|Important||This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.|
This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
Closes a message session and all the messages created within that session.
Client applications and service providers
A message session is used by client applications and service providers that want to deal with several related MAPI IMessage objects built on top of underlying OLE IStorage objects. The client or provider uses the OpenIMsgSession and CloseIMsgSession functions to wrap the creation of such messages inside a message session. Once the message session is opened, the client or provider passes a pointer to it in a call to OpenIMsgOnIStg to create a new IMessage-on-IStorage object.
A message session keeps track of all IMessage-on-IStorage objects opened during the duration of the session, in addition to all the attachments and other properties of the messages. When a client or provider calls CloseIMsgSession, it closes all these objects. Calling CloseIMsgSession is the only way to close IMessage-on-IStorage objects.