Checks recursively whether or not an object is up to date.
Object is up to date.
Object is not up to date.
Status of object cannot be determined in a timely manner.
method provides a way for containers to check recursively whether or not all
objects are up to date.That is, when the container calls this method on the
first object, the object in turn calls it for all its own objects, and they in
turn for all of theirs, until all objects have been checked.
Notes to Implementors
Because of the recursive nature of IOleObject:IsUpToDate
, determining whether an object is out-of-date, particularly one containing
one or more other objects, can be as time-consuming as simply updating the object
in the first place. If you would rather avoid lengthy queries of this type,
make sure that IOleObject::IsUpToDate
returns OLE_E_UNAVAILABLE. In cases where the object to be queried is small
and contains no objects itself, thereby making an efficient query possible, this
method can return either S_OK or S_FALSE.
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