Updates an object handler's or link object's data or view caches.
All caches are up to date.
An unspecified error occurred.
Cannot run object to get updated data. The object is for some reason
unavailable to the caller.
No caches were updated.
Some caches were not updated.
method provides a way for containers to keep data updated in their linked and
embedded objects. A link object can become out-of-date if the link source has
been updated. An embedded object that contains links to other objects can also
become out of date. An embedded object that does not contain links cannot become
out of date because its data is not linked to another source.
Notes to Implementors
When a container calls a link object's IOleObject::Update
method, the link object finds the link source and gets a new presentation from
it. This process may also involve running one or more object applications,
which could be time-consuming.
When a container calls an embedded object's IOleObject::Update
method, it is requesting the object to update all link objects it may contain.
In response, the object handler recursively calls IOleObject::Update
for each of its own linked objects, running each one as needed.
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