screen coordinates like bellow:

Private Type POINTAPI
        x As Long
        y As Long
End Type
Private Declare Function ClientToScreen Lib "user32" (ByVal hwnd As Long, lpPoint As POINTAPI) As Long

In VFP, use 1 instead .t. for changing the ScrollPos property like follows:

list1.object.scrollpos(1) = 123

instead

list1.scrollpos(.t.) = 123

In the following MouseDown handler the ItemFromPoint method determines the cell from the cursor. The sample displays an exPopupMenu control at the beginning of the cell, when user right clicks the cell:

Private Sub Grid1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    If Button = 2 Then
        With Grid1
            Dim h As EXGRIDLibCtl.hItem, c As Long, hit As EXGRIDLibCtl.HitTestInfoEnum
            h = .ItemFromPoint(X / Screen.TwipsPerPixelX, Y / Screen.TwipsPerPixelY, c, hit)
            If Not (h = 0) Then
                ' Selects the item when user does a right click
                Grid1.Items.SelectItem(h) = True
                ' Gets the client coordinates of the cell
                Dim xCell As Long, yCell As Long
                getCellPos Grid1, h, c, xCell, yCell
                ' Converts the client coordinates to the screen coordinates
                Dim p As POINTAPI
                p.X = xCell
                p.Y = yCell
                ClientToScreen Grid1.hwnd, p
                ' Displays the exPopupMenu control at specified position
                PopupMenu1.HAlign = EXPOPUPMENULibCtl.exLeft
                Debug.Print "You have selected " & PopupMenu1.Show(p.X, p.Y)
            End If
        End With
    End If
End Sub