圖形用戶界面是嵌入式系統中重要部分，是用戶與系統進行交互的樞紐，如何建立一個有效的消息機制，實現消息從用戶到系統的傳遞，以及系統對消息的處理如何再反映
到圖形用戶界面是嵌入式系統開發的重要環節。本文通過對MiniGUI 的消息機制的分析后，介紹一種簡單的基于嵌入式系統的消息機制的實現方法，其相對于專業的GUI 中間件中的消息機制簡單許多，但是也有著完善的結構，便于系統整合在一起，非常適用于一些輕量級圖形用戶界面的嵌入式應用。
關鍵詞：嵌入式系統；MiniGUI；消息機制；圖形界面開發；事件驅動
Abstract: GUI(Graphics User Interface)is an important part of embedded system, it is the
hinge of the interaction between the users and the system. How to implement an effective message mechanism for the system to receive messages form the users and how to reflect on the GUI after dealing with the messages is a crucial step in embedded system developing. This paper analyses the message mechanism of MiniGUI and then give out a method to implement a message mechanism based on embedded system. This mechanism is simpler compared with some other professional GUI middleware, but it also has a integrated structure and easy to be integrated into the system，it is adapted to be used in the embedded systems which just need a simple GUI .
Key Words: embedded system; MiniGUI; message mechanism; image interface developer;
event driver