用VC实现图像处理类库ImageLib及其应用实例,界面设计, 程序结构,工具条与状态条, 橡皮筋矩形选块或画图, 画曲线和写字, 选块的拖曳, 剪贴板操作,文件操作-with VC ImageLib image processing library and its application, interface design, program structure, with the tools of the state of the rubber-band rectangular block t