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What happens when client calls CoCreateInstance?
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- Cap Gemini, I also Faced
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Answer / chandrasekharreddy siddamreddy
Client Involes
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CoCreateInstance(IID_IMyInterface)
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DLLGetClassOject() - This is there in server DLL
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CoGetClassObject(IID_IClassFactory) - this will return
IClassFactory Interface Pointer. Then call to
IClassFactory->CreateInstace() here we are instatiating the
our class and returning the IMyInterface pointer to client.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / guest
- Reads Root\Classes\ProgId for the matching ProgID
- Reads Root\Classes\ProgId for the matching CLSID. The
CLSID is read from the above step.
- From the CLSID key, the server type and image filename is
known.
- Depending upon the server type, it starts the server.
- Calls CoGetClassObject function to get a handle to the
factory object.
- Then calls createinstance on the factory interface to get
the pointer to the derived object.
| Is This Answer Correct ? | 3 Yes | 0 No |
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MFC 
