监视打印机部分线程内容 没有写WIN9X部分的线程，在WIN9X下，监视SPOOL的消息-Monitor the contents of the printer part of the thread part of the thread did not write WIN9X in WIN9X, the monitor message SPOOL

一种多导联心电监测仪驱动程序，包括数据采集、处理、在液晶屏上显示文字和曲线以及微型热敏打印机驱动。-A multi-lead ECG monitor drivers, including data acquisition, processing, display text on the LCD screen and curves, and miniature thermal printer driver.