Occurs, during a recording session, to notify the actual recording duration in milliseconds of a sound file after switching the output file through the SwitchOutputFile or SwitchOutputFileEx methods. The overall duration of the recording session, without keeping count of eventual file switches, can be obtained through the RecordingDuration64 event.
For further details see the How to perform a recording session section.
For further details about synchronization through Events see the How to synchronize the container application through events tutorial.
The event handler receives an argument of type RecordingDuration64EventArgs having the following parameters: