Interactive system and method

The present invention provides an interactive system and method for adding a descriptor device in a USB keyboard descriptor interactive apparatus, and the mapping table stored in the gesture operation keyboard messages in interactive device, when the display unit when the interactive device detects a user's gesture, a gesture operation obtains corresponding keyboard message from the mapping table, and then the keyboard message gesture operation corresponding to the host. By using the method of the present invention said keyboard message corresponding to the gesture, which realizes a, so that no user interactive application development devices, and is compatible with various operating systems, without having to re-develop, simplifies human-computer interaction operating equipment, reducing the difficulty and thresholds used by the user to enhance the user experience.