Interested to Buy Any Domain ? << Click Here >> for more details...
Do COM keep track of all the object references(Accounting)?
- 3 Answers
- 11614 Views
- Microsoft, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / naviyr
Object references in COM is accounted using two methods of
IUnknown Interface (AddRef and Release).
AddRef: Increments a reference count whereas "Release"
decrements the count.
When the count of the reference is zero the DLL is unloaded
from memory.
| Is This Answer Correct ? | 10 Yes | 2 No |
Answer / vidhya
Component uses reference count for memory
management.whenever a client gets an interface,reference
count get incremented. When client finishes using interface
reference count get decremented. If the reference count
goes to 0, component deletes itself from memory. When
client uses existing interface to create another reference
client has to increment reference count by calling "AddRef"
and release when client finshes using interface.
| Is This Answer Correct ? | 7 Yes | 1 No |
How do you make a NET component talk to a COM component?
Can I use com components from .net programs?
What are queued components?
Define and explain about COM?
Explain object pooling?
What should QueryInterface functions do if requested object was not found?
What is a moniker ?
what is oops
How to Use structs in COM interfaces when Automation compatibility is not an issue?
Differentiate normal DLL to COM DLL
Explain Futures of COM?
Suppose we have object b and aggregated object c (in- proc server), created by b. Can you access any interface of b from c? What?s the difference between aggregated and contained objects?
MFC 
