利用GDI+和CImage类实现任意格式图像的打开,复制,剪切,粘贴,选择,线性渐变,中心渐变及图形对象的绘制.-using GDI and CImage achieve arbitrary category of open-format images, copy, cut, paste, select, linear gradient, the center graded and graphical object mapping.

基于VC2002 的autocad二次开发demo。用于对选择对象集合过滤-Used to select the object set filter

GDI图形编程，能绘制矩形、椭圆、圆、填充矩形等，并实现一个树形列表列出图形对象，选中能闪烁，显示图形对象属性-GDI graphics programming, can draw rectangular, oval, round, filled rectangle, and set out to achieve a graphic object tree list, select to flash, display graphics object properties