虚拟打印的实现。

虚拟打印主要用于将各种文档转换成为各种图形，例如将一个doc文件转换成一个BMP图。我在实现虚拟打印的时候，使用了DDK和DELPHI的一些东西。

-The realization of the virtual printing. Virtual printing is mainly used for a variety of documents to be converted into a variety of graphics, such as a doc file into a BMP plan. I am in the realization of a virtual print when using the DDK and DELPHI something.