Property retrieval as a single operation uses the

RetrievePropertiesEx

and

ContinueRetrievePropertiesEx

methods. These methods perform a single collection operation.

Incremental property retrieval, also referred to as property monitoring, uses the

WaitForUpdatesEx

method. The initial call to this method retrieves a baseline set of managed object property values. Subsequent calls retrieve changes in property values since the last retrieval. Use

WaitForUpdatesEx

to monitor changes to the inventory or any managed object properties.