在DDcam的基础上作出了修改，运用direct show技术将视频采集后填充bitmap， 将该bitmap作为一个图片存储到磁盘上。该版本能在window moblie 上运行，可惜打印出来的图片有点瑕疵-In DDcam modifications made on the basis of using the direct show video capture technology will be filled after the bitmap, the bitmap as a pictu