这是一个简单的绘图程序，编制该程序的过程包括建立应用程序的基本框 架、处理视图、处理文档、串行化处理、滚动处理、窗口分割、创建对话模板 资源、创建对话类、定义成员变量、定义消息处理函数、创建对话类对象并显 示对话框以及添加工具栏按钮。 该程序的功能就是在单文档窗口中绘制各种不同线宽（有六种线宽）、不 同风格（有三种风格：实线、划线和点线）和不同颜色的线段。并且具备保存、 恢复、撤消、滚动、窗口分割等功能。 该程序所用到的都是Visual C++最基本、最核心的内容。-This is a simple drawing program, the preparation of the procedures for the establishment of the process, including the application of the basic fr a mework for handling View, documents, serial processing, and rolling, window segmentation, create dialogue template resources, the creation of such a dialogue, the definition member variables, the definition Message Handling Functions to create dialogue and object type dialog box appears and add toolbar button. The procedure is the function of a single document window mapping different width (a six linewidth), the different styles (three styles : solid line, and crossed point line) and different colors segment. And with the preservation, restoration, lifting, rolling, the window segmentation capabilities. The procedures are used by the Visual C