画图操作中，如何在点击滚动条时不让图闪动呢

Question

private void drawImage(Graphics g, int x, int y)
        {
            g.SetClip(ScrollingImageRectangle);
            Rectangle drawRect = new Rectangle(new Point(x, y), ScrollingImageRectangle.Size);
            g.DrawImage(this.scrollingImage, ScrollingImageRectangle, drawRect, GraphicsUnit.Pixel);
        }我在每次点击了滚动条后就去执行上面的函数..
但是这样它会闪动..

Answer 1

1)DoubleBuffer
2)用Invalidate(Region)
3)用DrawImageUnscaledAnd....