剖析Microwindows的Win32兼容GDI技术

ANALYSIS OF MICROWINDOWS WIN32 COMPATIBLE GDI

M icrow indows是一个开放源码项目,其目标是在小型的设备平台上提供通用的图形窗口环境。尽管M icrow indows一直在努力地提供与W in32相兼容的API,但是由于它缺乏全面的维护和文档,对那些不仅希望在W in32API层面进行软件移植,同时试图利用其底层兼容性的使用者造成了困难。本文通过对大量源码的观察和一系列测试,对M icrow indows的GD I技术进行了各个层次的分析,提供了一个详细的M icrow indows GD I实现描述。

Microwindows is an Open Source project aimed at bringing the features of modern graphical windowing environments to smaller devices and platforms. Mthough Microwindows was designed to provide 100% compatibility with Win32 API ,it still left the detailed information about its GDI implementation to the users who are not only going to port their applications at Win32 API level but interested in the low level compatibility as well. Here we present a profile describing the detailed GDI routines by investigating its source code and give the result of a series of test cases,which compared it with Win32 GDI ＆ GAPI at deferent levels.