Notifies an object that it is embedded in an OLE container, which ensures that
reference counting is done correctly for containers that support links to
| BOOL fContained
||//Flag indicating whether object is embedded
[in] TRUE specifies that the object is contained in an OLE container. FALSE
indicates that it is not.
Object has been marked as a contained embedding.
Out of memory.
The argument is invalid.
An unexpected error occurred.
method enables a container to inform an object handler that it is embedded in
the container, rather than acting as a link. This call changes the container's
reference on the object from strong, the default for external connections, to
weak. When the object is running visibly, this method is of little significance
because the end-user has a lock on the object. During a silent update of an
embedded link source, however, the container should not be able to hold an object
in the running state after the link has been broken. For this reason, the
container's reference to the object must be weak.
Notes to Callers
A container application must call IRunnableObject::SetContainedObject
if it supports linking to embedded objects. It normally makes the call
after calling OleLoad
and never calls the method again, even before it closes. Moreover, a
container almost always calls this method with fContained
set to TRUE. The use of this method with fContained
set to FALSE is rare.
is optional only when you know that the embedded object will not be
referenced by any client other than the container. If your container application does
not support linking to embedded objects; it is preferable, but not necessary, to
is a helper function that conveniently repackages the functionality offered by IRunnableObject::SetContainedObject
. With the release of OLE 2.01, the implementation of OleSetContainedObject
was changed to call QueryInterface
, ask for IRunnableObject
, and then call IRunnableObject::SetContainedObject
. In other words, you can use the interface and the helper function
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