用纯windows api编写的画线小程序，但是通过动态内存分配能保存所画的所有的线，同时通过图像双缓冲技术使得图像的显示非常流畅，另外运用了映射模式实现了就算是所画的线超出了窗口的范围，也能在窗口中显示出来的功能。-Written in pure windows api to draw a line applet, but dynamic memory allocation can save all the lines drawn, and through the double-bufferi

VC6.0编写的利用内存映射文件显示超大位图，鼠标按下松开可移动位图，鼠标滚动可以缩小放大位图-VC6.0 prepared using memory-mapped files display a large bitmap, mouse press release the movable bitmap mouse scroll can narrow the enlarged bitmap

基于内存映射读取内存中的BMP文件在图像控件中显示-BMP files based on memory-mapped read memory displayed image control

Windows SDK编程，介绍SDK编程的多线程编程，内存映射文件，树形视图控件等。-Windows SDK programming, SDK programming introduced multi-threaded programming, memory mapping files, tree-shaped view controls and so on.