二进制文件的打印和预览，非常实用的，对VC的文件操作部分的学习很有帮助！-binary files and print preview, very practical, the VC operation of the paper part of the study and helpful!

利用windows虚拟打印机技术实现的虚拟打印机-The use of windows virtual printer technology to achieve a virtual printer! ! ! ! !

log fileprint statistics of the tree and memory used

基于对话框的打印预览程序。将源码拷贝到工程工，在需要实现打印即打印预览之处，调动打印类就行了！-Print Preview dialog-based program. Copy the source code to the project workers need to achieve in print or print preview of the Department, transfer printing type on the line!