protected internal override void OnMouseEnter(int x, int y, MouseButtons mb) { if ((mb & MouseButtons.Left) != MouseButtons.None) { this.m_Scrolling = true; Engine.ResetTicks(); this.m_Last = Engine.dTicks + 150.0; this.m_Info.ToSell += Math.Sign(this.m_Offset); this.AmountChanged(); } }