C#

/// <summary>
/// Positions the vertial and horizontal scroll bars by the given X and Y offsets
/// </summary>
private void CenterScrollBars(int X, int Y)
{
    //horizontal scroll bar first
    HScrollProperties hsp = MainPanel.HorizontalScroll;
    if (hsp.Visible) //if we don't have a scroll bar, don't try moving it!
    {
        //calculate the offset to move the scroll bar in order to center on the clicked point
        //since the point uses the DrawingBox's coordinate system, we need to move it into the
        //containing panel's coordinate system first by doing a shift
        int offs = (X + DrawBox.Location.X) - (MainPanel.Width / 2);
        MoveScrollPosition(hsp, offs);
    }
    //vertical next
    VScrollProperties vsp = MainPanel.VerticalScroll;
    if (vsp.Visible)  //if we don't have a scroll bar, don't try moving it!
    {
        //same idea as above
        int offs = (Y + DrawBox.Location.Y) - (MainPanel.Height / 2);
        MoveScrollPosition(vsp, offs);
    }



}

/// <summary>
/// Moves the scroll bar by the specified offset, clamping to min or maximum if needed
/// </summary>
/// <param name="sp">The scroll bar to move</param>
/// <param name="offset">The offset by which to move the scroll bar.</param>
private void MoveScrollPosition(ScrollProperties sp, int offset)
{
    int val = sp.Value + offset;
    //clamp the value to the min and max values of the scroll bar
    if (val < sp.Minimum)
    {
        val = sp.Minimum;
    }
    else if (val > sp.Maximum)
    {
        val = sp.Maximum;
    }
    sp.Value = val;
    sp.Value = val; //TODO -- investigate this problem, scroll bar position not updated properly unless this is done twice
}