Copyright © 2011-2018 MultiMedia Soft

CallbackWaveformAnalyzerLineMovedSet method

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Sets the function of the CallbackWaveformAnalyzerLineMoved callback delegate which notifies when a graphic item of type "vertical line" inside the waveform analyzer has been moved.


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 CallbackWaveformAnalyzerLineMovedSet (

function as CallbackWaveformAnalyzerLineMoved

) as enumErrorCodes



public enumErrorCodes CallbackWaveformAnalyzerLineMovedSet (

CallbackWaveformAnalyzerLineMoved function




public: enumErrorCodes CallbackWaveformAnalyzerLineMovedSet (

CallbackWaveformAnalyzerLineMoved 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 CallbackWaveformAnalyzerLineMovedSetPtr (

(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.