1
????????

• ???
• ??????????????
• http//www.icst.pku.edu.cn/CompCourse

2
??

• ????COM?????
• ????COM??
• ????COM??????????
• ????COM???????
• ????COM??
• ???????????(?)
• ???????????(?)

3
COM?????

• ?COM?????????
• ?????????????????
• COM?IUnknown????????????
• ??????,??????????????????????????????
• ??????
• COM???????
• vtable,???C??????COM??
• COM??????vtable?????

4
COM?????(?)

• ??COM?????
• COM???COM?????????
• ?????????
• IDL
• ????????IDL????
• interface?coclass?library???????
• ??COM???C?????
• ?????????????????

5
COM??

• ???????
• ???COM??????
• ????????COM??
• DllGetClassObject??????
• ???????????????????
• ??CLSID,??InprocServer32
• ??ProgID,??InprocServer32
• ??????????????COM??,CLSID????,ProgID????
• ???????
• ??COM??????????
• ?????

6
COM??(?)

• COM?
• COM??????????
• ??COM??????????CoCreateInstance-gtCoGetClassObject
  -gt-gtDllGetClassObject-gtIClassFactory-gt-gtCreateIn
  stance-gtreturn
• COM????
• COM??????????
• ??????????????????
• ??????HRESULT

7
COM????

• ?????
• ????????????,?????
• ??
• ????????????client/server
• ????,???????????????????
• ??
• ???????????????
• ??????????IUnknown??,??????????????1
  ??????IUnknown ????2 ????????IUnknown ????

8
COM?????

• Marshaling????
• ??marshaling??????????????
• proxy/stub???
• ??????????
• marshaling - transport - unmarshaling
• marshaling???
• ??????????????
• COM?????????

9
COM????

• COM????????
• COM?????????????,???????????????
• ?????
• STASTA???????????
• MTAMTA???????????,?MTA??
• ???????marshaling,???????????marshaling

10
COM???

• ????
• ?????????????????
• ?????????????????
• ???????????????????????

11
?C???COM??

• ????
• ?????????????ATL??
• ????????COM?? MFC??

12
Patterns(??)

• Factory method
• Builder
• Bridge
• Composite
• Iterator
• Strategy

13
PatternsFactory Method
14
PatternsBuilder
15
PatternsBridge
16
PatternsComposite
17
Patterns Iterator
18
Patterns Strategy
19
???????

• ????
• ??,2??
• COM??????????????
• pattern?????????patterns??????,???????????
• ????100,????50
• ?????50,???????