Copyright © 2011-2018 MultiMedia Soft

CallbackWaveformAnalyzerHorzLineReachedSet method

Previous pageReturn to chapter overviewNext page



Sets the function of the CallbackWaveformAnalyzerHorzLineReached callback delegate which notifies when the playback position reaches a graphic item of type "horizontal line" inside the waveform analyzer.


For further details about callback delegates see the How to synchronize the container application with the API tutorial.

For details about the use of the Waveform Analyzer refer to the How to use the Waveform Analyzer section.

For further details about methods of the Waveform Analyzer refer to the WaveformAnalyzer class section.





[Visual Basic]

Public Function CallbackWaveformAnalyzerHorzLineReachedSet (

function as CallbackWaveformAnalyzerHorzLineReached

) as enumErrorCodes



public enumErrorCodes CallbackWaveformAnalyzerHorzLineReachedSet (

CallbackWaveformAnalyzerHorzLineReached function




public: enumErrorCodes CallbackWaveformAnalyzerHorzLineReachedSet (

CallbackWaveformAnalyzerHorzLineReached function









Callback function



when using the API from Unmanaged C++ through COM interaction, where the client application is totally unaware about .NET delegates, you should use the "Ptr" version of the method which allows passing the pointer to the callback function:


[Unmanaged C++]

enumErrorCodes CallbackWaveformAnalyzerHorzLineReachedSetPtr (

(UINT_PTR) functionPointer








Pointer to the callback function.

See the Adding the API to an unmanaged Visual C++ project tutorial for details about usage of the "Ptr" version of these methods.



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.