Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

What are the purposes of AddRef, Release and QueryInterface
functions

Answer Posted / riddhi

Query Interface method is used to get the pointer to the
interface specified in one of the parameters of this
method. Client then uses this pointer to call the method of
the component.
AddRef and Release are used to increase and decrease the
count of the instance of component loaded in memory
respectively. when the count reaches zero the component is
unloaded.

Is This Answer Correct ?    4 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain Futures of COM?

1006


What is reference counting in com?

957


What are queued components?

1056


Can I use .net components from com programs?

1043


Which namespace do the classes, allowing you to support COM functionality, are located?

2600


Define and explain about COM?

1105


Suppose we have object B and aggregated object C (in- proc server), created by B. Can you access any interface of B from C?

989


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?

972


What is the difference between aggregated and contained objects?

998


Can you explain what is dcom?

923


how to call a dll as a COM dll?

1168


Does .net replace com?

1022


What is the use of com component in .net?

1005


How to create an instance of the object in COM?

964


Once I have developed the com wrapper do I have to still register the com in registry?

1070