windows下的虚拟打印机程序，可以将任何可以打印的程序文档，装换成各种图片、pdf格式。-windows under a virtual printer procedures, can be any of the procedures can print documents, loaded into a variety of images, pdf format.

实现RGB565数据与BMP图片格式的转换，货BMP格式图片与RGB565数据的转换-To achieve RGB565 data and BMP image format conversion, BMP format images and RGB565 data conversion