可重用源代码。继承自ＣＥｄｉｔ类，可生成平滑曲线。任意添加控制点。-reusable source code. CEdit inherited from the category, which will generate a smooth curve. Add new control points.

在form中加入图片，并对图片加控制点，可拖动-add picture into a form,add control dot to picture, you can drap it