What happens when client calls CoCreateInstance?
- 2 Answers
- 12559 Views
- Cap Gemini, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / chandrasekharreddy siddamreddy
Client Involes
|
CoCreateInstance(IID_IMyInterface)
|
DLLGetClassOject() - This is there in server DLL
|
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 |
What is the difference, if any, between OLE and COM?
Can you explain what is dcom?
C is aggregated by B, which in turn aggregated by A. Our client requested C. What will happen?
what is oops
What kind of components can be used as DCOM servers?
What is a moniker ?
how to call a dll as a COM dll?
Explain queued components.
Define and explain COM?
how do you know it is general dll or com dll
Differentiate normal DLL to COM DLL
When you call CoInitialize(NULL) function how it works internally.
MFC 
