com 函数(1)

 

这些函数只做了解

1.CoGetInstanceFromFile

Creates a new object and initializes it from a file using IPersistFile::Load.

IMoniker内部的BindToOjbect会调用此函数

2.CoGetInstanceFromIStorage

Creates a new object and initializes it from a storage object through an internal call to IPersistStorage::Load.

IMoniker内部的BindToStorage会调用此函数

3.CoTreatAsClass && CoGetTreatAsClass

类模仿

Establishes or removes an emulation, in which objects of one class are treated as objects of a different class.

发现微软官方有就不写了

http://support.microsoft.com/kb/126157/zh-cn

4.组件分类

请参考com本质论 3.14章节 组件类别,已经很详细介绍