Instructs the object to release all storage objects that have been passed to
it by its container and to enter HandsOff mode, in which the object cannot do
anything and the only operation that works is a close operation.
The object has successfully entered HandsOff mode.
This method causes an object to release any storage objects that it is holding
and to enter the HandsOff mode until a subsequent IPersistStorage::SaveCompleted
call. In HandsOff mode, the object cannot do anything and the only operation
that works is a close operation.
A container application typically calls this method during a full save or
low-memory full save operation to force the component object to release all
pointers to its current storage. In these scenarios, the HandsOffStorage
call comes after calling OleSave
for the component object; and it puts the component object in
HandsOffAfterSave mode. Calling this method is necessary so the container application can
delete the current file as part of a full save, or so it can call the IRootStorage::SwitchToFile
method as part of a low-memory save.
A container application also calls this method when a component object is in
Normal mode to put the component object in HandsOffFromNormal mode.
While the component object is in either HandsOff mode, most operations on the
object will fail. Thus, the container should restore the component object to
Normal mode as soon as possible. The container application does this by calling
method, which passes a storage pointer back to the component object for the
new storage object.
Notes to Implementors
This method must release all pointers to the component's current storage
object, including pointers to any nested streams and storages. If the component
object contains nested component objects, the container application must
recursively call this method for any nested component objects that are loaded or running.
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