VC下实现快速无闪烁的矢量图绘制，可以自定义坐标和显示范围-VC achieve rapid Flicker-free vector graphics rendering, can define and demonstrate the scope of coordinates

几个正交变换的例子，对于学习数字图像的新手来说会有点帮助的。-CWinApp CSingleDocTemplate CCommandLineInfo ShowWindow UpdateWindow DragAcceptFiles CDialog CDataExchange CDocument MessageBox GetCurrentDirectory GlobalAlloc GlobalFree CFile CString CCmdU