Quinta is a lightwheight but powerful application framework released under the terms of the BSD license (see the Copying file). Quinta is written in C and is built on top of SDL and similar platform-independent open-source technologies. Therefore it

一个集成的图形界面的程序，可调用每一次作业子程序。 一、调用画点的函数，用DDA、中点算法画直线和中点算法画圆和椭圆。 二、多边形扫描转换算法和区域填充算法实现（扫描线算法为必做，基于求余运算的边缘填充和边标志算法为任选；基于种子的区域填充采用4连通区域的递归种子填充算法，或扫描线种子填充算法，要求种子点(x,y)可交互输入）。 三、线段裁剪和多边形裁剪算法的动画演示实现。（两种线段裁剪算法和H-S多边形逐边裁剪算法）多边形裁剪算法的动画演示要求先画出一个封闭的多边

WordPad, always handy for basic word-processing, just got better. In Windows 7, it has a new ribbon—the strip across the top of the window that shows what a program can do—with choices displayed out in the open rather than in menus.