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IOleObject::GetClientSite
Obtains a pointer to an embedded object's client site.
HRESULT GetClientSite(
IOleClientSite **ppClientSite
| //Storage of pointer to object's client site
| );
|
|
Parameter
ppClientSite
[out] Points to an address where the returned client-site pointer is stored.
If an object does not yet know its client site, or an error has occurred, this
parameter must be set to NULL. Each time an object receives a call to GetClientSite, it must increase the reference count on the pointer the method returns. It
is the caller's responsibility to call Release when it is done with the pointer.
Return Value
S_OK
Client site pointer returned successfully.
Comments
Link clients most commonly call the IOleObject::GetClientSite method in conjunction with the IOleClientSite::GetContainer method to traverse a hierarchy of nested objects. A link client calls IOleObject::GetClientSite to get a pointer to the link source's client site. The client then calls IOleClientSite::GetContainer to get a pointer to the link source's container. Finally, the client calls IOleContainer::QueryInterface to get IOleObject and IOleObject::GetClientSite to get the container's client site within its container. By repeating this
sequence of calls, the caller can eventually retrieve a pointer to the master
container in which all the other objects are nested.
Notes to Callers
The returned client-site pointer will be NULL if an embedded object has not
yet been informed of its client site. This will be the case with a newly loaded
or created object when a container has passed a NULL client-site pointer to one
of the object-creation helper functions but has not yet called IOleObject::SetClientSite as part of initializing the object.
See Also
IOleObject::SetClientSite
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