Symbian 经常用的函数总结

核心提示：ditheringError diffusion, or dithering, is a way of avoiding aliasing due to a cut-down palette size. If a colour cannot be matched exactly then the nearest col

dithering

Error diffusion, or dithering, is a way of avoiding aliasing due to a cut-down palette size. If a colour cannot be matched exactly then the nearest colour is used and the difference remembered. Then on the next pixel the difference is added to the desired colour and the result matched to the nearest colour available. In this way a mid-blue, for example, might be represented by a scattering of dark blue and light blue, if that mid-blue were not available in the current palette.

抖动：错误扩散或者称为抖动，是一种防止调色板缩小尺寸时候产生混淆的方法。如果一种颜色无法被匹配，则使用离它最近的颜色代替并记录差异。继而在下一个像素添加该差异到期望的色彩，使得结果趋于理想。例如，使用该方法，如果当前调色板中没有蓝色时，就可能被散射的深蓝色和浅蓝色代替。

DLL

Dynamic Link Library. Dynamic Link Libraries are loaded in response to an explicit API call made by an executing program.

动态链接库：运行中的应用程序从外部通过显式声明的API调用来装载DLL。

See also: dynamic link library, statically loaded DLL, dynamically loaded DLL, API

DLL export table

An area in the DLL which lists the DLL addresses of exported items; In Symbian OS, these items are indexed by ordinal.

DLL导出表：DLL中某个列出其导出项目列表的区域;Symbian OS中，这些项目通过序数索引。

See also: DLL, export, name build, ordinal build

document

Application Architecture : A run-time object containing data associated with a specific instance of an application program. A document may be stored to and restored from a document file.

文档：应用程序的一种架构，实时对象包含了与特定应用程序实例相关联的数据。一个文档可能通过文档文件进行存储和恢复。

Application framework : File-based applications use a document object to provide an intermediate layer between the app UI, the model and the file the model will be stored in. Non-file-based applications will only use a document to