Copyright © 2006-2018 MultiMedia Soft

SwitchOutputFileEx method

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During a recording session, whose output is being sent to an output file, switches to a different output file without stopping the recording session itself: in this way no sound data will be lost.


This method will return an error for memory-based recording sessions or for recording sessions whose recording mode, set through the SetRecordingMode method, is different from REC_MODE_NEW.


This method can only work when the recording session is started through one of the following methods: StartFromDirectSoundDevice, StartFromAsioDevice, StartFromWasapiCaptureDevice, StartFromWasapiLoopbackDevice and StartFromDjStudioMixer.


Each time an output file is switched, the CallbackForRecordersEvents delegate is invoked with the nEvent parameter set to EV_REC_OUTPUT_FILE_SWITCH.


For further details about output files switching see the How to perform a recording session tutorial.





[Visual Basic]

Public Function SwitchOutputFileEx (

strOutputPath as string,

bResetEncoderCmdLine as Boolean

) as enumErrorCodes



public enumErrorCodes SwitchOutputFileEx (

string strOutputPath,

bool bResetEncoderCmdLine




public: enumErrorCodes SwitchOutputFileEx (

string strOutputPath,

bool bResetEncoderCmdLine









String representing the absolute pathname of the output file that will contain the recorded data. If this pathname should contain invalid characters, they would be automatically changed into an underscore '_' character..


Boolean value that, when recording through an external encoder (MP3, Ogg Vorbis and AAC/MP4) determines if the command line of the external encoder needs to be reset allowing to apply different encoding settings updated through the EncodeFormats object or different tags updated through the TagInfoAddToRecSession method..


.Supported values are the following:

Mnemonic constant



Doesn't reset the command line and continue using the original one


Resets the command line




Return value






Negative value

An error occurred. Check the LastError property value in order to see the last error.

enumErrorCodes.ERR_NOERROR (0)

The method call was successful.