Win9x下VxD和应用程序双向通讯的实现(一)

Two-Way Communication Between VxD and Application under the OS Win9x(PartⅠ)

为实现Win9x下高速采样和实时控制 ,并给用户提供友好的界面 ,须采用VxD和Win32应用程序相结合的方法 ,这就要求能在VxD和Win32应用程序之间通讯。在第一部分介绍用查询方式实现VxD和Win32应用程序的通讯 ;在第二部分介绍用消息方式和事件方式进行通讯。这些方法均经过实践的检验 。

To realize high-speed data acquisition and real-time control on Win9x, and provide a good user interface, it is needed to use VxD with the cooperation of Win32 application. This requires the communication between VxD and Win32 application. In the first part, querying method is introduced to realize the communication between VxD and Win32 application; in the second part, message method and event method are presented. These methods have been proved to be able to satisfy the conditions of high-speed data acquisition and real-time control in practice.