The Research and Implementation of the Embedded Window System

This paper provides a modularized embedded window system model, which is devided into input/output , kernel and application interface layers and organized by message driving. The design method is based on message driving, screen management, resource management. All modules of the window system communicate by sending messages to and receiving messages from the message queue . The key of screen management technology is how to manage cascade and clipping of windows . The designer must define reasonable data structures and calling functions about pictures , fonts and color in the window . EWS system proves that above method is useful to design a high powered , concision , easy portable and customized embedded window system.