This tutorial describes how to request notification from Log Engine.
The Log Engine records events so that other applications can react to them in ways which are not part of its own specification. A typical reaction to an event might be refreshing the screen of the device or causing it to beep, but that is not Log Engine functionality. The Log Engine notifies other applications of a change to its database. It provides two interfaces which you implement to set up notification of changes:
TUid aChangeType the UID of the type of event which occurred
A change to a view typically occurs as part of a sequence of changes, and the position of the change event record in the view typically reflects this fact.
The argument aId is the Id of the log event in the database. The argument aViewIndex is the position in the view where the event record was added, changed or deleted. The argument aChangeIndex is the index of the event in the sequence of changes. The argument aTotalChangeCount is the total number of events in the sequence of changes
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