本文從Linux 系統(tǒng)的體系結(jié)構(gòu)從發(fā)，分析了作為華工II 型稅控收款機(jī)界面子系統(tǒng)ESCUT GUI 系統(tǒng)的構(gòu)成。結(jié)合基于嵌入式Linux 的稅控收款機(jī)的開發(fā)工作，通過對ESCUT GUI
窗口在實(shí)現(xiàn)過程中的設(shè)計(jì)與應(yīng)用，詳細(xì)說明了整個ESCUT GUI 系統(tǒng)的設(shè)計(jì)，并詳細(xì)論述GUI系統(tǒng)的窗口的鍵盤消息響應(yīng)、鼠標(biāo)消息響應(yīng)、窗口管理等GUI 的關(guān)鍵技術(shù)。通過例子說明了GUI 系統(tǒng)的移植性及其方法。最后，結(jié)合此GUI 系統(tǒng)的特點(diǎn)和實(shí)踐，總結(jié)出ESCUT GUI 的特點(diǎn)并給出了其適用的場合。
關(guān)鍵詞：嵌入式Linux；GUI；消息響應(yīng)；稅控收款機(jī)；
Abstract: This article start from the architectural of the Linux system, analyze the structure of
ESCUT GUI. Combining development of embedded Linux in Fiscal Cash Register, this article
discusses the whole design of the ESCUT GUI by illustrating the design of Window, and discuss mouse message, keyboard message, window management and so on, with the example of windows of the system. Transplantation of GUI is explained by an example. Finally, it summarize the characteristics of the GUI system, and show its application occasions.
Key words: embedded Linux; GUI; Key Message; fiscal cash register